The next week

Spike had immediately agreed to the list of reforms when Cadence and Starlight presented the list to him. Starlight even suspected he was relieved that the list appeared to be a bunch of minor things to do with the school. Like the ceiling fan being fixed, or the books being more interesting. Spike didn’t feel any need to comment on it and freely used his power to help them.

"Okay so from now on is everything on this list true?" He had said, but as Cadence mentioned his wording was important. According to her, the changes were normally somewhat retroactive but this time that won’t be the case. That being the changes won’t have a retroactive effect and will be noticed by the other ponies.

“Strange how that works isn’t it? Things changing retroactively,” Starlight pointed out as she and Cadence discussed it after leaving the room. “You never know what could have changed. Was I still a reformed villain before the changes?”

“You were,” Cadence assured her. “It seems the Root of Honesty tries to keep the butterfly effect to a minimum. Despite becoming the Princess of Lust I’m still married to Shining Armor for instance.”

“Huh weird.” Starlight thought to herself. Before yawning to herself. “Did we really spend the whole day coming up with those changes?”

Cadence glanced outside and saw that indeed Celestia was now lowering the sun. "Time passes whilst you're having fun."

"Yeah suppose so..." Starlight trailed off as she thought back to the room, and of Spike himself. Had he always been so strong? So gentle? So powerful? Starlight shook her head to get the thoughts out. She was sure it would just disappear over time.

Yet it didn’t. Not even when Starlight went to bed did the thoughts of the drake leave her mind. Instead, they grew in extremity and vividness, cursing Starlight with no sleep. She tossed and turned in her bed at night, but each time found sleep to elude her. Instead, her mind wondered what it would be like for him to control her, to dominate her, to fuck her.

"Fuck why is it so hot?" Starlight screamed into her pillow. Her hands clutched the fabric which had been drenched in her sweat. She couldn't get rid of the thoughts, ever since she had gotten the list changed. “Did one of the changes do something?”

Maybe the dragon one, making no pony in Ponyville bigoted against dragons. Did Starlight have some deep-seated bigotry hiding her attraction to Spike? She felt ashamed and confused. Hadn’t she had a crush on Trixie? She still did, didn’t she? Her feelings for Spike were more lust than love. Right?

‘Maybe Trixie and I could pleasure Spike together.’ She thought to herself, before immediately freezing. ‘Since when did she have thoughts like that?’

But they were addicting, and soon Starlight was finding her fingers worming their way towards her **** pussy. Starlight couldn’t resist any longer as she plunged her fingers into her dripping snatch and imagined her and all her friends as sex slaves.

‘Forgive me, Trixie.’ She thought to herself as she masturbated sinfully to the thoughts of her, her best friend and all their friends as sex slaves to their Master Spike. She soon found herself unable to stop her self-pleasure. She just came and came until she masturbated herself to sleep.

The memories of which still clouded Starlight’s mind with guilt and shame the next day when she headed off to Trixie’s. Intent on apologising to her friend for her sinful thoughts and acts the last night.

Walking up to the cabin Starlight found herself muttering aloud her anxious thoughts. “Oh, what do I say? What would Twilight do?”

She tried to picture her slutty mentor giving her advice. “Ask her to join in, and go straight to Spike.’

“What would anypony BUT Twilight do? Do I go in and say ‘Hi Trixie sorry but I totally got off on the thought of you and me being sex slaves to Spike last night, we cool?’”

She found herself sick to the stomach at the thought, able to do little but sigh to herself. Arriving at the cabin she held her hand one inch away from the door, ready to knock.

“She’s your friend Starlight. She forgave you for being a cult leader, and for destroying the timeline several times... and for the whole anger incident. She’ll forgive you for this too.” She assured herself before her voice became a timid squeak. “I hope.”

She knocked. “The door to the dwelling of the SEXY AND SENSUAL TRIXIE is open.”

‘Sexy and sensual?’ Starlight wondered to herself. What was going on?

Entering the room Starlight found that something was very, very wrong with her friend, her old outfit while never prudish was still enough to conceal. More flashy than exhibitionist. Now however her entire wardrobe oozed sex appeal, with enticing fishnet stockings, her skirt gone replaced by a pair of black panties. Her corset now only covered her belly so that her heavy breasts could be freely exposed, held only by a black bra. Above which was nothing but a necktie, cuffs, and a new smaller top hat to accentuate her beautiful hair and whorish makeup.

“Trixie?” She squealed, finding herself stammering for words. Eyes darting around the room, trying to avoid checking out her best friend, crush and right now complete bombshell. “What are you wearing?”

“Oh, Starlight it’s wonderful, absolutely terrific,” She purred with the happiest smile she had ever worn. "Trixie has finally found her true calling."

Starlight's eyebrows rose, as her eyes darted around sceptically. "What happened to your old calling?”

“Trixie’s old calling wasn’t going anywhere. For you see this humble and meek magician’s great talents were going to waste. Few ponies were attending her shows, and even fewer recognized her brilliance," Trixie declared her voice adopting her signature tone of grandeur. Before reaching one of her hands to pull Starlight into what she was sure was supposed to be a platonic hug. “Except of course her wise, intelligent and beautiful best friend.”

From a combination of arousal from being pressed against her best friend’s very exposed outfit and from her crush calling her 'beautiful', Starlight felt her face glowing a deep shade of crimson.

"But then in Trixie's darkest hour she was set upon an idea of pure genius. If the ungrateful townsfolk would not see her genius then she would need to enter a new market. To move to a new direction the Great and Powerful Trixie became the SEXY AND SENSUAL TRIXIE!” Trixie explained as she began pacing around the room with a certain glee. “The new Trixie was to leave the collapsing market of street performance and into the wide world of adult entertainment.”

“Adult entertainment? Trixie, you didn’t go into porn did you?” Starlight asked with no great shortage of worry.

“Adult entertainment Starlight,” Trixie hissed, before smiling. “But yes Trixie took advantage of her sexy, curvy and beautiful body and allowed the wider masses to tantalize her flesh and drool over her amazing form. Online my video has already touched the hearts of millions of viewers. Now the sexy and sensual Trixie is now a STAR in the world of adult entertainment."

"Trixie you're a porn star?" Starlight gasped as she grabbed her phone.

“Indeed I am Starlight. Perhaps you caught my debut. Was it sexy? Was it hot? Did you masturbate to it?” Trixie asked with all the curiosity that Rarity might have when presenting a new dress or Rainbow Dash might show when discussing the wonderbolts.

At this point, Starlight was wondering if Trixie would even care about the truth about what happened last night. “I may have masturbated to the thought of you last night.”

Trixie’s eyes rounded, and Starlight braced herself for the rug to be pulled out from underneath her. For this to be revealed as a joke or a prank that Starlight had made far too personal, and far too perverted. But then Trixie smiled and began to laugh. A relieved, excited laugh gave way to her usual arrogant facade. “Of course you did. No mare nor stallion can resist the fantastic body of the SEXY AND SENSUAL TRIXIE!”

Blushing Starlight could only find herself nodding. Too in shock to do anything but nod along. An attitude she continued to maintain whilst Trixie offered a sleepover and she got to film her next video. Too in shock to admire Trixie’s unbelievable talent and skill.

Too in shock that when several days passed she wasn’t quite prepared when Sweetie Belle appeared behind her as she walked back to the Castle of Friendship leaving her spinning so fast that she found herself tumbling to the ground in shock.

"Starlight are you okay?" Sweetie Belle gasped in concern, offering a hand that Starlight eagerly accepted.

"Yeah sorry, Sweetie Belle I've just been stuck in my mind," She admitted as she pulled herself to her feet. The younger sister of Rarity frowned in concern.

“Can I help?” She asked innocently but Starlight found herself shaking her head at the young girl.

"No, I guess it's something you have to deal with yourself,” Starlight admitted, finding herself exhausted. “Sorry about that Sweetie Belle how are you?”

“Erm, I’ve been looking for you Starlight. I have something I want to ask you," Sweetie Belle said as she snaked a foot behind the other, holding her hands behind her back and widening her eyes. Like a child weaponizing their cuteness for material gain. “I’ve been wanting to ask you something.”

“Ask me what?” Starlight asked, eyes narrowing as she was sensing the danger.

“It’s about my cutie mark, I heard you can change them.” She explained, subtly lifting her skirt to display her cutie mark of a shield and a song note. “And I want you to change mine.”

“Wa-WHAT?” Starlight squealed as if Sweetie Belle had confessed that she'd killed someone. "But you worked so hard on it. Why would you?"

Sweetie Belle's gaze shifted to the side. "But it's not who I am, what I really am deep down. Sure I'm a crusader but there’s something more to me deep down.”

“What is it?” Starlight asked, genuinely curious now.

Sweetie Belle’s hands covered her mouth like a child. “You promise to tell nopony. Especially Rarity."

"I promise," Starlight said, but Sweetie Belle shook her head.

"Pinkie promise,” she demanded, causing Starlight to sigh at the childish promise.

"Cross my heart and hope to fly, stick a cupcake in my eye." She groaned, miming the motions as she did so. Even with the sacred Pinkie promise made however Sweetie Belle remained **** to share.

"I feel like deep down I'm a ****, but not just any **** but a sex ****." She gasped, as if every word she spoke were spoken with her final gasps of air.

Starlight should have been concerned, but instead, she found herself fascinated. "Tell me more."

"I feel like there's a side of me, deep inside whose my real self. Who wants to get out and be Rarity's sex ****. To be used, abused, traded and-" Sweetie Belle gasped before turning beet red. "I've said too much... I should just go."

"Wait," Starlight said, placing two hands on each of Sweetie Belle's shoulders. It was as if Starlight was possessed with a mad longing for this fantasy. For the idea of Sweetie Belle, everypony she knew and even herself to be sex slaves serving a great master. "I know this is wrong but-"

Her horn lit up and the shield on Sweetie Belle's face disappeared instead replaced with an image of Sweetie Belle's upper body. Her hands were behind her back, her breasts freely exposed, a black collar and chain around her neck as her face lit up in red lust as her tongue drooled out her mouth in sinful delight.

"Let everypony know your cutie mark is that of a sex ****," Starlight said with a grin of sadistic delight. Sweetie Belle for her part simply hugged Starlight, dropped her skirt back down and ran off with a spring to her step. Starlight however was giddy with an evil delight. Her sinful mind thinking of all the new ways could pervert her new power.

It was when a week had passed since the changes had first come into effect that Starlight realized something. One of Cadence's changes was supposed to make sure she was responsible with her power, but what she just did was far from responsible. Which meant...

"CADENCE!"

A/N: Bear in mind that the future art of Sweetie Belle may still have her cutie mark the same. Since I can't draw for shit that's just going to have to be tolerated.

The next chapter will be a vote chapter, if you want to put a candidate on the list post it here. Remember limit it to Ponyville, they'll be options for characters outside of Ponyville only once the mane six have all been inducted (Rarity will be last).

Also after this chapter, I can't justify not putting Trixie on, so she's already on the list. Also, this was my longest chapter yet.