Chapter 4: Shining Armor's Workout

Umbra marched through the halls of the Crystal Palace with renewed confidence. She could see a path forward to regain her power; it wasn’t the ideal path. She longed for the opportunity to crush her foes beneath her feet, to make them all suffer for the injustices she had once suffered, but this would be its own kind of satisfying. To bring her arch-enemies to their knees under the weight of their own perversions.

But that day of domination hadn’t arrived yet, and Umbra would have to work for it. Her mind was setting itself to work, thinking about her target, Shining Armor. What she knew about him and considering what weaknesses she could exploit.

He was a royal guard, loyal to Equestria and the princesses. He wasn’t a natural conqueror; that would have to be instilled in him. A need that she needed to fill him with, but what would be the best way to do it? She didn't have her dark magic anymore; it would be down to her and her skill, but Umbra was determined all the same.

As she walked down the halls of the Crystal Palace, another thought gnawed at her mind. She was walking past stallions and mares that had once quivered in their feet as Sombra had ruled over them; now they only glanced at her like an odd little curiosity. The strange girl whom the prince and princess kept in their castle, like a pet. The thought was infuriating; the looks of pity and idle curiosity taunted Umbra's pride.

The gym was located on the middle floors of the Crystal Palace, not important enough to be on the top, nor having any reason to be accessible to the public on the ground floor. With a wave of her horn, Umbra dispelled the dominatrix outfit she had been **** into with a more practical sports bra and pair of shorts so short they might be a belt; with deft hands, she tied her hair back into a ponytail. She was ready to exercise but still looked like an all-you-can-fuck buffet, just innocent enough to get away with it though.

She entered the gym; it was large since it wasn't private. Umbra had heard that the gym was free for any guardsmare to use to help practice and exercise; that way, the prince could relate and spend time with his guard. Umbra had overheard him mention that it was a great way to make friends and instill loyalty. BAH! These sluts need discipline, ruthlessness, and strength of will to lead them.

As Umbra's eyes scanned the room, she spotted it was only occupied by two ponies; the first was one of the aforementioned crystal guards. A crystal unicorn mare with a rack that jiggled with every step she took on her treadmill, but the sweat that soaked through her sports bra wasn't a result of her exercise, though. Because out of all the treadmills in the gym, this guardsmare had taken special care to choose the one that would give her the best, most clear view of the stallion working at the weights bench.

Shining Armor was certainly no ordinary stallion, as much as it hurt Umbra's pride to admit it. His muscles rippled with every step he took, his abs were firm and strong enough to grate cheese off of, his biceps bulged like those of a dragon, and his blue mane flowed down his neck in long, shaggy, yet sexy locks. He was focused on the weights in his muscles, lifting a bicep in one hand that most wouldn't be able to lift with two.

He was bold too, wearing only a pair of gym shorts that strained against his every contour, and then there was his cock. Umbra could see why the guardsmare had wanted a good view; even when flaccid, it was enough to bulge through as if someone had placed a sizeable rock inside. Umbra could only imagine that glorious stud railing her next, bringing her holes to new heights of pleasure in a way that Umbra's fingers could only dream of.

Umbra tsked, moving forward and banishing the lewd thought in her head. She knew it wouldn't stay gone for long; it was clear that she was now seeing Shining Armour as a woman for the first time. No longer seeing him as that annoying pest in her way but instead as an excellent hunk of a stallion. Umbra stitched a brave smile onto her face, refusing to betray her lustful thoughts on her face.

Shining turned to her even as he lifted the bicep. He smiled, a relatively warm smile on his face, not a trace of fear on it. "It's good to see you up and about. We were worried about you, Sombra."

Sombra...he called her Sombra. Called her by her real name, not the one that she had been **** to adopt. Though the name Umbra was one she was quickly becoming used to, it was still a relief to hear her old name, and...and she was blushing. Fuck.

Umbra tsked and looked away with a huff and marched past Shining Armor; she needed to keep her image intact. She couldn't be the mistress if he knew how easily he could set her heart aflame, how easily he could make her blush. She was a dark queen, a powerless one maybe, but one who was still a threat and would not be treated any other way. "Thank you, but I'm just here to exercise."

Shining Armor seemed taken aback by the politeness in Umbra's voice. Since her capture, Umbra had been nothing but hostile, so this took the Royal Guard captain by surprise. Umbra didn't see the need to offer any kind of clarification; however, she wanted to be mysterious. She wanted her target to not quite know what was going through her head; imagination could spark such wonderful fantasies.

The Crystal Guard's treadmill was slowing down, the soldier's exercise coming to an end, it seemed. The almond eyes of the unicorn never quite left the muscular physique of her captain, however, enjoying every second she could steal of her captain's glorious body whilst he was distracted by Umbra. At least until her treadmill had stopped completely and she had invertedly banged her tummy on the front of it.

"Owww...gah..." She growled, rubbing her stomach and her cheeks turning as pink as a rose. Shining Armor dropped his weight on the floor as he looked to his soldier in worry.

"Are you alright, Silver Shield? You've got to be more careful; this isn't the first time this has happened." He said his worry was so sincere, it only made it more embarrassing to Silver Shield.

"I'm sorry, sir, I was...distracted." She muttered as she stroked her stomach, unable to meet her superior's eyes.

"Maybe we should get you some safety gear or something; we can't have you banged up before a fight." He said in exasperation, so sweetly naïve to the true reason his guard was distracted. How foolish. Poor, poor Cadance. It must be so frustrating to be married to such an oblivious fool, although with a body like that, the sex must be worth it.

No! Stop it, Umbra! You're getting distracted again.

Thankfully neither Shining Armor nor Silver Shield noticed her mental anguish; instead, they were distracted by their own awkward conversation as Silver Shield tried desperately to avoid confessing her ever-so-obvious crush. "I-I'll keep that in mind, Sir. I'll just do some stretches."

Silver Spoon practically darted across the gym to escape the presence of Shining Armor; Umbra could only imagine the mental anguish she was suffering. She found a yoga mat across the gym where she could stretch in relative privacy. As she walked, she made such a great view; she was likely unaware of how well her glorious behind shook behind her.

And the sight of that naïve, insecure unicorn was sparking new dark thoughts within her mind. Perhaps this guardsmare could be useful in helping corrupt Shining Armour; she could be a gateway ****. Perhaps Shining Armor would be alienated by the Dark Queen seducing him; perhaps he would be foolishly loyal to his wife when the ancient enemy of the Crystal Empire was asking him for sex, but perhaps if a sweet, kind guardsmare were suggesting it...

Umbra followed Silver Shield, taking the guardsmare by surprise. She likely had no idea of Umbra's own identity nor the true threat she posed. "Um...yes? Can I help you?"

How foolish.

"I simply wanted to stretch with you; I hope you won't mind." Umbra purred. Silver Shield took a step back from the erotic allure of the dark Queen's voice but ultimately could think of no good reason to refuse.

"Sure, I suppose." They start simple enough, with regular common stretches for the royal guard. Shoulder stretches, back stretches, knee stretches, neck stretches, all common forms of exercises that any regular gym bunny would know all too well. Silver Shield grew more visibly relaxed, falling into a comfortable rhythm and letting her guard down...

"You like him, don't you?" Umbra said, sending Silver Shield's eyes wide and sending her crumbling down onto the yoga mat, spluttering.

"Like? Like who? Do you mean I like exercising? Because of course I do; nothing strange about liking exercising, nothing immoral about it either, thank you very much..." She spluttered, words leaving her mouth without any time to think. Umbra smirked. What a delicate and insecure creature, so very easy to manipulate.

"I mean Shining Armour, that Adonis stud over there." Umbra whispered into her ear, pointing toward the prince of the Crystal Empire. He was faced away from them, but his rippling back and juicy glutes were on full display as he lifted a barbell over his shoulders. "He just makes you dripping wet, doesn't he?"

"Yeah..." Silver Shield drooled before her head shook and her mind caught up with what she just said. "Wait, no, he's the prince; he's married to the freaking princess of love herself."

"You're worried you couldn't compete with that?" Umbra asked, standing over the spluttering girl with a wicked grin and a smile on her face. Silver Shield shook her head, even as the disappointment on her face made it clear that it was at least one reason.

"He's married! He's got a daughter! He's the prince! I can't break such a lovely, happy family apart!" She protested, pulling on her silver mane in stress, only causing Umbra to laugh.

"That's what makes it fun!" She declared, knowing that the last think that would upset Cadance would be the knowledge that Shining Armor was having his way with other mares. When Umbra received nothing but a shake of her head, she decided to reveal a little secret. "You know I heard from Cadance herself that they have an open relationship."

The anxiety in Silver Shield's face cooled, replaced with a more cautious and optimistic look. Her gaze glanced between Umbra and Shining Armor, careful consideration stretched across her face. "It's a fantasy; I mean, look at him! What would he want with me?"

"Well, these, to begin with." Umbra purred, reaching under the Crystal Guard's sports bra and giving them a hefty squeeze. Silver Shield's mouth opened in shock, but not a single word was uttered as she was distracted strangling her squeals. Her almond eyes darted towards Shining Armor, hoping that he didn't see that, and to her immense relief he didn't. "They are quite the fine pair; they could be wrapped so nicely around his cock. Maybe needing a partner to wrap all the way around that."

"Don't talk like that." She admonished, but there was a gentle playfulness in her voice. "What if he hears us?"

"He won't, but he's almost finished his set. When he turns around, make sure you give him a good view." Umbra whispered, conspiratorial dark thoughts running through her mind as she plotted every step of her plan.

"Like what?" Silver Shield answered, the hope in her voice overriding her good sense.

"Follow my lead," Umbra purred. She started with a cat pose, a pose where she would get on her hands and knees and make sure both her rear and head were held high. "Make sure you give him a good side view of your stretch; that way he can see the full curviness of your body. And give a little wave of your tits."

"Like this?" Silver Shield asked, positioning herself so that as much of her ass and tits were visible to the unicorn, while her torso began to shake a little like a snake.

"Yes, my dear, you're doing me proud." Umbra whispered, her voice filled with a dark pride. Adopting her mistress persona and filling Silver Shield with a strange delight. Out the corner of her eye, Umbra could see Shining Armour drop his weight.

"He's turning around; don't look at him, just look at me. Don't let him know you've noticed; let him come to us." Umbra whispered she would draw this Adonis in like a cat. Don't chase the cats through the gardens or down the streets; simply lay a tray of milk at your doorstep and let them come to you.

"Yes...um..." Silver Shield said, almond eyes boring into Umbra's blood-red eyes. How quaint; she was trying to be polite but didn't know Umbra's name. Well, there was only one real answer.

"Mistress," Umbra whispered, her voice making it clear that there was no room here for debate. "Perhaps I might allow you to address me as 'queen' as well, but for now you must address me as 'Mistress.'"

Silver Shield's eyes widened; she knew the implication of what Umbra's meaning was. But she also knew she was lost without Umbra, unable to find a way into Shining Armour's heart or pants without Umbra's guidance. The poor girl had only one choice.

"I understand...Mistress," she whispered. Umbra could practically hear the heart hammering in her chest.

Something fell to the ground, something soft. Perhaps a towel; it seemed they had gathered Shining Armour's attention. "Stand."

Umbra got to her feet, with Silver Shield following behind her; they kept eyes locked on one another's. They couldn't scare Shining Armor away, nor betray Silver Shield's desperation. "Follow my lead."

She turned ninety degrees so that she was facing away from Shining Armor, the same way the unicorn had been standing away from them before. Fortunately for them, there was a wall mirror standing before them, putting the two of them at an advantage. They could see his face; he couldn't see theirs.

Now faced away from their prey, they got back on their hands and knees, this time doing a puppy pose. Pressing their heads to the floor and sandwiching both their chest and tits against the soft yoga mat while lifting their rear high in the air, their arms lay forwards as far as they could reach. The stretch was designed to stretch the back muscles, but it had the oh-so-delightful side effect of making sure their asses were raised like a flag.

Umbra could see in the mirror Shining Armor was staring. There was a flash of guilt in his eyes, but his body seemed stunned, walking on autopilot, as if in a trance. Umbra bit back a giggle and settled for making an amused smirk; she had the poor fool exactly where she wanted him. Silver Shield was following Umbra's every move; had they not looked so different, they might have been mirror images.

"Now, sway. Subtly," Umbra ordered, taking the lead. She had to admit the draqonequus had blessed her with a truly beautiful behind; perhaps only Luna herself could compete with it. It was big, firm, never shagging nor jiggling; you could smash a bottle across it, and Umbra wouldn't feel a tremor. It glided through the air like a knife and drew the captain's gaze like a lighthouse.

He was approaching now. One footstep after another, they came slowly as if he had to convince himself to take each and every step, but the sheer sex appeal of the two mares' behinds **** him to come closer.

Umbra could see the warring emotions behind his eyes; in two different ways, the situation was so erotically twisted. To the captain's left was Silver Shield, his subordinate, an innocent mare who looked up to him. One that would be all too easy to take advantage of, her ass was much more fleshy than Umbra's, but that came with its own appeal. One could slap across it and it would send it jiggling like a jacuzzi.

And to the prince's right was a sight even more twisted. The tainted, gothic allure of the ass of his arch-nemesis, an enemy that his ponies feared and hated, one with so many crimes under her belt. So many ponies enslaved, so many families torn apart, and so many twisted, twisted possibilities. It would be the ultimate betrayal to his kingdoms, to his wife, to his sister, and to his principles. But what a way to lose them.

Still deluded enough to think that they hadn't noticed them, Shining Armor continued to close the distance, his gaze never shifting as if glued to the display before him. Umbra's own heart was thundering in excitement; it was working. Just about time to seal the deal.

"Well, well, well, it seems you are interested in other mares after all. See something you like?" Umbra asked, thrusting her own perfect, firm ass into his crotch. Shining Armor stumbled back as if he had been hit with the full **** of a battering ram, falling back onto his butt. The two mares rose, Silver Shield rising just a second after her; she looked a little tepid, but she knew better than to interrupt. She followed Umbra's lead as they closed the distance like a shark smelling blood in the water.

Shining Armor was trying to speak, but no words managed to come out, but that was quite alright with Umbra. His body did all the talking for him; his eyes were wide, his hands and knees shook, and his dick. Oh, his dick was so painfully erect; the tip could be seen even through those baggy gym shorts. "Somepony seems uncomfortable; would you like our help?"

"We can't... we shouldn't be doing this." He was scared, how quaint, but soon he wouldn't be scared; soon he would know that the world was his to take and use as he pleased. Soon the world would be his oyster. "I'm a married man."

Silver Shield stopped moving, hesitating. Umbra had to resist the urge to slap her for showing weakness, but nevertheless, she continued her attack. "You are, but I've heard some interesting things from Cadance. She's noticed the other mares looking at you, feasting on your body, and she isn't so selfish as to keep you all to herself."

"O-other mares?" He asked; he seemed genuinely confused. How naïve, just like she suspected. Utterly oblivious to the effect his body had on mares, Umbra started tutting, like a school teacher disappointed with her student.

"You have only yourself to blame for forging that muscular physique and working out topless. Did you truly think nopony was watching? No pony was taking a chance to sneak a few glances?" Out of the corner of her eye, Umbra noticed Silver Shield flush. "Really now? So irresponsible of you."

"I wasn't—I mean—I didn't mean to—"

"It seems he needs some training on what to do with his cock. How to make amends, let's show him together." Umbra purred before Shining could use his magic to resist, using her magic to drag down his gym shorts. The unicorn's frantic hands, just a second too late to cling to them.

The cock that sprung forth from his shorts sent the room into a deadly silence. Even Umbra had no words to say to the behemoth that stood before them; it was as long and as thick as an arm. Far bigger than Sombra's old cock and bigger than the one that Discord had shown her. Was that intentional? Perhaps the Lord of Chaos was watching in this very room, snapping photos of her reaction.

If he were, then he wouldn't be disappointed; it took a good few moments before Umbra realized that she was drooling, her jaw hanging wide open and blood-red eyes shimmering with shock. "Q-quite a behemoth you have there; it's so very selfish of you to keep it to yourself."

She said the words, but with none of the allure or the confidence that had been in them before. She was flustered, her façade crumbling, the situation slipping from her hands before the might of this mammoth of a penis. She needed to get a grip, or things could escalate badly. She could see Silver Shield drooling, her mind dropping out of her head one drop at a time.

Thankfully Umbra wasn't the only flustered one; the great and mighty captain of the Crystal Empire had his head in his hands. His eyes closed and his cheeks flushed red, as if he could somehow block out the whole world. But with every second his dick was hardening, he was getting hornier, his body betraying him, a weakness that Umbra was sure to exploit.

"Oh dear, you've not been honest with us, have you?" Umbra purred, flicking a drop of pre-cum off the tip of his cock. "Does your wife know how hard you get for other mares?"

"I can't help it!" Shining Armor confessed; his voice was ****, close to wailing. He was like a follower confessing his sins to his priest. "It keeps getting hard with every mare I pass. I try and be loyal to Cadance, and she makes me ever so hard, but...but she's not the only one."

"Oh?" Umbra grabbed his shaft with one hand, or at least as much as she could reach. She started to pump slowly, though. She didn't want to push him over the edge just yet. "Who else?"

Shining Armour looked like he was wishing the floor would open him up and swallow him whole. The poor stallion had probably been suppressing this secret all his life, and he looked like he wished he could suppress it just a little longer, but the glare in Umbra's eyes and the grip she had on his cock made it clear that there was no room for negotiation.

"My wife... then there are the maids. They're so cute and sexy, talking in their delightful accents, and their outfits with their heels and fishnets and skirts that are so short. I don't know what Cadance was thinking." He babbled, head still in his hands. Umbra believed she knew exactly what Cadance had been thinking, the naughty little minx.

"There's also the princesses. Both Luna and Celestia, it's like they were carved to perfection, each complimenting each other perfectly. Celestia's tits, they're absolutely divine, and Luna's ass it's...it's…perfect. Maybe better than Cadance's; I'm so awful," he confessed, and Umbra let out a chuckle. The poor thing felt so guilty, so ashamed of himself.

"Don't be ashamed; it's common in Equestria to feel those feelings. It's known far and wide that Celestia and Luna are gods of tits and ass as much as they are gods of the sun and moon," Umbra purred, her voice a mockery of reassurance. But it did little to assuage Shining Armor's frantic mind; there were others, others who filled him with greater shame.

"Don't hold anything back now; it's time for the truth to come out." Umbra purred, her voice dark and inviting, but this time the prince's lips remained shut. He needed more stimulation.

Umbra leaned down into Silver Shield's ear. The poor mare was watching the lewd display with captivated eyes. "Do your part as well, my dear; your prince needs you. It's important that he faces the truth, that he accepts what he wants, and what he wants now is your tits around his cock. Isn't it Shining?"

Silver Shield looked between her mistress and her captain, no doubt debating whether she should embrace or stop this. But Shining Armour wasn't saying no, wasn't shaking his head; his only communication was his eyes darting between Silver Shield and the tip of his cock.

"Don't you want to show your affection? Show him how much he means to you? Reward him for being such a perfect captain over the years? Doesn't he look like he needs your wonderful tits wrapped around his cock?" Umbra's words were like poisoned honey, and they sent shivers down Silver Spear's spine. With tentative fingers she pulled her sports bra over her head and locked eyes with Shining Armor. A silent question of whether she wanted him to stop.

Shining Armor's eyes remained fixed with his subordinate, no doubt his mind warring with itself in needless mental turmoil. After an agonizingly long time where he tried to convince himself to say no and **** himself to shake his head, he submitted to the whims of his dick and nodded. Silver Shield was slow, almost as hesitant as Shining Armor himself, but that was exactly what Umbra wanted. Not to shove the stallion into the deepest end of the swimming pool, but to allow him to wade through the shallows at his own pace.

Silver Shield's bust was all too pleasurable on the prince's cock, and his face soon betrayed his enjoyment, and the soft coos escaping his mouth told Umbra all she needed to know about how much Shining Armor was enjoying the velvety touch of the crystal unicorn's bust. Umbra, though, wouldn't let that distract the prince from answering the truth.

She stepped over the prince's face, happy to let Silver Spoon's tits continue pleasuring Shining Armor's cock instead of her own hands. She rested her ass, still clad in her thin gym shorts, on top of Shining Armor's muscled ribs, pressed her tits against his pecs, and **** his sky-blue eyes to look directly in her own blood-red eyes. "There's more, aren't there? More ponies who drive you wild with lust, more mares who creep into your dreams even as you rest at your wife's side."

With a long, shuddering sigh, Shining Armor knew he couldn't keep this secret any longer; the truth was due and was about to be milked from his cock. "Yes."

"Who?" Umbra's question was crisp, sharp, and dripped like poision.

"My sister...my mother...I want them too." He confessed, his breath taking on a defeated sigh and Umbra giving a fanged, gleeful grin. Oh, it was obvious; she knew it from the way he tried so hard to keep it a secret.

"Tell. Me. More," Umbra ordered, red nails walking across his chin. He was hers now, hers to mold however she wanted; whatever defenses he had left, she would break through with the **** of a god.

"Twilight, she...Celestia, she doesn't know how fuckable she is. Those jumpers can't make me dream all the more about the tits underneath. She's always going around with a sweet naïve smile, but her eyes burn with such knowledge, knowledge that could be put to sex and sin. She never even realizes; she's too innocent, but she just drives me mad!" Shining Armor confesses; there was no shortage of relief tearing at those words. A weight he had resolved to carry around his heart to the grave was now finally coming undone.

"And your mother...?" Umbra pushed, just a little. Let him say the words himself; let him make the confessions.

"She's such a MILF; she ages so gracefully. She's a grandmother now, and yet I don't see a single wrinkle on her. Her mane is perfect, long, and glossy with not a single gray hair in it. She must be a constant tease; her sundresses are always a shade too small, there's always a bit too much cleavage... or perhaps that's because of her tits. H-Cups. All natural, and still not sagging when she's over fifty! And she's wearing high heels all the time; it's like she gets off teasing her own son!"

"Perhaps she does... perhaps one day, eighteen years from now, you'll be doing the same thing to your daughter." Umbra suggests, taken by a moment's inspiration.

"Fuck...I...I'm going to...can't..." He gasped, looking as if he were in pain. Looking over her shoulder, she could see that Silver Shield had thrown away any dignity or shame, now eagerly debasing herself before Shining Armor's cock. She threw her tits around it with renewed fervor, as if it were a lifeline. Her tongue fell out of her mouth and licked up and down in with lewd, slobby abandon. Whenever her lips would grace the tip of his cock, she would make sure to take the opportunity to swallow as much of the cock as she could **** into her throat before returning to her titfuck.

Yet as she did so, Umbra noticed something around the tip of his cock. Something faint, as faint as a small whisper of smoke around the tip of his cock, his magic. It was doing something, keeping him from releasing his cum. Umbra shifted herself, her glorious gothic ass now straddling the poor prince's face. No doubt her firm behind, with just a few beads of sweat rolling down it, would be seared into his fantasies for years to come.

But Umbra's focus was distracted by the tip of his cock, with the small trace of magic at the top of it. Squinting, she could identify the spell immediately; it was one that held him back from orgasming, just letting his cum back up and up with no release in sight. The poor unicorn, that must hurt; his release is needed so badly and yet denied for such pointless reasons.

"Oh no, no, no. How could you do this to yourself?" Umbra asked, glancing over her shoulder as a thumb traced over the magical seal. Shining Armor's eyes widened in horror, knowing that she had realized what he was doing. "This must be unhealthy, backing up all that semen. And it is so cruel to deny Silver Shield all this sweet, sweet ambrosia. Just look at how hard she's trying."

Silver Shield moaned, her mouth filled with the side of Shining Armor's cock as her frantic hands continued to glide her glorious tits up and down. Umbra flashed Shining Armor a wicked smile, searing his panicked expression into her mind forever. "Allow me to fix that for you."

"Don't please!" He gasped, a hand raised to stop her, before he gave a weak smile. "You're bluffing; you don't have magic."

Umbra let out a wicked grin and a high-pitched laugh that echoed through the halls as she watched the weak smile on his face give way to panic. "Don't I?"

It wasn't a difficult spell, not least of all because Shining Armour hadn't bothered to resist. Perhaps believing she was bluffing, perhaps he knew the futility of resistance, or perhaps it was something he secretly wanted the seal gone, but Umbra effortlessly dispelled the enchantment as simply as blowing out a birthday candle. It didn't take long for the white gold to start flowing, bursting from the tip of his cock like a hose pipe and becoming a fountain of semen.

A simple magic shield braced Umbra from being covered in the sticky semen, but Silver Shield was either not so quick or not so eager. Her shimmering crystal-like breasts were now covered in the thick ambrosia; her mane was covered in drops of the cum. Glittering against her silver mane like diamonds in water, her face started to reap the rewards of being drenched in the cum.

"Oh gosh..." Shining Armour gasped, looking at Silver Shield. "Silver Shield, I'm so sorry."

For a good moment Silver Shield was silent, simply allowing the cum to settle into her skin, allowing it to drip across her crystalline fur. Her breathing was heavy; her timid hands took up dollops of cum, her tongue would taste idle drops, savoring it in her mouth like the finest wine.

Then the stunned expression gave way to a delighted smile; her tongue would stretch out across her face to find any trace of the amazing substance. With frantic hands that rushed as if she were engulfed in flames, she tore her gym shorts in two with no way to repair them. She rushed to her hands and knees, lifting her ass in the air and crashing her face and tits into the ground, twerking her ass like a dancer.

"Please, Sir, please fuck me with your massive bitch-breaker cock. Please slam it down deep into my cunt as fast as you can until I can no longer walk straight. Break me, ruin me, make me addicted to your cock, Shining Armor. Fuck me until I'm your ****, your bitch, your fucktoy!" She begs with wild abandon, taking both Umbra and Shining Armor by surprise.

She was like Cadance, was there something in the air of the Crystal Empire? A long-held magic that made all the women in the Crystal Kingdom crave being dominated and enslaved by a huge, sexy dick? Umbra hoped it wouldn't start affecting her as well.

Umbra's attention quickly shifted to Shining Armor, only just on his feet and looking at Silver Shield like she was a demon possessed. "We shouldn't...I've already..."

The protests were weak, and Shining Armor knew it. They were token tributes to his despoiled wedding vows, if only he knew how badly Cadance wanted them defiled. Umbra knew instinctively what to do next. "Don't be such a spoilsport. Look into her eyes, look how much she wants this, how much she needs this."

Shining Armor's eyes looked into Silver Shield's; he could see the white-hot lust that had overcome them. Gleaming in Silver Shield's eyes like a burning star, a reflection of how her body craved being taken, of being used by Shining Armor. Umbra pressed her attack, taking his cock in her left hand and whispering into his left ear. "You know she wants it; she wants you to be her master, her owner, her king..."

At the word 'king,' Shining Armor's cock began to twitch. How intriguing. Perhaps Cadance had chosen the right stallion after all. "Oh, you like that, don't you? Not a petty prince any more, no longer bound to share the power or rule at your people's request but a king. A conqueror, an absolute ruler of this kingdom..."

Just like me

The thought entered Umbra's head, but she didn't dare share it out loud, not wanting Shining Armor to have his morals questioned or give him doubts of his own morality. But it was an intriguing concept; there were no kings or queens in Equestria. The term had long ago been too associated with ancient despots and tyrants like Umbra, but perhaps there was a part of Shining Armor that craved it. Perhaps they weren't so different after all; perhaps they might make a good pair.

But Umbra shoved that thought aside and returned to corrupting the poor fool. Towards making Shining Armor much more like herself. "Look how she craves it, 'King' Shining Armor, how she wants you to conquer her. To make her your bitch, your fucktoy, your ****. You need only ask her, and she will serve you as your **** forever.

Shining Armor visibly swallowed, no doubt still struggling with the morality of the decision, but Umbra didn't mind; she knew which way the coin would drop. After all, what red-blooded male would resist such a display?

"Alright..." Shining Armor muttered, the words surprising even himself. "Silver Shield, if that's what you really—"

"She doesn't want you to ask!" Umbra hissed into his ear, causing the captain to hesitate and pause midstep. "She wants you to demand, to order. She doesn't want the choice. If you say jump, she will jump; if you say fight, she will fight; and if you say fuck, then she will fuck. Hard."

Shining Armor was nodding; Umbra could see the thoughts swirling around in his head, steeling himself for what he must do. "Silver Shield."

There was a noticeable quiver in his voice, a bit of hesitation in this new sex master role, but Silver Shield still looked at him as if he were a god all the same, hanging on his every word. "Your request is accepted; you will serve me for the rest of your life. Your new purpose is to give me pleasure, to anticipate my every need, and to fulfill them to my satisfaction. You should consider your own needs irrelevant compared to mine and worship me more than the air you breathe."

There was a pregnant pause; Umbra could hear the insecure thoughts in his mind and could just imagine the doubts. Was he going too far? Not far enough? Had he embarrassed himself? Insulted Silver Shield? Was he becoming like Sombra?

But those thoughts soon evaporated as a gleeful smile stretched across Silver Shield's face, and her pussy began to gush like a waterfall. "OH YES PLEASE! Please, my master, my king! Fuck me, take me, use me! I’m your **** and I’m so, so glad to serve you.”

Shining Armor approached, Silver Shield behind. She was still waving it, both as an invitation and a dare. He took her fleshy ass in each of his hands and spread them, his hands still shaking. This was another line he was about to cross, another breach of his once so sacred marriage vows, and yet there was no resisting it. He had come too far, was in too deep, and was getting so much pleasure.

He lined up his cock at the entrance to Silver Shield's love canal, perfectly ready to thrust. One simple thrust of the hips would be enough to start fucking her, to start taking this beauty for his own. In his own mind he'd be betraying his wife, betraying Cadance for a hormonal, teenage fantasy. Yet he thrust anyway.

"I'm sorry, Cadance." He murmured under his breath; the poor sod seemed genuinely disappointed in himself, and Umbra needed to push him. “Don’t be sorry, my pet. This is natural; you’re strong and powerful; you should take what you want. Cadance will love you all the same, perhaps all the more."

Shining Armor didn't respond, either too ashamed or too distracted to answer; instead, he simply continued to thrust into Silver Shield, gradually gaining more enthusiasm as the guilt started to crumble under the weight of his lust. Just as Umbra wanted, but he needed to go further, cross more lines, and take more pleasure for himself. But he wouldn't cross those lines on his own, nor at Umbra's suggestion, but perhaps...

Umbra leaned down and whispered into Silver Shield's ear. Silver Shield's tongue had rolled out of her mouth, and drool leaked from her lips just as fast as it leaked from her pussy. Umbra whispered her wicked thought into the poor girl's ear. She nodded, a slight pant to her breath, and turned to her new master. "Collar me, Master."

"W-what?" Shining Armor asked, pausing briefly in confusion, but Silver Shield's gaze was absolute.

"Bind me, my King. Place a magical chain around my neck and make me yours in every way that matters. I want to feel you own me around my neck; I want every swallow to bulge around my neck to remind me that I belong to you. Silver Shield purred, her eyes wide with desperation.

"Listen to her; don't be so cruel as to deny her most **** desires. Bind her neck around your chain and make her yours." Umbra purred, pressing her hands on Shining's shoulders. She was the devil in his ear urging him on."

"I don't know how." He admitted; he looked so crestfallen. It was almost adorable in a way he hesitated.

“Follow my example and summon your magic. Remember, she wants to be bound—" Umbra grasped his cock firmly. “And don’t deny it; don’t pretend you're not loving this."

Shining Armor's horn glowed in its signature sky-blue magic, but he was hesitating, but Umbra was able to stoke the flames of his corrupted lust. His desires were overpowering what was remaining of his morality. "See in your mind the chain wrapping around her neck, feeling the need to conquer, to dominate. Bind the chain not just around her neck, but her heart, her body, and her soul!"

Shining nodded, unable to muster the means to speak, something holding him back. Some deep shred of shame? Or perhaps an excitement that couldn't be put into words. Or perhaps a lust that was consuming him so utterly that he simply couldn't remember how to speak, but Shining Armor began the spell. The magic shimmered in the air, like the wobbling of the knees when one was afraid or excited. The poor thing was probably both.

Despite that, the spell was steady, and it clamped around Silver Shield's neck firmly, much more firmly than Umbra was expecting. Umbra could feel his cock hardening as he did so, with a surprising ease. "For your first time, that was impressive."

She meant it sincerely as well, which surprised her all the more. The magical chain was firm and unyielding; it seemed as if, in an instant, all his shame and insecurities vanished, replaced with a certainty and resolve that would make even the most determined villains gape. Umbra should know, she was one of them. "Where did you learn to do that?"

Shining Armor's hand grasped around the magical chain, the touch like the static of a balloon. He was experimenting with his grip, getting a feel for it, like he was tip toeing into a pool, adjusting to the temperature. He took a deep sigh, attempting to exhale his lingering anxieties, to calm his raging fears.

“It’s something I’ve always known how to do, just something I’ve kept buried deep down.” Shining admitted every word out of his mouth came out quieter than the last.

“You have? So you’re a natural?” Umbra purred, resting her chin in Shining Armor’s collarbone, her right hand stroking his cock, her left feeling his balls. They were huge and heavy, each the size of tennis balls, factories producing gallon after gallon of his tremendous seed.

Umbra began to squeeze them, to toy with them in her delicate hands. Stimulating them, stimulating the arousal, the lust, the fantasies. Letting the hormones she stirred in his testicles spread through his blood and be carried into every cell in his body. Clouding his judgment, weakening his inhibitions, and corrupting his soul. "Been resisting...the urge..."

The confession came out as a pained moan, a last gasp as he tried to ignore the delighted purrs that Silver Shield was giving or the pain in a cock so **** for release. But Umbra smelled blood in the water; she clenched his cock hard enough to **** a man.

“What urge? What were you holding back, what lewd desires were you keeping secret from all of us?” Umbra demanded, her eyes slits like a tiger about to pounce.

“To use it on Cadance.” Shining Armor confessed, his crest falling as he said it. “I wanted to see her collared, chained… mine.”

“And you shall.” Umbra promised, her words soothing like poisoned honey. “Cadance will yours. She could be the first or second after Silver Shield. She'll just be your beginning of a new empire; if you were able to shake these useless inhibitions, these pointless hang-ups, then think of the power, the pleasure you'll have!"

Umbra's words sent an involuntary shudder through Shining Armor's spine. His hand gripped the magical chain around Silver Shield's neck with a vice-like grip, the other one seizing a handful of Silver Shield’s sexy ass.

Sensing what was about to happen, Umbra moved her hands from Shining Armor's cock and balls to his hips. She angled herself so her large, ebony breasts were sandwiched between his shoulders and her body pressing into his back like she was a second skin. "Be rough, be forceful, use her. Just like she wants."

Umbra took the lead, gently guiding Shining Armor’s hips to start thrusting into Silver Shield once more. Soon, though, she didn't need to guide him anymore as he started to move on his own instinct. Thrusting faster, thrusting harder, thrusting more ruthlessly. His timid eyes started to glow with a savage glare, the fire in his irises burning away all his hesitation, his hand moving from Silver Shield's ass to her tail. Yanking her tail in his right hand and her chain in his left as if they were pigtails as he thrust into her.

"Yes, yes, take it. Fuck her like the whore she is." Umbra husked, trying and failing to hide how increasingly horny she was getting, how her hard nipples were pressing into the muscled contours of Shining Armor's back, or how her gushing cunt was dripping down her legs. "Don't hold anything back; she's yours to use!"

Soon Silver Shield's eyes were rolling into her head, and her entire body was starting to convulse; it was obvious what was coming. But it was far too soon; Shining Armor was barely close to cumming, and his needs were far from fulfilled.

"NO!" Umbra screamed, her voice more shrill than she intended. "Do not disappoint your Master by cumming like a weak-willed virgin!"

But it was too late; with a final ear-splitting scream, Silver Shield's voice shattered through the heavens, and her entire body went limp as she squirted like a waterfall. She quickly collapsed to the floor, completely spent.

"Silver Shield!" Shining Armor gasped, dispelling the chain and catching his guardsmare with his left hand. Concern for his subordinate overtaking his dominant desires.

Shining Armor was able to slow Silver Shield’s fall just enough that she fell softly onto the gym floor, but she registered not a trace of discomfort. She simply let out exhausted giggles of bliss, her tongue having rolled out of her throat, and a fucked-stupid expression was plastered on her face.

As she fell, however, Shining Armor’s horn sparked in its signature blue, but this time it was more malevolent and chaotic in nature. Seemingly acting out of its own agenda, it seared towards Silver Shield's flank, burning against the guardslut as she fell ****.

Umbra’s blood-red eyes sharpened in anger. Useless! Absolutely useless! She came quicker than a teenaged virgin! Just what exactly were they training those guard mares to do? Umbra needed to act quickly so as to not let Shining Armor's concern overshadow his hormones. She couldn't afford to lose momentum, not allow his annoying conscience or pointless inhibitions.

"Oh gosh, I'm so sorry. I got carried away, I-I—"

"Pathetic," Umbra sneered, interrupting Shining Armor's rambling. She strode forward, looking down at Silver Shield like she was a stain on her heel. Shining Armor's attention turned back to her, looking as if she had committed blasphemy.

"Umbra!" He gasped in shock, but Umbra paid him no mind. "Silver Shield could be hurt."

"Perhaps..." she said, with a playful lack of concern, her blood-red eyes roaming over Silver Shield's limp body. "But I'm sure that's the least of her concerns right now... in fact I think she quite likes being hurt."

"W-what do you mean?" Shining Armor asked, his former dominance seemingly having disappeared. One step forward, it seemed, had led to another leap back; the coward still had a frustrating lack of will to truly commit, but no matter, Umbra wouldn't let him slip back into weakness. She stepped forward and knelt down and trailed two fingers against Silver Shield's flank.

"I think Silver Shield quite enjoys her new cutie mark." Umbra said with a grin, pressing her fingers against her newly seared cutie mark. The new mark was warm to the touch, like a lingering burn. The touch of her fingers was enough to send a small gasp of pain through Silver Shield's lips, which very quickly gave way to a quiet moan. Though Silver Shield simply did not have any energy left to moan loudly.

But neither Umbra nor Shining Armor paid her any attention; instead, Umbra's fingers were now tracing across the Guard's new tattoo. The original mark had been two spears crossed across each other, with a shield of the Crystal Empire plastered onto top, but now it was encircled by crystal chains. "What-I did...what?"

"You changed her mark," Umbra said, raising to her feet. Shining Armor's timidity was causing him to curl in on himself, allowing Umbra to tower over him (with the help of her platform high heels). Her blood-red eyes staring down at Shining Armor's panicking eyes. Changed her destiny; it is now her purpose. To be your servant, to serve your needs, to be your sex ****."

"We need to change her back; we need to fix it. Maybe Sunburst knows a spell...or…or." He said, babbling at a speed that would make Twilight proud, but Umbra had no patience for it. With her perfectly manicured nails, she grabbed Shining Armor by the chin and **** him to look into her piercing eyes.

"Pathetic. Are you a master or not? Do you think you can truly satisfy your wife with these half-measures?" Umbra sneered, her voice like dark thunder.

"Wife-wha-what do you mean?"

"What kind of king does not make demands of his servants? What kind of dominant master worries over his subjects? You can't be a conquering king and a timid cuck; it seems I'll need to take a personal touch."

With a firm, light shove, she pushed Shining Armor away from the pathetic mewling cunt. He fell onto his back, knees spread, his hard cock standing tall like the mast of a sailing ship. Standing proud and high, like a monument carving through the clouds. Such a wonderful specimen it was too... such a hard, virile, unattended cock...

Umbra didn't know what caused her to do what she did next; had it just been a few hours ago, she would never have ever considered such a course of action. But now it seemed natural, seemed like nothing but a logical next step in her plan. And it didn't disgust her as it once might have done; perhaps she wasn't thinking clearly, acting on instinct and impulse. Because now there was a lust stirring in her, clouding her thoughts, her pride, and her link to her past self as Sombra, but she knew her next step with absolute certainty.

She stepped over Shining Armor, one heel on either side of his torso. Shining Armor was gawking at her, standing over him like a conquering god. "If you are to rule as a king, then you need to know how to fuck a queen!"

She lowered herself, hands gripping his arms before he could lift him. Her gigantic, glorious ass slamming down on his cock, bouncing her body on his gigantic slab of cockmeat. It came naturally to her; she moved her ass with the grace of a goddess, sliding his cock in and out of her glorious cunt. It was a feeling like none other; the pleasure was absolutely overwhelming. She'd never felt so full, so fulfilled. Like her body had been built to do one thing and was now complete for the first time.

Umbra started to build momentum; for the first time, she saw her new body not as a curse but for its true potential. She had accepted its potential as a weapon already, its potential to conquer and manipulate fools like Cadance and Shining Armour, yet now it was different. Now she was starting to see why Cadance was being made a fool by her cunt; now she was starting to see how good she felt. It was like a key being unlocked around her heart or soul, unlocking a font of pleasure that had been locked all of her life.

"Fuck! This damn cock of yours, it's being wasted. You fucking fool, so timid, so scared, too naïve to see that women are fucking throwing themselves at you. "Begging to be your sex ****, you useless pansy; it's up to me to fuck some damn sense into you!" Umbra growled, throwing her head back as she bounced her ass up and down. Fuck, this was good; it was fucking good. She needed to fuck, to fuck herself on Shining Armor's cock.

"Wha-what do you—fuck—mean?" Shining Armor gasped, unable to hide how much he was enjoying it. He wasn't even making effort to hide it any more. Least of all when he let out a quiet whisper. "Please don't stop."

"Didn't intend to, my king." Umbra said with a smirk, her voice smoky and seductive. She let go of his wrists now, moving to his chest. Strong, powerful pecs that were firmer than steel in her hands, and Shining Armor was free now to move his hands to his own leisure. He wasted no time to seize two handfuls of Umbra's wonderful gigantic teats in each hand, squeezing them between them. They were firm, huge, and powerful, and he absolutely loved them.

Umbra loved it too, as she betrayed a soft purr of delight, her nipples hardening within his grip. She was doing this, really doing this, fucking the unicorn that had once been her enemy, her nemesis. And not just for power or for some kind of twisted plan, but for pleasure. For her own personal pleasure and lewd, twisted desires. To feel her blood boil with lust, her heart race with pleasure, and her pussy start dripping with arousal, she was starting to live for these moments.

But make no mistake, the dark presence was still in her heart, and her mind was still working to turn this to her advantage, to take advantage of Cadance's lewd, depraved fantasies and Shining Armor's own pathetic inadequacies. She would rise to power again; no matter what Discord did to stand in her way, she would conquer the Crystal Empire once more and rule, even if it required making Shining Armor her king as well.

"You utter fool, you like this, don't you? No, you love it, you need it, and you have no idea how much you do." Umbra pressed the palm of her hand against Shining Armor's cheeks. "But you could go further; you will go further. You're weak now, but I will reforge you, remake you into the ultimate conqueror and sex god!"

Shining Armor let out a pained shout of lust, his body betraying him, but it wasn't enough for Umbra. The fire that she had lit in his heart had threatened to be extinguished by that small relapse of timidity and hesitation but was gaining momentum once more. He lacked initiative, the will to conquer and claim that Umbra wanted to instill in him, but that flame was growing. If Umbra could push it further, throw fuel on the fire, and stoke his ego and the flames of corruption. Then...

Then he could be her right hand! Yes, that was it; that was how she'd do it; that was her plan. That was how she was going to rule the Crystal Empire once more, now to get him to comply.

"That thought makes you hard, doesn't it? It makes you so damn **** to burst. To unleash your slutty load within me, to become a conquering stud, fucking mare after mare. Your humble subjects transformed into sinful sex slaves." She could feel Shining Armor convulsing, his eyes rolling into his head, but no, he wasn't ready yet. Umbra needed more; she could get more, she could push him further, milk more from his cock, and fan the flames of corruption; she just needed more time.

Thankfully Shining himself had given her the perfect solution.

Umbra's horn lit up, her magic a blood-red in contrast to Shining Armor's sky-blue magic. She used the same spell that she had seen Shining Armor use before, the one that had denied him release. Now that same spell would be used to fuel his own torment. Shining realized what had happened almost immediately and gave a pained whine like a hurt puppy, but Umbra wasn't so easily tempted.

"Tsk, tsk, tsk." Umbra shook her head, a condescending glint in her eyes even as she rode his cock. "You think you can get release that easily? When I'm here doing all the work? All the effort? Have you even moved your hips at all? You think you can do none of the work and reap the rewards of my hard work?"

Umbra leaned in closer. "If you want to be the dominating stud your wife wants you to be, you're going to have to try harder than that!"

Shining Armor's eyes widened slowly; for him the moments seemed to last for hours as the true implication of her words slowly dawned upon him. "What?"

The simple word escaped his lips like a boulder being dropped in a lake; this was Umbra's trump card, her secret weapon that she had been hiding, waiting for the perfect opportunity. She slowed down her fucking so that Shining Armour could fully appreciate the words, not being distracted by his dick. "I found the truth about your darling wife, the secret side of herself that she keeps secret from all of you, from Twilight, from all of Equestria. Her real side."

Shining Armor's eyes were wide with disbelief; he wanted to have faith in Cadance, to believe that he knew his wife. Knew her well enough to be sure that there was no hidden side, that Umbra was simply bluffing. But Umbra knew he was doubting himself, knew that the blood red eyes of Umbra betrayed no sign of deceit or lies, because she didn't need to lie.

"You're...you're lying." He squeaked, but he had no bite to his words. He was like a fly, caught in a spider's web. Umbra gave him a fanged smile.

"I found her diary in her room. And she wrote about such wicked, evil fantasies there." Umbra purred, her words like poisoned honey. Shining Armor was squirming now, his legs wiggling as he tried to resist believing the truth. "It was quite illuminating. Knowing what exactly makes your wife tick."

Umbra's body was swerving like a snake while riding Shining Armor; her voice was almost sing-song in its approach as she delighted in mocking Shining Armor's naivety over his head. "She must have kept it hidden well, or you must have been quite naïve. Not realizing how tormented she was by lust, how desperately she craved for you to embrace that dark, twisted, lustful monster that lurks in your chest."

Umbra's fingers trailed down Shining Armor's chest, tapping on his heart. "She's dreamed every night of you taking her, of using her, of claiming her and using her as your own personal bitch. She craves you letting go of these useless morals and using her, humiliating her. The more wicked and depraved for her the better!"

Umbra's grin was wide enough to show her fangs like daggers as she continued to grind her pussy against Shining Armor's mast, relishing every time the unicorn squirmed as Umbra revealed more and more about his wife's hidden urges. "She wrote such filthy fantasies in her diary, you know, such evil, lewd desires that made even a dark queen like me blush. She talked about you parading her in the streets of the Crystal Empire, stripped in a lewd sex ****, her depravity free for the whole of the Crystal Empire to see. She craved for an image of her objectified form to be on the page of every tabloid, magazine, and article in Crystal City, in Canterlot, in the entire world!"

Shining Armor said nothing, though some strangled groans did escape his lips. The news was starting to slip through the wall of denial, restraint, and discipline he had built for himself over his entire life. A wall he'd done so much to keep steady, pushed himself so hard to maintain, was starting to crack under the dark insidious rot of the truth. Umbra had the advantage, and she knew it, so she wouldn't stop here.

"And it didn't stop with just herself either. No, your wife wanted you to have a harem, a harem empire! She wanted every mare, slut, whore, and woman creature in the Crystal Empire to see what a debased whore she was for your cock," Umbra purred, relishing every second of his awakening. "And that's not all; her fantasies aren't just limited to you, you know."

"Wha-what do you mean?" Shining Armor gasped, but they both knew that he knew exactly what she meant.

"I mean, she wants you to cheat, to claim other mares like Silver Shield here as your own." Umbra explained, her eyes glinting with maniac glee. To their side, an **** Silver Shield gave a small grunt of approval, even while in her sleep. Her body almost subconsciously knowing when her master needed her. Umbra shrugged it off and returned to her goal of corrupting Shining Armor. "And the diary didn't stop there. She wanted more, for you to go further. To conquer the world, to enslave every mare in your kingdom, even your sister...and your daughter."

"You're lying," Shining Armor said, but he didn't believe his own words. "That diary you found, it was planted, forged... maybe from somepony trying to make a scandal."

Umbra threw her head back and laughed, a piercing laugh that sent shudders through Shining Armor's spine. "You think I only read her diary? No, your wife confessed to me quite personally, especially when I was fucking her brains out."

Maybe Shining Armor knew it was coming, because he didn't look quite as surprised as he should have done, but the tears still welled up in his eyes. "Oh, don't cry now; there's nothing to be upset about. Your wife has hardly betrayed you and hardly intends to leave you. You should be glad, in fact, glad that your wife would be willing to debase herself for your sake."

Umbra leaned forward, her painted blood red lips purring against his ear. Haven't you ever found a bit of girl-on-girl hot? Two busty, beautiful mares fucking each other for your amusement. I know you enjoyed it when Silver Shield and I did it. And wouldn't you just love a threesome with Cadance? Maybe with Silver Shield? Or me? Or how about your sister Twilight? Cadance mentioned wanting you to enslave her. Or perhaps Flurry Heart when she came of age."

Umbra was striking while the iron was hot; her fantasies and triumph were overtaking any restraint or hesitation that she might have had. "Why do you think she has all your servants dressed like slutty French maids? Why do you think she insists on your guards' armor showing more skin than steel? Do you think she has a secret law all written up? One that would legalize slavery once again in the Crystal Empire? Perhaps she has some **** documents written up somewhere secret. Perhaps she's **** enough to divorce you outright and rewrite her vows as your lowly **** instead of your equal wife and—AH!"

But she'd crossed the line. Shining Armor's strength returned to him; he broke Umbra's grip on him easily as if her arms were sticks. For a second Umbra was crippled by paralyzing fear as she was thrown onto her back; she had had him exactly where she had wanted him. Trapped like a fly in her web, but now she was feeling that control shatter in a moment. The foundations of her control crumbling as she was pinned to the ground, Shining Armour's true strength lay bare as she was pressed to the floor. Shining Armor's cock was yanked out of her cunt, still wet with her cum.

But the worst part was how her heart was betraying her, beating in her chest like a drum. She could feel her vision blur from arousal, as sweat dripped down her fur. "Wha-what are you doing?"

"You...you..." Shining Armor's voice was trembling with lust and anger. His eyes were narrowed; every breath he took was one of frustrated rage. His face was turning just a little purple as his grip around Umbra's wrists squeezed with the **** of a dragon. Umbra, though, would not let him take her so easily, glaring up at him with a defiant snarl.

"Me...me..." Umbra mimicked, but she couldn't betray the fear and lust in her voice. This little snark was all she had left.

"You bitch." Shining Armor's voice was low like a dragon's snarl. He let go of Umbra's wrists but kept them pinned down with the **** of his magic. The same chaining spell she had just taught him was now being used to keep her pinned to the floor by her ankles, wrists, and neck. She was helpless to fight back; even with her restored power, she was simply overwhelmed by his pure strength. It was becoming clear just how badly she'd underestimated her.

With his magic doing the work of restraining her wrists, Shining Armor decided to instead grasp both of Umbra's tits in his hands, seizing them with an iron grip. Umbra's lips betrayed a moan, which she had to rush to hide as a snarl. Shining Armor was looking down at her; a moment's hesitation adorned his features, truly wondering what exactly he was going to do next. But there was a fire in his eyes that wasn't there before, a savagery, a lust, and a desire to take what was his.

It seemed Umbra had done her job too well, and she couldn't help but quiver in what wasn't just arousal but fear. She gave him a shaky smile that couldn't completely hide how excited she was. "This was all just a joke, you understand."

Shining Armor was pulling his hips back, and it was starting to truly dawn on Umbra just how big of a dick he had; one would be forgiven for thinking that there were smaller tree trunks in the world. It had been one thing when she was in control, one thing when she had had him pinned under her body, but she couldn't help but shudder at the thought of not being in control. Of being the one being speared with it instead of sitting on it, and that shudder wasn't totally in fear.

"You're going to pay for this!" Shining Armor snarled, his voice angry and filled with lust. He surprised Umbra by thrusting his hunk of meat not into her dripping cunt, but instead between the cleavage of her gigantic tits. His cock, still slick with the cum from Umbra's cunt, slid between her tits effortlessly, lubricating the huge tits with her own damn cum. Friction started to build up, heat rubbing between her tits, but also a heat of a more sexual orientation between her legs. She tried to sew her lips shut, to keep from betraying the truth of the feeling of her lust, but she couldn't help herself and soon found herself howling in lust. "First a warm-up."

"FUCCCCKKK!" She screamed, her head thrown back, her mouth open wide and her fanged teeth on full display. She could feel her nipples stiffen even more, like diamonds beneath Shining Armor's hands; her entire body was crying out in pleasure, making it clear that this was her place, her purpose, and her place.

For a good few minutes he kept up the pace, and Umbra was helpless to stop him and helpless to make herself want to. Her body continued to betray her; she could only howl in pleasure and lust. Her mind was turning to mush, her brain seeming to repeat only one word in her head over and over again. "Cock. Cock. Cock."

The restraints around Umbra's wrists disappeared; Shining Armor was also acting on pure instinct like Umbra had been. He seemed to know every step that he took was a natural impulse as he fell effortlessly into the role of an iron-dicked tyrant. He knew that Umbra's hands would no longer be used to resist or fight, but instead to wrap around Shining Armor's chiseled back. She spread her legs as wide as she could.

"FUCK ME!"

The words had tumbled out of her mouth without thinking, and in truth her brain was not working right. She was only concerned with one thing, and that was getting fucked as hard as she could. It was as if the rest of the world mattered for nothing; in her mind, they were not in the gym, she had never been Sombra, they had never been enemies, and Umbra wasn't anything but a slut. A slut, obsessed with this perfect, fucking cock!

"Please fuck me; ram that damn good dick inside me. Use me for your pleasure, for your lust. Fuck me until I can't walk again; ruin me until I can never think about anything else but your glorious cock. I need this, I want this, I'll do anything for this!" The words tumbled out of Umbra's mouth without her thinking about their meaning or context. They simply felt natural and normal, the simple facts of the matter. Her cock-drunk brain failed to comprehend any further meaning or reason to question them.

Nor did it seem did Shining Armor; his grin was growing wider, the savage grin of triumph. His eyes now burned with a dark fire; it reminded Umbra of Cadance's journals. He was becoming everything the princess had wanted him to be, everything Umbra had promised to turn him into. Now Umbra would be the one reaping the consequences and the rewards.

"You want to be queen, bitch? You want me to be king? To make my wife a fuckslave?" Shining Armor asked, every syllable coming out of his mouth as a savage, lustful pant. "Then get ready for it."

His cock plunged into Umbra's nether regions, her entire body sparking with joy from just the tip entering her pussy. She found her hands squeezing Shining Armor's muscled back desperately, like she was a filly holding the handles of a particularly quick roller-coaster ride. Her entire body was crashing with ripples of lust like the waves of the ocean. Waves that were growing more intense with every inch of her king's immense cock that slid in and out of her cunt.

"Fuck, oh, by the shadows!" Umbra gasped, her voice raspy and horny. She didn't know what to do or what to think. This was more than she had ever expected; she was in too deep, and did she ever want to escape? Or did she want to keep digging? "Yes, just like that."

Umbra's memories became fuzzy; she started to forget that these were just Cadance's fantasies. She forgot that this was all part of some master plan of hers. She just needed to be fucked hard.

“Fucckkk… keep fucking me, my king. I’ll be your queen, your ****, your whore, your slut. I’ll be anything you want.” Umbra’s tongue was rolling out of her throat. Her clouded mind confused and warped, she remembered journal entries talking about a mistress dominating the women in Shining Armor's life.

“Those fantasies, those slutty, sexy fantasies we spoke of? I can make them all come true if you’d let me.”

Shining Armor started to slow down his pace, much to Umbra’s frustration. But it was only because he was growing thoughtful. Umbra could practically see the gears turn in his head, even through the haze of lust his dick was subjecting her to. On one side there was his morality, his conscience, and useless inhibitions screaming at him to stop, that this had gone too far, to think for one damn second.

But that voice was growing quieter by the moment, as a second one was almost certainly taking over his mind. Growing louder and more tempting to the captain of the Royal Guard. It only had to say one word. “More. More. More!”

Shining Armor was grunting in lust and fatigue; he was close to making a decision. His warring eyes were becoming harder, more focused. His bitch-breaking cock pounding was becoming more refined, as if answering to the temptations in his soul.

“You…you...” The words came out slowly, ever so slowly. Each one being considered incredibly carefully. "You could make those dreams come true? You could make those women serve me?"

Umbra could feel his cock stiffen inside her, and Umbra's teeth flashed a fanged smile. Shining Armor might try and bury it beneath his morals, nobility, and inhibitions, but he was still a red-blooded male. Still a man with lusts and fantasies, no matter how much he tried to bury them, no matter how many cold showers he took, no matter how he might fix his eyes into a mare's eyes instead of allowing them to rest upon a mare's tits.

"All of them," Umbra whispered, her slutty moans for a moment becoming a confident purr, dripping with sensuality. "Every single one of them, any mare, any woman. Of any species, any culture, any society. Rich or poor, powerful or weak, they could all be yours."

Umbra's offers in this moment were sincere, for every word she spoke she was rewarded with a slight jerk of Shining Armor's dick, becoming stiffer, bringing her ever closer to further heights of pleasure. She needed more; it was addicting. Every word was a new height of pleasure. "Fuck, you enjoyed that, you kinky stud. Good, don't feel bad; don't feel guilty. You should embrace it; the rewards will be great."

With no small amount of effort, Umbra lunged forward. Her blood-red lips pressed against Shining Armor's lips, she tried to pour all of her restless lust into the kiss. All the desperation she felt, all the need to be fucked. "I could raise your daughter so that she'll be like her mother when she grows up, a **** lewd sex ****. I could target Twilight as well. Would you like that? Your own flesh and blood wrapping her tits around your dick? They've become quite big since becoming an alicorn, haven't they? Perhaps one day they'll match Celestia's famous pair."

She felt Shining Armor's cock thrust further, deeper than it had before. Deeper than she had thought possible and better than she had even dreamed. "FUUCK! You like that, don't you? Well, I do too? I could make it happen! Or maybe Chrysalis herself. Did you ever fuck when she pretended to be Cadance before? I think Cadance did; she was hoping she could become your **** too. I bet she was a wonderful fuck. I can tell you like big tits, and she could make them as big as you want. I could hunt her down, you know, corrupt her, one villainess to another. It takes a villain to defeat a villain."

It was true; Chrysalis might be frozen in stone right now, but Umbra could release her from her prison. Umbra could then manipulate her, perhaps prey on Chrysalis's desperation to reclaim her kingdom, perhaps lure her into thinking that Umbra had some kind of secret plan. Some kind of secret means by which she could conquer Equestria once more, luring her into a false sense of superiority. Make her think she was outsmarting them, that by submitting to Shining Armor, it would be some part of some master plan. It would be so easy.

"Fucccck..." Shining Armour groaned, squeezing Umbra's tits with a firm grip. Grasping her gigantic tits, making her his, she could feel the orgasm coming on, but she could push it further. "Yes, yes, I will. Make it happen, you slut, you absolute whore... if you can..."

Hesitation started to adorn his features; his cock slowed as he fucked her. Doubt, not in himself, but rather in Umbra herself. He wondered if she would be able to enslave the women that she said she would and if she would have the skill to make them serve him. He might be imagining a thousand possibilities of things going wrong. The truth could come out, their reputation crumbling, Celestia coming down against him and Cadance to deliver her wrath, and Twilight disowning him, Flurry Heart being taken away to be raised by someone else.

Umbra silenced those fears with another lewd, lustful kiss. "Look at dear Silver Shield and tell me I'm wrong."

Shining Armor's eyes drifted to the fucked-stupid expression of the royal guard's mare to the side, still snoring with a happy, dazed expression, cum still leaking out of her cunt or covering her tits. Her clothes were still in pieces on the floor, showing neither the intent nor the means to correct her position. Shining Armor said nothing, but it was clear that there was no disputing Umbra's simple logic.

Shining Armor was swallowing visibly, his body shaking, eyes darting between Umbra and Silver Shield. Every single thrust now started to build up momentum, as if he were using his cock as an extension of his mind. Every thrust was a sign of his growing temptation, every pierce another hint of how badly he wanted it. The harder he thrust, the firmer his cock; the deeper he pierced, each a symptom of his growing temptation, growing corruption. He was close; maybe he'd already crossed the line and only needed to admit it to himself.

Umbra was in no rush, though; every thrust inside her was a feeling like no other, and she had every intention to milk every thrust she could get from him. She crossed her legs around his waist, hugging him tightly with her hips. "And in exchange I only ask that you let me be your queen, your right-hand bitch, and your most loyal servant, and in exchange I will bring the world to its knees. I'll be your queen and make you my KING!"

That was the final nail in the coffin; it was enough to send Umbra over the edge. Her every cell started to cry out in ecstasy as her own voice rose to a fever pitch. Somepony somewhere must have heard her; she wasn't quiet. Even in a building as huge as the Crystal Palace, she was certain that there wasn't a single pony who hadn't heard her. She could even see the smallest, tiniest cracks in the crystal roof from the pitch of her squeal.

But she wasn't the only one cumming; Shining Armor had also been reaching his own climax. His tennis ball-sized testicles had been churning out vats worth of thick, creamy baby batter into Umbra's body. She barely had time to blink before her insides were painted white with his sperm, her cunt and womb seemingly burning with the white-hot flames of lust as her insides absorbed the sticky ambrosia. Shining Armor himself let out a guttural moan.

Umbra could feel her eyes start to flutter; drowsiness started to replace adrenaline as she started to come down from her lustful high. She fell to the floor, landing on her shoulder facing Shining Armor. He rolled so that they were looking at each other in the eyes, his dick still inside her. Her cunt clenched it tightly, keeping it tight inside her, squeezing it like a child hugging a teddy bear.

Umbra's brain was starting to settle, the lustful fog settling slowly, passing like a breeze with the end of the season. In its place was a gentle, comforting bliss. She wanted to stay in this moment forever, with her king's dick in her cunt and her mind fucked free of all of its worries, pride, frustrations, and anything but contentment.

Shining Armor, for his part, was panting, smiling but panting. His eyes were wide, and his mind was working slowly, as if trying to figure out what had just happened, what he'd just learned, what he'd just done, and what he'd do now. His left hand started to rub his cock, as if he were trying to make sure it all hadn't been a dream or some kind of magical illusion. "What have I just done?"

Umbra smirked, wide enough to show her sharp fangs. "Taken your first step, my dear."

Shining Armor swallowed noticeably, his eyes started trailing down Umbra's body, truly checking it out. Admiring Umbra's hourglass form, her gorgeous raven mane, impossibly large tits, perfectly framed hourglass body, shapely legs, and fuckable ass. It was a unique feeling to be checked out by this stud of an Adonis; just a few hours ago it would have been the ultimate humiliation for Umbra; now it was a weapon that she was eager to take advantage of. "Enjoying yourself?"

Shining Armor did not say anything, still so very deep in thought. His poor brow started to furrow in concentration as he started to comprehend his new reality. "So Cadance... is what you said about her true?"

"Absolutely, ask her yourself." Umbra said without a shred of doubt or hesitation. The sincerity of her words must have resonated with Shining Armor on some level since he was nodding along in understanding. "I'm sure she'll be delighted you're finally coming along."

"All this time repressing my urges..." Shining Armor muttered to himself. Before he turned back to Umbra, his furrowed frown turned into a smirk. Still it was clear he did not completely believe her. "Well, I guess that's one way to reform you, huh?"

Umbra's fanged smile turned into a frown. "What do you mean?"

"I mean, I never would have guessed. When you were Sombra, I had no idea that you swung that way. Guess Discord's curse was a bit of a blessing in disguise."

The words broke through Umbra's bliss like a thunderbolt; her mouth dropped into a small 'o.'. Her eyes went wide; her aura of invincibility disappeared as if snapped into nothingness. What was she doing? What had she done? She wasn't gay! She had no interest in guys; she was Sombra, not Umbra, wasn't she? A dark tyrant who would conquer the Crystal Empire and bring Equestria to its knees.

"Umbra? What's wrong?"

"DON'T TOUCH ME!" Umbra snarled, slapping away the hand that Shining had offered to comfort her. She couldn't let him touch her, couldn't let those same lewd thoughts enter her head again, couldn't fall back into the same habits and become that whore she was before. She couldn't lose Sombra; she couldn't become Umbra. She started to frantically shuffle away from Shining Armor like he was a lion and she was the prey. Her blood-red eyes were wide with fear. "G-Get away from me."

She pulled herself off of his dick and was horrified to find a part of her almost immediately missing it. Her magic was flung around, looking for clothes. She stitched herself a basic tank top and shorts with her magic, not bothering with panties, bras, shoes, or socks. Just the bare minimum to protect what modesty she had left; her legs were like jelly as she climbed to her feet, and she feared she might faint with every step she took or puke.

“Umbra…” Shining Armor said, his hand clasping her arm, eyes wide with concern. But Umbra didn't need his pity; she could feel her arm going as cold as ice at his touch. She was about to blast him with the full **** of her magic, but for some reason she simply couldn't remember the spell, couldn't think of the words, couldn't summon the magical power. Instead, all she could do was let out a shrill, ear-piercing scream.

The scream would be remembered in the histories of the Crystal Empire for generations; it was a scream that pierced through every wall and window of the Crystal Palace. It was a scream that made the wind howl and the skies whimper. From the center of Crystal City all the way to the outskirts of Equestria, they heard it. The ear-piercing scream of a confused Umbra.

It was enough to shatter and crack the glass of the windows and even the diamond crystals of the walls and ceiling. Little chunks of crystal debris came falling down and continued even after Shining Armor had released his grip on her arm, but it wasn't enough to end her scream. Thankfully, Umbra still had had enough self-awareness to stumble out of the gym doors and start dashing back to her room. Her scream only ended when she was safely back in her chambers.

For Shining Armor, meanwhile, he could only stand there stunned and perhaps relieved that he hadn't been deafened by the whole experience. He didn't know whether he should go after Umbra or whether doing so might leave the entire Crystal Empire nothing more than a pile of sparkling dust.

"Celestia, she can scream. I would not want to go anywhere near her until she's calmed down. " Silver Shield said, standing on wobbly legs, Shining Armor's semen dropping to the floor between her legs like a shower that had just been turned off. She had to use one of the exercise machines as leverage to stop herself from falling to the ground. "Assuming she'll ever calm down. You know it was quite the surprise for the great evil Sombra to actually be a huge lewd slut underneath."

Silver Shield started frowning as she saw the expression on Shining Armor's face, not laughing at her joke, instead simply frowning at the experience. "Um... you okay? You look startled, Master."

Shining Armor did a double take at being addressed like that. "Is that not what you wanted? Should I still be calling you "Sir," sir? I suppose I should at least in public; I just thought that in private at least we could—"

"Master is fine," Shining Armor said. His cock twitched just a little, like a dog catching the scent of meat. Not enough to become erect, but enough to twitch.

When he didn't say anything else, Silver Shield took it as her cue. "What happened? Som-Umbra was the one who encouraged me to seduce you, to offer myself as your **** and you as my master. She seemed so powerful, so in control, so...alluring. Why did she panic like that?"

Shining Armor broke into a sly, weak smile. "I think she wasn't intending to enjoy the experience quite as much as she did. I think she's having difficulty coming to terms with what she really wants. And probably hating herself for it as well."

Silver Shield smirked, throwing her arms around Shining Armor's six-pack abdomen and pressing her body against his back, her large breasts settling in between Shining Armor's shoulder blades. "It was a bit of a shock for me at first as well; I tried to suppress it so hard. But the more time I spent in this Crystal Empire, the more time I spent serving as your guard and soldier, and the more I wanted to be your **** and slut.

Silver Shield peered over Shining Armor's shoulder to see that the dick had stopped twitching and had started to grow hard once again. "Already? You certainly have a lot of junk in the trunk. You know, I don't think there's any way I'll be able to handle this alone. It seems I'm going to have **** but to share this little prize with the rest of the royal guardmares. They need to know that you're worthy. I'm sure they'll all be **** to be your slaves like me to get a taste of this prize."

Silver Shield had spoken the magic words, and Shining Armor's dick had become fully erect. Whatever fatigue or exhaustion he might have felt from his previous fuck session seemed to disappear and be replaced with a new sexual awakening and curiosity. He decided to experiment.

"****, your master is still hard. Get over here." His voice was as cool as ice, discussing the topic no differently than asking that his room be cleaned or his food be delivered to him. He could hear a breathy, lustful gasp from Silver Shield.

"Your wish is my command, my Master." She said, pulling away from her embrace and making her way to kneel at his feet. Her hand was wrapping around his behemoth of a dick, ready to serve. And serving would be all she was doing for a very long while.