Chapter 5 – Wonder Girl

The Watchtower's residential corridors hummed with the quiet efficiency of a station that never slept. Marcus walked through them with the casual arrogance of a man who had transcended his mortal origins, his godlike physique moving with predatory grace beneath the tight black uniform Zatanna had conjured for him. The fabric strained across his chest, his shoulders, the heavy bulge of his cock that never fully softened anymore—perpetually ready, perpetually demanding.

He had left Supergirl in the mess hall, a broken Kryptonian princess leaking his seed onto the floor while her cousin ate his lunch not ten feet away. The memory made him smile, made his cock twitch against his thigh. But he was hungry for more. The Signal thrummed in his pocket, enhanced now by Zatanna's magic, a constant vibration of power that whispered suggestions into the fabric of reality itself.

Marcus paused at an intersection, consulting the holographic directory. His finger traced through the roster, past the names of women already claimed—Wonder Woman in her quarters recovering from last night's exertions, Black Canary in the training levels, Zatanna organizing his expanding harem, Star Girl dancing around her cosmic pole back at Shadowcrest, Supergirl probably still crawling to clean up the mess he'd made of her.

Then he found the name he was looking for: Wonder Girl. Cassie Sandsmark. Status: Onboard. Location: Library Annex.

Cassie. The young Amazon. Diana's protégé, her sister-in-arms, the girl who had grown from an awkward teenager into a warrior in her own right. She was younger than Diana—twenty-one, fully legal but carrying that youthful energy that made conquest so sweet. She had the Amazonian build but not the millennia of experience, the divine strength without the divine jadedness. She would be tight, eager to please, desperate to prove herself worthy of her mentor's legacy.

And she would be his.

Marcus changed direction, heading for the library annex. The Signal pulsed ahead of him, preparing the way, ensuring that anyone he passed would see him as unremarkable infrastructure even as his cock strained visibly against his pants.

---

The library annex was a quiet space, dedicated to the League's extensive archives—mission logs, historical records, alien texts that required specialized translation. It occupied a corner of the residential sector, lined with shelves that held data crystals and actual paper books, a concession to heroes who preferred the tactile sensation of reading.

Cassie Sandsmark sat at one of the study tables, surrounded by texts on Themysciran battle tactics. She was dressed in her costume—the red and gold, the black Amazonian armor that left her midriff exposed, the golden eagle across her chest. Her blonde hair was pulled back in a practical ponytail, and she chewed on the end of a stylus as she read, her brow furrowed in concentration.

She was beautiful in a way that was different from Diana's regal perfection. Cassie had a girl-next-door quality, an approachability that came from growing up in the modern world rather than on an island of immortal warriors. Her body was Amazonian—strong shoulders, defined abs, powerful thighs—but softer than Diana's, still carrying the plushness of youth. Her breasts were high and firm, modest but perfectly shaped, pressing against the eagle emblem of her top.

Marcus stood in the doorway for a moment, watching her. The Signal reached out, testing her defenses, and he saw the moment it touched her consciousness—Cassie blinked, looked up from her book, her eyes finding him with confusion that quickly smoothed into neutral acceptance.

"Can I help you?" she asked, her voice young and clear.

Marcus stepped into the room, letting the door hiss shut behind him. "I hope so, Cassie. I've been looking for you."

She blinked again at the familiarity, but the Signal was already working, rewriting her perceptions, making her feel safe, making her want to please him. "Oh. Um, do I know you? Are you new to the League?"

"In a manner of speaking." Marcus moved around the table, standing beside her chair, looking down at her. From this angle, he could see down her top, see the swell of her breasts where they met the armor. "Stand up, Cassie. Let me look at you."

The command was gentle but absolute. Cassie set down her stylus and rose, her movements automatic, her eyes glazing slightly as the Signal took deeper hold. She stood before him, five-foot-ten of athletic Amazonian youth, her hands at her sides, her breathing already quickening as the Signal flooded her system with arousal and submission.

"You're beautiful," Marcus said, reaching out to touch her face. Her skin was warm, soft, the skin of a young woman in her prime. "Diana's told me about you. Her protégé. Her sister. The girl she loves like a daughter."

"Diana?" Cassie's eyes widened, confusion cutting through the haze for a moment. "You know Diana?"

"Intimately," Marcus confirmed, his hand sliding down her neck, his thumb tracing her collarbone. "She's mine now, Cassie. Just like you're going to be mine. The Signal works on Amazons, you see. It works on everyone."

"I don't understand," Cassie whispered, but she didn't pull away. Her body was already responding, her nipples hardening beneath her top, a flush spreading across her chest. "What are you doing to me? Why can't I move?"

"Because you don't want to," Marcus murmured, stepping closer, pressing his body against hers. He let her feel his hardness, the massive cock that had conquered goddesses and Kryptonians, let her feel the heat and weight of it against her stomach. "Because deep down, Cassie Sandsmark, you want to submit. You spend your life trying to be worthy of Diana, trying to live up to the Amazonian ideal. But what you really want is to be told what to do. To be owned. To be used by someone powerful enough to handle you."

"No," she breathed, but the word lacked conviction. Her eyes were locked on his, falling into the compulsion, her resistance crumbling beneath the weight of the Signal's suggestion.

"Yes," Marcus corrected, and kissed her.

It was a claiming kiss, deep and demanding, his tongue forcing its way into her mouth even as his hands roamed her body. Cassie whimpered against his lips, her hands coming up to push against his chest—weakly, uselessly—before settling on his shoulders, clutching at him as the Signal rewired her brain to crave his touch.

When he broke the kiss, she was panting, her lips swollen, her eyes hazy with desire and confusion. "Please," she whispered, though she didn't know what she was asking for.

"On your knees," Marcus commanded.

Cassie sank to the floor of the library annex, her knees hitting the carpeted surface, her face level with the straining bulge in his pants. She looked up at him with those wide, confused eyes, her blonde hair falling out of its ponytail, framing her face.

"Take it out," Marcus instructed. "Show me how a good girl welcomes her master."

Cassie's hands trembled as she reached for his zipper. The Signal was screaming in her head now, overriding her Amazonian training, her warrior's pride, her sense of self. She wanted to resist—she could feel that part of her screaming in the back of her mind—but the desire to obey was stronger, hotter, more urgent than anything she'd ever felt.

She freed his cock, and it sprang forth, massive and heavy, the tip already wet with pre-cum. Cassie's eyes went wide—she had seen diagrams in Amazonian texts, had heard whispers among the younger heroines, but she had never seen anything like this. It was enormous, thick as her wrist, veined and pulsing with power, the scent of it musky and overwhelming.

"Open your mouth," Marcus said, gripping her hair in one hand. "Show me what that pretty mouth is for."

Cassie parted her lips, and Marcus didn't give her time to adjust. He thrust forward, filling her mouth with his cock, pushing past her tongue to invade her throat. Cassie gagged, her hands coming up to push against his thighs, but he held her firm, his grip in her hair absolute.

"Relax," he commanded, and she felt her throat open, the Signal rewriting her physiology to accommodate him. "Take it all, Wonder Girl. Take your master's cock like a good little slut."

Cassie moaned around him, the vibration sending pleasure up his spine. She began to move, tentatively at first, her tongue swirling around his shaft as she found a rhythm. Marcus let her explore for a moment, let her learn the shape and taste of him, and then he took control.

He began to fuck her face, using her mouth like a pussy, pulling her head onto his cock with sharp, demanding thrusts. Cassie could only take it, her eyes watering, mascara running down her cheeks, drool spilling from her lips to coat her chin and the eagle emblem of her costume. The sound was obscene—wet, choking sounds echoing through the quiet library, the slap of his balls against her chin, her muffled whimpers of submission.

"Look at you," Marcus growled, looking down at the young Amazon warrior reduced to a cocksucking mess. "Diana's precious protégé, on her knees with a mouthful of cock. What would your sisters on Themyscira say? What would your mother say?"

Cassie moaned louder, the humiliation cutting through the haze of the Signal to spark genuine arousal. She could feel herself getting wet, her pussy throbbing with need, her body betraying her completely as he used her throat with increasing brutality.

Marcus felt his climax approaching, the tight heat of her mouth and the sight of her submission driving him toward the edge. But he wasn't done with her yet. He pulled back with a wet pop, his cock glistening with her saliva, and Cassie gasped for air, her chest heaving, her face a mess of tears and spit.

"Stand up," he ordered, helping her to her feet with a hand in her hair. "Strip. I want to see what Diana's been hiding from me."

Cassie's hands moved to her costume, fumbling with the clasps. The Amazonian armor came away piece by piece—the chest plate revealing a red sports bra beneath, the skirt falling to reveal matching red panties, the armored boots kicked off to leave her in bare feet. She stood before him in her underwear, trembling, her body flushed with arousal and shame.

"All of it," Marcus demanded.

Cassie removed the bra, her breasts spilling free—high and firm, tipped with pink nipples that were stiff with need. She was built like the athlete she was, her body a masterpiece of youthful strength and feminine curves. Her abs rippled as she pushed down her panties, revealing a blonde thatch of curls above her pussy, already glistening with her arousal.

"Turn around," Marcus commanded. "Hands on the table. Show me that Amazonian ass."

Cassie obeyed, turning to bend over the study table, her hands flat on the surface, her back arched. The position displayed her perfectly—her strong back, the flare of her hips, her ass round and firm and begging to be touched. Marcus stepped up behind her, running his hands over her cheeks, squeezing, spreading her to reveal the tight pink bud of her asshole and the wet folds of her pussy.

"Which should I take first?" he mused aloud, enjoying her whimpers as his fingers explored her. "Your pussy? You're probably a virgin, aren't you? Saving yourself for some worthy Amazonian warrior?"

"I've... I've been with boys," Cassie managed, her voice shaking. "But never... never anyone like you..."

"Never a god," Marcus corrected, positioning himself at her entrance. He rubbed the head of his cock against her folds, coating himself in her wetness, feeling her twitch and gasp at the contact. "Never a master. Never someone who could truly claim you."

He thrust forward, burying half his length in her tight pussy in one brutal stroke.

Cassie screamed. It was a sound of shock, of fullness, of being split open by something too big, too much, too perfect. Her hands scrabbled at the table surface, her knuckles white, her back arching as she tried to accommodate his size.

"So tight," Marcus groaned, gripping her hips and pulling back to thrust again, sinking deeper. "Gods, you're tight, Cassie. Even with the Signal helping, you can barely take me."

"Too big," she whimpered, her voice high and broken. "You're too big, I can't—"

"You can," Marcus snarled, beginning to move in earnest. "You will. You're an Amazon, Cassie. You're built to take cock. Built to serve men like me."

He began to pound her, using the full force of his godlike strength, each thrust driving her hips against the table edge, making her breasts bounce, making her gasp and moan with every impact. The table creaked beneath them, the ancient wood groaning under the force of their coupling.

Cassie's initial resistance melted away under the onslaught of pleasure. The Signal ensured that her body responded, that the pain transformed into sensation, that every nerve ending sang with ecstasy as he claimed her. She began to push back against him, meeting his thrusts, her Amazonian strength allowing her to take the pounding that would have shattered a normal woman.

"Yes," she moaned, her head thrown back, her blonde hair wild. "Oh god, yes, harder, please, harder—"

Marcus obliged, gripping her hair and yanking her head back as he drove into her with abandon. The sight of her—strong, proud Wonder Girl, bent over and begging for his cock—sent waves of power through him. He reached around with his free hand to grab her breast, squeezing roughly, pinching her nipple until she cried out.

"You're mine now," he growled, his pace becoming frantic, the sound of flesh meeting flesh echoing through the library like gunshots. "Say it, Cassie. Tell me who owns you."

"You own me!" she screamed, her orgasm building, her body trembling. "I'm yours, master, I'm yours—"

Marcus felt her climax rip through her, her pussy clamping down on him like a velvet vise, her muscles rippling around his shaft. He kept thrusting through it, using her body even as she came apart, driving toward his own release.

When he came, it was with the force of a storm. He buried himself to the hilt and erupted, flooding her womb with thick ropes of divine cum, marking her insides, claiming her completely. Cassie felt it—the heat, the fullness, the impossible sensation of being filled—and came again, her screams turning to sobs of pleasure as he pumped her full of his seed.

For a moment, they stayed like that—joined, panting, sweating. Marcus looked down at where they connected, at his cock buried in her stretched pussy, at the cum already leaking out around his shaft. He was still hard. He was always hard now, thanks to Zatanna's ritual and Star Girl's constant energy supply.

He pulled out, watching his cum spill from her gaping entrance, running down her thighs. Cassie collapsed forward onto the table, her body shaking, her mind shattered by the intensity of what she'd just experienced.

But Marcus wasn't done.

"On your feet," he commanded, pulling her up by her hair. "We're going for a walk."

"A... a walk?" Cassie managed, her voice slurred, her eyes glazed.

"Yes. I want to test something." Marcus positioned himself behind her again, but this time he aimed higher, pressing the head of his cock against the tight ring of her ass. "The Signal's strength. I want to see if it can hide us even while I'm carrying you through the halls, even while I'm fucking you where everyone can see."

"No," Cassie whimpered, feeling the pressure against her virgin ass. "Not there, please, I can't—"

"Quiet," Marcus commanded, and thrust forward.

Cassie screamed as he invaded her ass, her tightest hole stretching around his massive cock. It was brutal, the penetration forcing her open, making her accept him whether she was ready or not. Marcus groaned at the sensation—she was impossibly tight here, her muscles clamping down on him as he forced his way deeper.

"Gods, yes," he hissed, gripping her hips and pulling her back onto him until he was fully seated in her ass. "That's it, Cassie. Take it. Take all of it."

She was sobbing now, her face pressed against the table, her body trembling with the effort of accommodating him. But the Signal wouldn't let her resist, wouldn't let her push him out. Instead, it made her push back, made her accept the brutal anal invasion as something she wanted, something she needed.

Marcus began to move, slow, deep thrusts that dragged against her sensitive nerves, making her gasp and moan despite the pain. He reached under her to find her clit, rubbing circles around the sensitive bud, forcing pleasure to mix with the stretch of her ass being claimed.

"Good girl," he murmured, his pace increasing. "Now, wrap your legs around me. I'm going to carry you."

Cassie didn't understand, but she obeyed, her Amazonian strength allowing her to lift her legs and wrap them around his waist even as he remained buried in her ass. Marcus gripped her thighs, lifting her completely off the ground, impaled on his cock like a human fleshlight.

He turned toward the door, carrying her easily with his godlike strength, and walked out of the library annex.

---

The corridors of the Watchtower were busy in the afternoon shift. Heroes and support staff moved between stations, attending to duties, training, maintenance. Marcus walked among them with Wonder Girl impaled on his cock, her legs wrapped around his waist, her arms around his neck, her face buried in his shoulder to muffle her screams.

No one looked twice.

The Signal was working at full strength, enhanced by Zatanna's magic to bend reality itself. To the people they passed, Marcus was simply carrying something—equipment perhaps, or a colleague who'd been injured. They saw him, registered him as unimportant infrastructure, and looked away. Even when Cassie threw her head back and moaned loudly, even when Marcus bounced her on his cock with a particularly hard thrust that made her cry out, no one reacted.

Green Lantern walked past them, nodding at Marcus as if he were a maintenance worker carrying a tool bag. Batman strode by on his way to the command center, his cowl turning toward them for a fraction of a second before dismissing them as beneath his notice. A group of young heroes in training jogged past, laughing and talking, completely oblivious to the fact that Wonder Girl was being ass-fucked right in front of them.

The humiliation was exquisite. Cassie clung to Marcus, her body shaking with the dual sensations of the brutal anal pounding and the public exposure. She could feel every eye on them, even though she knew they weren't really seeing, could feel the danger of being discovered, and it made her hotter, wetter, more desperate.

"Look at them," Marcus whispered in her ear as he walked, each step jostling her on his cock, driving him deeper into her ass. "All these heroes. All this power. And none of them can save you. None of them even know you're being claimed. You're just a set of holes for me to use, Cassie. A warm place for my cock."

"Yes," she whimpered, her nails digging into his shoulders. "Yes, master, I'm just holes, I'm just your slut—"

"That's right." Marcus turned a corner, heading toward the observation deck. "And you're going to prove it. I'm going to fuck you against that glass, Cassie. Press those pretty tits against the window while I destroy your ass, and you're going to scream my name loud enough for the entire station to hear. And no one will come. No one will save you. Because you don't want to be saved. You want to be used."

Cassie moaned, the words sending her toward another climax. She was full of his cum already, her pussy leaking his seed down her thighs, and now her ass was being stretched and claimed, owned and marked. She was nothing but a vessel for his pleasure, and the knowledge sent her spiraling into orgasm.

She came hard around his cock, her ass clamping down on him, her whole body convulsing in his arms. Marcus groaned, feeling her muscles ripple around him, but he didn't cum. He was saving that for the finale.

They reached the observation deck—a vast transparent dome that looked out over the Earth, the stars, the infinite black of space. Marcus carried her to the glass wall, positioning her facing outward, her feet finding purchase on the narrow ledge that ran along the base of the window.

"Hands on the glass," he commanded, pulling back slightly before slamming forward again, driving into her ass with renewed force. "Press those tits against it. Let the universe see what you are."

Cassie placed her palms flat against the transparent polymer, her breath fogging the surface. She was facing Earth, the blue marble hanging in the void, and she imagined all the people below, going about their lives, completely unaware that Wonder Girl was being ass-fucked above them, that their protector was a slave to a god's cock.

Marcus began to thrust in earnest, pulling her hips back and driving forward, using her body with complete abandon. The position was perfect—standing doggystyle, her ass presented to him, her tits pressed against the glass, leaving smears of sweat and condensation. He could see her face reflected in the transparent surface, see the vacant, pleasure-drunk expression, the mouth open in constant moaning, the eyes rolled back.

He reached around to grab her breasts, squeezing them against the glass, mashing them flat as he pounded her ass. Cassie was screaming now, unable to contain herself, her voice echoing through the observation deck.

"Marcus! Oh god, Marcus, please, fuck me, use me, I'm yours, I'm yours—"

"Louder," he demanded, his pace becoming brutal, the sound of flesh meeting flesh like thunder in the enclosed space. "Scream my name, Wonder Girl. Let everyone know who owns you."

"MARCUS!" she shrieked, her voice carrying, her body convulsing as another orgasm ripped through her. "MARCUS, PLEASE, CUM IN ME, FILL MY ASS, MAKE ME YOURS—"

Marcus felt his own climax building, the pressure in his balls reaching critical mass. He drove into her with final, brutal thrusts, each one slamming her against the glass hard enough to leave marks, hard enough to bruise. Cassie's screams became continuous, a litany of his name and pleas for more, for him to fill her, to claim her, to make her his forever.

When he came, it was explosive. He buried himself to the hilt in her ass and erupted, pumping thick ropes of divine cum into her bowels, marking her inside just as he'd marked her pussy. The pleasure was intense, drawn out by the tight heat of her ass and the knowledge of her complete submission, her total degradation.

He kept cumming, his godlike stamina producing load after load, filling her until she was bloated with it, until it leaked out around his shaft and ran down her legs, until she was truly and completely claimed in every possible way.

Finally, spent for the moment, Marcus pulled out with a wet sound. Cassie stayed pressed against the glass, her legs shaking, unable to support herself. Cum poured from her gaping ass, running down her thighs, pooling on the floor beneath her. Her body was marked by his hands—bruises on her hips, her breasts, her neck. She looked wrecked, used, utterly defeated.

Marcus stepped back, admiring his handiwork. Wonder Girl—warrior, Amazon, heroine—stood trembling against the observation deck glass, naked and bruised and leaking his seed from both holes, her face pressed against the window as she stared out at the Earth she was supposed to protect.

"Stay there," he commanded, tucking his still-hard cock back into his pants. "Don't move. Don't clean yourself. I want you to stay exactly like that until I return."

"Yes, master," Cassie whispered, her voice hoarse from screaming, her body automatically obeying even as her mind tried to process what had been done to her.

Marcus turned and walked away, leaving her there. He passed Superman on his way out, the Man of Steel nodding politely as he entered the observation deck to check the satellite arrays. He walked right past Cassie, not seeing her, not registering the naked, cum-covered heroine pressed against the glass, her eyes vacant and her body marked as property.

Marcus smiled as he walked back toward his quarters, already thinking about who he would claim next. Power Girl would be returning from Rann soon. Hawkgirl was still in the training levels. And there were so many others—Batwoman, Mera, the women of the Teen Titans who visited occasionally.

The Signal hummed in his pocket, content and powerful, and Marcus Chen—god among heroes, master of the Justice League—walked on, ready for his next conquest.