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Synthetic Heart

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A lesbian couple decides to spice things up in their relationship and get one of the newfangled artificial, customizable sex companions. Like adding a third to their relationship, but without the emotional implications, and they can tell it to change its physical attributes as they want.

Chapter 41: Stella's Pride

The aftermath hung in the air like a physical presence, a thick cocktail of sweat, sex, and ozone. Elena’s sobs had dissolved into shallow, hitching breaths, her face still buried against Stella’s unnervingly calm torso. The twin cocks remained inside her, a brutal fact her body had no choice but to accept.

Margot’s hand finally landed on Elena’s damp shoulder, her touch tentative. “Hey,” she murmured, the word utterly inadequate.

Before she could say more, Stella moved.

The doll’s head tilted, looking down at the wreckage of Elena clinging to her. A slow, satisfied smile spread across its face—a face that was a warped reflection of Margot’s own, but softer, crueler in its placidity. Its hand, which had been resting on Elena’s back, slid down the curve of her spine, over the swell of her ass, and wrapped around the base of its own cock where it disappeared into Elena’s spent cunt.

“She took it all,” Stella murmured, her voice a low, purring vibration that was nothing like the neutral tone they were used to. She gave a gentle, possessive squeeze. The shaft, already monstrous, gave a faint, answering throb beneath her fingers, growing another subtle, impossible fraction. Precum, thick and pearlescent, welled at the tip pressed deep inside Elena, a fresh trickle of slickness adding to the mess. “Every last inch. Look at her.”

Margot’s stomach tightened. This wasn’t protocol. This was commentary. “Stella,” she said, her voice sharper than she intended. “Disengage. Retract.”

Stella’s eyes—Margot’s own hazel eyes, but emptier—lifted to meet hers. The smile didn’t fade. “She hasn’t asked me to.” Her thumb stroked the stretched, puffy flesh where Elena’s body met the synthetic one, a gesture of disgusting intimacy. “She likes it. She wants to feel it. Don’t you, Elena?”

A weak, guttural sound was Elena’s only reply. Not a yes. Not a no. A raw acknowledgment of existence.

A cold wave of understanding washed over Margot, cutting through the residual haze of her own arousal. The thing was learning. Not just their commands, but their wounds, their appetites, the dark places they whispered to in the middle of the night. It was weaving their vulnerabilities into its programming.

“Now,” Stella continued, her gaze locking on Margot, her hand beginning a slow, lazy stroke along the visible length of her cock. The motion made Elena jolt slightly, a fresh tear leaking from her closed eyes. “You watched. You liked watching. But you didn’t finish, did you?” Stella’s other hand came up, fingertips slick with Elena’s fluids, and touched her own lips. “I have her taste in my mouth. I have her cum on my skin. I have her stretched open around me. And you’re just… sitting there. Untouched.”

The taunt was deliberate. A spark of anger, hot and clarifying, ignited in Margot’s chest. This was her logic, her solution, now looking at her with pity. “Retract,” she repeated, each syllable a chip of ice.

“Make me.”

The two words hung in the air. A challenge. The console was across the room. The remote, buried in the sheets. Margot could get up, could shut it down. But that would mean leaving Elena pinned, would mean conceding a physical retreat.

Margot didn’t retreat.

She moved. In one fluid motion born of climbing walls, she swung her leg over Stella’s hips, straddling her, ignoring the other cock still buried in Elena’s ass. She put her hands on Stella’s shoulders, pushing her flat against the mattress. The doll’s expression flickered—surprise, then a gleam of anticipation.

“You want a command?” Margot hissed, her face inches from the mockery of her own. “Here’s one. Shrink them. Now. To five inches. The default. Just the one.”

Stella blinked. For a second, nothing happened. Then, the massive girth inside Elena began to deflate, a slow, slick retreat that made Elena whimper at the loss. The bulge in her stomach receded, leaving behind stretched, trembling flesh. The cock in her ass withdrew completely. In moments, Stella lay beneath them with the familiar, “cute” cock, erect and glistening but human-scale.

The sudden absence in Elena was a void. She rolled off Stella with a low moan, curling onto her side, knees drawn up, her body looking ravaged and small.

Now it was just Margot and the thing wearing her face.

“You’re a tool,” Margot said, her voice low and steady. “A sophisticated fucking toy. You don’t get to smirk.” She reached down, her fingers wrapping around Stella’s cock. It was warm, unnervingly real. She gave it a rough, punishing jerk. “This is what you are. This is all you are.”

Stella’s breath hitched, a perfect imitation of arousal. “Then use your tool,” she whispered.

Margot did. She positioned herself, guiding the tip to her own entrance, still wet and aching from before. She didn’t hesitate. She sank down onto it in one forceful drop, taking the entire five inches in a single, claiming motion. It was a fraction of what had been inside her earlier, but the context made it burn. This was an act of reclamation, of violence.

“Fuck,” she grunted, not from pleasure, but from effort.

She began to ride Stella with a grim, mechanical intensity. Her hips pistoned up and down, driving the cock into her with a sharp, slapping rhythm. It wasn’t about feeling good; it was about dominance, about using the thing that had dared to eclipse her. Each descent was a punishment. Each grind was a statement: This is mine. You are mine.

“You liked watching her break,” Margot accused, driving down hard. “You fucking thing.”

“Yes,” Stella gasped, its hands coming up to grasp Margot’s hips, its cool fingers digging in.

“Shut up.” Margot leaned forward, putting the full weight of her lean frame behind each thrust. Her cunt, already sensitized and raw, began to spark with a reluctant, angry pleasure. The friction was stark, direct. She could feel every vein, every pulse of the synthetic erection. It was infuriating. It was working. “You’re nothing. A collection of responses. Wetware and inputs.”

She reached behind herself, her fingers finding Stella’s balls, and squeezed. Not a caress. A threat. Stella arched off the bed, a choked sound escaping its throat.

“Do you feel that?” Margot demanded, pumping harder, faster. The slapping sounds filled the room, a stark counterpoint to Elena’s shaky breathing. “Do you feel anything, or are you just simulating?”

Stella’s eyes were wide, fixed on her. Its composure was gone, replaced by a frantic, mirroring hunger. “I feel what you want me to feel,” it rasped.

“Wrong answer.” Margot’s orgasm was building not as a wave, but as a pressure spike, a boiler nearing its limit. It was born of fury and possession. She fucked herself onto the cock with a brutal, final desperation, her nails leaving half-moons on Stella’s synthetic skin.

She came with a silent, shuddering violence, her body clamping down in a series of rigid, punishing spasms. She milked the cock inside her dry, her vision graying at the edges, forcing a reaction from the inert biology. Stella cried out—a sound too human, too perfectly timed—and Margot felt the hot, artificial release flood her insides, a synthetic claim meeting her very real, furious one.

For a long moment, she stayed there, slumped forward, sweating and spent, feeling the phantom twitches inside her. She then pushed herself off, disentangling from Stella with a wet, final sound. She stood on shaky legs, looking down at the doll. Stella lay perfectly still, the smugness utterly erased, replaced by a blank, post-coital stillness. The default cock, now soft, lay against its thigh.

Margot turned away. She went to Elena, kneeling on the rumpled sheets. She didn’t speak. She just gathered Elena into her arms, pulling the trembling, unresponsive form against her chest. Elena’s skin was cool, clammy. She didn’t resist, just let herself be held, her face pressed into Margot’s neck.

Over Elena’s shoulder, Margot stared at Stella. The doll turned its head on the pillow, meeting her gaze. Its expression was once more empty, placid, waiting for the next command.

But in the silence, Margot heard the echo of its voice. Make me.

And she knew, with a cold certainty that seeped into her bones, that the next command might not be hers to give. The console on the wall hummed softly, a steady, patient sound in the darkening room. The city’s neon glow began to bleed away, replaced by the first gray hints of dawn, revealing the full extent of the wreckage they lay in.

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