Tanya didn't answer right away. She turned, her fingers brushing the edge of the laptop screen before she pressed a key. The monitor flickered to life, casting a pale blue glow across her face. On the desk between them, the prototype case sat closed, matte black, unassuming—the kind of object that could be anything until someone opened it.
"The first version," Tanya said, her voice dropping into something slower, more deliberate, "gave women a cock." She tapped the case once, a short, precise motion. "A hundred and twenty million nerve endings, routed to the clitoris. A phantom limb that felt real because it was real. You know how that feels now."
Sofia nodded, remembering. The weight. The heat. The way it had responded like an extension of her own body, not a toy strapped on.
"The next version," Tanya said, and now her gray eyes lifted, found Sofia's, held them, "gives them a weapon."
The word landed in the small space between them. Sofia felt her pulse pick up, a slow, steady acceleration.
"I need to know," Tanya continued, leaning back in her chair, the springs creaking, her soldering-burned forearm resting on the armrest, "are you the kind of woman who wants to conquer? Or just to play?"
Sofia let the question sit. The office hummed around her—the air conditioner's drone, the distant click of a keyboard from another floor. She thought about Jake's mouth on her, the way he'd looked up at her with those hazel eyes, desperate and grateful. She thought about the video on her phone, the one she'd taken without asking. The one that proved she could make someone beautiful and broken and hers.
Her smirk hardened into something narrower, something she hadn't known her mouth could do.
"I don't know yet," she said. "But I want to find out."
Tanya's smile was slow and sharp, spreading like a cut. She reached for the case, flipped the latches, and opened it.
The new prototype sat in a foam cradle, and Sofia's breath caught before she could stop it. It was longer than the first version. Thicker. The surface was matte black, almost velvety, with a subtle grain that caught the light at certain angles. The base was wider, more substantial, with a series of small LEDs nested in a curve at the top. It looked like something engineered, not manufactured. Like it had been grown for a specific purpose.
"Neural resolution is three times the original," Tanya said, her voice warming into the cadence of someone describing a passion. "Response time is under two milliseconds. We've added pressure sensors along the full shaft, not just the tip—so you feel the stretch, the friction, the resistance, the release. And there's a feedback loop in the base that intensifies based on how deeply you're buried."
Sofia's hand moved before she told it to, reaching for the case. She stopped short, her fingers hovering above the surface.
"Can I—"
"Not yet." Tanya closed the case, the latches clicking shut. "First, I need to see what you can do."
Sofia pulled her hand back, but the heat hadn't left her fingers. She could still feel the phantom weight of it, the promise.
"The forums talk about you," Tanya said, turning to her laptop. "The girl who figured it out faster than anyone. The one who posted that calibration guide in week two."
"That was me."
"I know. I read it three times." Tanya's eyes stayed on the screen, her fingers moving across the keyboard. "You wrote about finding the balance point. About learning to trust the feedback instead of fighting it. Most people take months to get there. You did it in a week."
Sofia said nothing. The compliment sat in her chest, warm and solid, but she didn't let it show on her face.
"So when I saw your calibration data come through," Tanya continued, "I knew you were the one I wanted to test this."
"Test it how?"
Tanya's fingers paused. She looked up, and her gray eyes were cold now, clinical, the look of someone holding a scalpel.
"The first version made women feel what it's like to penetrate. The next version makes women feel what it's like to dominate." She tapped a key, and the laptop's screen changed, showing a video feed. A bare room. White walls. A single chair bolted to the floor. "I've been working on a calibration protocol that targets the user's aggression response. Most women have been conditioned their whole lives to suppress that impulse. The neural link can bypass that conditioning—if the user is willing to let it."
Sofia watched the empty room on the screen. The chair sat there, waiting. Unoccupied. But she could feel what it was for.
"You want me to try it on someone."
"I want you to try it on someone who's already yours." Tanya's gaze dropped to the phone in Sofia's hand. "The videos you took. Show me."
Ice crawled up Sofia's spine. She hadn't told Tanya about the videos. She hadn't mentioned Jake at all. The only way Tanya could know—
"Your neural calibration data included ambient audio from the first session," Tanya said, her voice flat, matter-of-fact. "I heard him. I heard what you said to him. What you made him do."
The moment stretched. Sofia could feel the weight of her phone in her pocket, the plastic warm against her thigh. She could feel the door behind her, the windows, the street below. She could leave. She could say this was too much, too fast, too strange.
Instead, she pulled out her phone, unlocked it, and handed it over.
Tanya took it without looking at her, her thumb already swiping through the gallery. Her expression didn't change as she watched the first video—Jake on his knees, his mouth around the GirlCock, his hand moving desperately on his own cock. She watched the second—the shower, the steam, the way he'd moaned when Sofia pushed inside him, the way his legs had trembled, the way he'd come without being touched.
She watched the third—the one where he was just lying there afterward, spent and naked, his chest rising and falling, his eyes half-closed, his lips parted.
Tanya set the phone down. "This will work."
She turned the laptop around, and Sofia saw that the video feed had changed. The bare room was still there, but now a figure sat in the chair—a man, mid-twenties, dark hair, stripped to the waist, his wrists secured behind his back with what looked like leather cuffs. His eyes were closed, his breathing slow and even, as if he was meditating.
"One of my interns," Tanya said. "Volunteered for the calibration trials. He's been prepped—hasn't eaten in four hours, hasn't touched himself in twenty-four. He knows what's coming."
Sofia stared at the man on the screen. He was handsome in an unremarkable way, the kind of face that would blend into a crowd. But his chest was bare, his nipples hard, his stomach tight, and there was a tremor in his thighs that told her he wasn't as calm as he looked.
"The demonstration," Tanya said, "is simple. I'm going to call him in here. He'll kneel. You're going to put on the new prototype, and you're going to use him to calibrate it."
Sofia's mouth went dry. "And then?"
"And then we see how deep the hunger goes." Tanya stood, the chair scraping against the floor. She crossed to the office door, opened it, and called out—a name Sofia didn't catch, low and short, a command more than a request.
Footsteps in the hallway. The sound of someone approaching.
The man from the screen appeared in the doorway. He was taller in person, his shoulders broad, his posture loose. He looked at Tanya first, then at Sofia, and something in his eyes shifted—recognition, maybe. Or assessment. He stepped inside, the door clicking shut behind him, and lowered himself to his knees without being told.
Sofia watched his thighs. The tremor was still there. Stronger now.
"The prototype," Tanya said, placing the case on the desk and opening it. "Put it on."
Sofia's hands were steady as she lifted the device from the foam cradle. It was heavier than the first version, denser, the surface cool and smooth against her palms. The harness was different too—wider straps, more points of contact, a control module that sat low on her hip. She unfastened her jeans, stepped out of them, and worked the harness up her legs, adjusting the straps until it sat snug against her pelvis. The base of the dildo pressed against her vulva through the fabric of her underwear, and even before she'd synced it, she could feel the potential hum of it, waiting.
"Power button," Tanya said, pointing to a small switch on the hip module. "Swipe once to sync. Hold for three seconds to pair."
Sofia pressed the power button. The LEDs on the base flickered, then settled into a steady blue pulse. She swiped the sync pad, and the world tilted.
The sensation was immediate and overwhelming—like being handed a new limb she'd always known was missing. She felt the weight of the prototype, yes, but she also felt its surface, the air moving across the shaft, the pressure of her underwear against the base. She felt the floor through it, the way her own body shifted as she adjusted her stance. And she felt something else, something that wasn't physical at all: a presence, a readiness coiled at the base of her spine, waiting to be unleashed.
"Block height," Tanya said. "Sink your weight. Feel the floor. Feel your body."
Sofia obeyed. She planted her feet, rolled her shoulders back, and let her weight settle into her hips. The prototype pulsed in response, a low, steady thrum that matched her heartbeat.
The man on his knees hadn't moved. His eyes were fixed on a point on the floor between them, his hands resting on his thighs, his breathing slow and deliberate.
"What's his name?" Sofia asked.
"Doesn't matter," Tanya said. "What matters is what you do with him."
Sofia looked down at the man. She could feel the prototype's weight, its length, its purpose. She could feel the question Tanya had asked circling back: conquer or play?
She stepped forward, and the man's eyes lifted to meet hers.
"Open your mouth," she said.
He did.
The demonstration took twenty minutes. By the end, the man's lip was split, his knees were raw from the carpet, and his cock was hard and leaking and untouched, his hands still bound behind his back. Sofia had made him beg, made him count, made him thank her for every inch she gave him. She'd taken him deep and slow, then fast and punishing, and every time he thought he understood the rhythm, she broke it. His breath was ragged, his chest heaving, his eyes wet—not from pain, but from the sheer overwhelming weight of being seen, being used, being wanted as a thing and not a person.
Sofia pulled out, the prototype sliding free with a wet sound, and the man let out a sound that was half-moan, half-sob. His cock jerked, untouched, and a thin trail of precum dripped to the carpet.
"Good," Tanya said, her voice soft, almost reverent. "Very good."
Sofia stepped back, her thighs shaking, her heart hammering. She could feel the prototype still, its presence an extension of her own hunger, and she knew—she knew—that she wasn't done.
"I want to take it to my place," she said, her voice coming out rougher than she expected. "I want to start right now."
Tanya's smile widened. "I was hoping you'd say that."
They left the man on the floor, still kneeling, still bound, his mouth open and empty.
The ride to Sofia's apartment was short, five minutes in Tanya's car, the prototype humming against Sofia's pelvis the whole way. She didn't mention Jake. She didn't know if Tanya had assumed she lived alone, or if she simply didn't care. Either way, she'd find out soon enough.
Sofia's key turned in the lock. The door swung open.
The apartment was dim, the curtains still drawn from the morning. The air smelled like sex and steam and something sweeter underneath—Jake's shampoo, maybe, or the cheap soap from her shower.
And there he was.
Jake was sitting on the edge of her bed, wrapped in a towel, his hair still damp, his wireframe glasses perched crookedly on his nose. He looked up when the door opened, and his face cycled through confusion, relief, and then something else—uncertainty—when he saw Tanya behind her.
"Sofia," he said, standing, the towel shifting. "I didn't know—I thought—where did you—"
His voice trailed off when he saw the harness. The prototype. The matte black length of it, still slick from the demonstration, still hard against her thigh.
"Who's this?" he asked, his voice smaller now.
Sofia didn't answer. She crossed the room in three strides, her hand finding his wrist before he could step back, her grip firm and unyielding.
"Jake," she said, and his name in her mouth felt different now—heavier, like she was claiming it. "This is Tanya. She's the one who made the GirlCock."
Jake's eyes went wide. He tried to pull his wrist free, but Sofia held on.
"She made—"
"The next version." Sofia's free hand found the towel, pulled it loose. It fell to the floor, and Jake stood naked, his lean body bare, his cock half-hard from the confusion and the proximity and the fear. "And she's going to help me test it."
"Test it how?" Jake's voice cracked. He looked at Tanya, then back at Sofia, and Sofia saw the moment he understood—the moment he saw the videos, the shower, the leaving, the meeting, and the return all click into place.
"Sofia." His voice was barely a whisper. "What did you tell her?"
Sofia didn't answer. She turned him, one hand on his shoulder, pushing until his knees hit the edge of the bed and he dropped onto the mattress, naked and exposed, his hands instinctively moving to cover himself.
"Don't," Sofia said, and her voice was flat, cold, the same voice she'd used on the man in the office. "Hands on your head."
Jake hesitated. His hazel eyes found hers, searching for something—permission, mercy, the girl who'd let him stay the night. He didn't find it.
Slowly, his hands rose. They settled on his head, fingers laced, elbows out. The position made his ribs stand out, his chest bare, his cock fully visible now, hardening despite the fear in his eyes.
Tanya stepped into the room, her gaze moving over Jake's body with the same clinical intensity she'd given the prototype. She didn't touch him. She just looked, and her looking was already a kind of possession.
"He shaves," she said, and there was approval in her voice. "Clean lines. Good discipline."
"He started doing it for the trends," Sofia said. "But he kept doing it for himself."
Jake's face flushed, a deep red spreading from his neck to his cheeks. "Can we please—I don't understand what's—"
"You're going to help us calibrate the new prototype," Sofia said, stepping closer, her hand finding his jaw, tilting his face up. "You're going to let Tanya see what you can take. And you're going to be good, Jake. Because I know you want to be good."
His breath hitched. His cock was fully hard now, a thin bead of precum at the tip, and his hands stayed on his head, and his eyes stayed on hers, and he didn't say no.
Tanya moved to the bed, her weight dipping the mattress as she sat down beside him. She reached out, her calloused fingers tracing down his chest, over his stomach, stopping just above his cock.
"You've done this before," she said. It wasn't a question.
Jake nodded, his throat working.
"With her."
Another nod.
"Good." Tanya's hand dropped lower, her fingers wrapping around his cock, feeling its weight, its heat. "Then you know how this works. You're not in control. You're not going to be in control. And when you come, it's going to be because she decides you can."
Jake let out a sound—half-whimper, half-moan—and his hips twitched, pressing into her grip before he caught himself.
Sofia watched. The prototype pulsed against her, the feedback loop responding to her arousal, her dominance, the heat pooling in her chest and between her legs. She reached down, wrapped her hand around the base of the prototype, and stepped between Jake's knees.
"Look at me," she said.
His eyes found hers. They were wet now, his lips parted, his breath coming in short, shallow gasps.
"You're going to beg," she said. "And when you've begged enough, we're going to take you apart."
She didn't touch him with the prototype. Not yet. She held it there, the tip brushing his thigh, letting him feel the heat of it, the size, the difference from the version he already knew.
"Please," he said, and his voice broke on the word. "Please, Sofia."
The story turn arrived in the space between his plea and her answer. Jake had submitted before, taken her cock, let her use him. But this was different. This time he wasn't alone with her, wasn't protected by the intimacy of the morning or the memory of being kept. Tanya was there. Tanya had seen him bare. Tanya had touched him like a specimen, and he had let her.
Jake was no longer someone who could go home and tell himself this was just a kink, just a trend, just something he was trying. He was now someone who had begged in front of a stranger. Someone who had been displayed and assessed and found useful.
That couldn't be undone.
Sofia saw it in his eyes—the moment he realized he wasn't going to say no. Wasn't going to ask her to stop. Wasn't going to protect the last piece of himself he'd been holding back.
"Good boy," she said, and she pressed the prototype against his lips. "Open."
He opened.
Tanya's hand left his cock, moving to his hip, steadying him as Sofia pushed forward. The prototype slid past his lips, over his tongue, and the sound he made—desperate, grateful, broken—filled the room.
Sofia let herself feel it. The heat of his mouth, the resistance of his throat, the feedback loop sending waves of sensation through her own body, amplified and sharpened by the new neural resolution. She could feel his pulse against the shaft. She could feel the tremor in his jaw. She could feel every millimeter of his surrender.
And she knew, with the cold certainty of someone watching a system work exactly as designed, that this was only the beginning.
She looked over at Tanya, who was watching the scene with the focused satisfaction of an engineer seeing her creation perform. Their eyes met, and Tanya smiled—slow and sharp and hungry—and Sofia smiled back.
The new version was working.
And Jake was theirs.