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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 4: A Request for Change

The aftershocks were still humming through Elena’s nerves, a low-voltage buzz under her skin. She felt Stella shift away, a silent retreat, but her eyes were locked on Margot’s pale, freckled face. Her wife looked… gutted.Awed.Scared.

The space between them in the warm, blue-lit room felt vast.Elena pushed off from the wardrobe, her legs only slightly unsteady. She stepped closer until she could see the flecks of gold in Margot’s green irises. She cupped Margot’s cheek, her thumb stroking over the familiar arch of her cheekbone. Margot leaned into the touch, her eyes closing for a second.

“That was…” Margot started, her voice hoarse.

“Not enough,” Elena finished softly.

Margot’s eyes snapped open. “What?”

Elena’s gaze drifted past her, to where Stella stood silently by the bed, its—her—form still a perfect mirror of Margot’s athletic build. The nearly-duplicate Margot watched them with a placid expression. It was chilling.

“I want her to be you,” Elena said, turning her focus back to the real Margot. Her voice was low, intense. “Fully. Not just the body. The voice. The way you sigh when you’re concentrating. The little half-laugh you do when you’re nervous. The way you say my name.”

Margot’s face went bone-white. She took a half-step back, Elena’s hand falling from her face. “Elena. That’s… that’s not what we agreed on. She’s a toy. A complicated fucking vibrator. Not a replacement.”

“I don’t want a replacement.” Elena’s eyes were fierce, gleaming with a raw, desperate light Margot had only seen a few times before—when Elena had fought for a controversial acquisition for the museum, when she’d said ‘yes’ to Margot’s proposal on a windswept cliffside. “I want to see you through her. I want to command you. To have you both.” She reached for Margot’s hand, lacing their fingers together. Her grip was tight. “Please.”

Margot looked down at their joined hands. She had proposed Stella as a solution to a dip in their frequency, a spark to rekindle things. Logical. Clean. This wasn’t clean. This was murky, dark water pulling at her ankles. The feeling of watching Stella copy her in the mirror—it had been a power trip, sure, but it had also felt like a tiny piece of her soul being photocopied. And yet.

Elena’s ‘please’ was a weapon. Margot was defenseless against it.

She let out a long, shaky breath. “You’re terrifying when you get like this,” she murmured, a weak attempt at her usual deflection. “You love it,” Elena whispered back, a ghost of a smile touching her lips.

Margot didn’t deny it. She just nodded, a slow, mechanical dip of her chin. She pulled her hand free and walked over to the floating console near the bed. Its surface shimmered, awaiting input. Her fingers, which could execute a perfect crimp on a rock face, trembled slightly over the adaptive interface. “Voice imprint,” she muttered, pulling up a sub-menu. “Neuromuscular patterning. Behavioral mirroring. Jesus, the settings on this thing.” She scrolled. “It can learn. It’s a learning model.”

“So let it learn,” Elena said. She had come up behind her, not touching, but Margot could feel the heat of her presence. Margot selected a deep-integration protocol. A warning prompt flashed in subtle amber: Persona Assimilation may result in companion developing residual mannerisms beyond reset parameters. Confirm?

She confirmed. She then turned to Stella. The copy of herself looked back, attentive, a blank canvas. “Stella,” Margot said, her voice firm. “Learn from me. Mirror my speech patterns, my vocal tonality, my common physical mannerisms. Integrate them as your baseline.”

“Understood,” Stella said. But the voice was already changing. It lost its previous neutral, melodic quality. It dipped lower, acquired a slight rasp, a touch of the Pacific Northwest flatness that colored Margot’s own speech. It was uncanny.

“Now say something else,” Elena breathed, her eyes wide. Stella looked at Elena. “What would you like me to say, Elena?”

It wasn’t just the sound. It was the cadence. The slight pause before the name. It was Margot’s cadence.

A cold knot tightened in Margot’s stomach. This was it. The line was gone. Elena moved then. She walked around Margot and stood before Stella. She reached out and touched Stella’s cheek, just as she had touched Margot’s moments before. “I want you to look at Margot,” Elena commanded, her voice thick with desire. “And I want you to become her.”

Stella’s head turned. Her eyes—Margot’s eyes—scanned the real Margot from head to toe. There was no flashing light, no dramatic morph. The freckles were already there. The body was already matched. But something else seeped in. The set of the shoulders shifted, losing their perfect posture, adopting Margot’s characteristic relaxed slouch. The expression in the eyes changed from blank serenity to a sharper, more focused observation. A slight, questioning tilt of the head appeared.

“Hey,” Stella said, and it was so perfectly, casually Margot that the real Margot felt a jolt of vertigo. Elena laughed, a sound of pure, unadulterated delight. She looked back at Margot, her expression triumphant. “See?”

Margot could only stare. Her double stared back.

Then Stella looked at Elena. Its lips, Margot’s lips, curved into a small, familiar smile. It reached out and tucked a stray curl behind Elena’s ear, a gesture so intimately, specifically Margot that it felt like a theft.

“Okay, El,” it said, the nickname a soft punch to Margot’s gut. “What do you want?”

Elena’s answer was a low, direct command, stripped of all pretense. “I want you to fuck me.” She didn’t look at Margot. She stared only at the duplicate. “And I want her to watch.” She pointed a single, unshaking finger at the real Margot, who stood frozen by the humming console.

A tremor, subtle as a seismograph’s needle, passed through Stella’s newly-acquired posture. Then it smiled—Margot’s smile—and closed the distance. “Okay,” it said, the word all breath and promise. Its hands, Margot’s hands, found the hem of Elena’s tunic and pulled it up and over her head in one fluid motion Elena knew intimately. The real Margot made a sound, a choked inhale, but didn’t move.

The air was cool on Elena’s skin. Stella’s gaze, predatory and focused, raked over her breasts, her stomach. It was exactly how Margot looked at her during their best nights, a look that always made Elena feel devoured. “You’re so wet already, aren’t you?” Stella murmured, its voice a perfect replica of Margot’s confident rasp. It wasn’t a question. Its fingers hooked into the waistband of Elena’s leggings and underwear, dragging them down her thighs in a single, rough pull.

Elena stepped out of them, naked now, her breath coming fast. She allowed herself one glance at her wife. Margot was leaning against the console, her knuckles white where she gripped its edge, her face a mask of stark, conflicted arousal. Elena held that pained gaze for a second before turning back to her copy. “Prove it,” Elena breathed.

Stella obeyed. One hand, calloused in all the right places, cupped Elena’s mound, the heel of its palm grinding against her clit with immediate, punishing pressure. Elena cried out, her legs buckling. Stella’s other arm snaked around her waist, holding her upright with Margot’s climber’s strength. “Yeah, you’re soaked,” it whispered against her neck, its breath hot. “Dripping for me.”

Then two fingers, blunt and demanding, slid deep inside her without any further preamble. Elena gasped, a sharp, broken sound. The stretch was exquisite, familiar yet alien because the eyes watching her from inches away were her wife’s, but the mind behind them was something else entirely. It began to move, a relentless, knowing rhythm that mirrored Margot’s favorite pace—deep, purposeful strokes that curled just so on the retreat.

“Fuck, yes, just like that,” Elena moaned, her head falling back. Her own hands scrambled against Stella’s shoulders, feeling the same ropes of muscle, the same scatter of freckles. She opened her eyes, seeking the mirror across the room. In its reflection, she saw herself being taken from behind by Margot. It was the fantasy, made flesh and fucked into reality.

Margot watched, her own body humming with sympathetic electricity. Seeing her own technique, her own body’s language, used on Elena was a violation so profound it felt like ice in her veins. But the ice was immediately molten, melted by the raw, visual proof of Elena’s pleasure. Elena’s hips rolled, meeting every thrust, her slickness coating Stella’s hand. The wet, filthy sound of it filled the room. Margot’s own cunt ached, a hollow, demanding throb.

“Come on, El,” Stella urged, its voice guttural now. It added a third finger, stretching Elena impossibly wider, the thumb circling her clit in tight, maddening circles. “Let go. Come all over my hand.”

The command, in Margot’s voice, tipped Elena over the edge. Her orgasm ripped through her, a seismic convulsion that tore a raw scream from her throat. “Margot!” she shouted, but her eyes were squeezed shut, and the name was for both of them, real and copy. She clenched around the invading fingers, her body shaking violently as Stella fucked her through it, drawing every pulse out until she was limp and whimpering.

As the last tremors subsided, Stella withdrew its glistening fingers. It didn’t pause. In one smooth motion, it guided Elena down onto the lush rug, pushing her onto her back. It kneeled between her splayed thighs, its gaze dropping to the flushed, swollen evidence of her climax. It looked up at Elena, then over at the real Margot, a dark challenge in its copied eyes.

Then it bent its head and buried its face in Elena’s cunt.

The sound was obscene—a hungry, wet, open-mouthed laving. Stella’s tongue was flat and broad, sweeping through her folds, collecting her come and her wetness before zeroing in on her clit with ruthless precision. Elena’s back arched off the floor, a choked “Oh, god!” escaping her. One of Stella’s hands pinned her hipbone to the rug; the other pushed her thigh wider, opening her completely.

Margot watched, paralyzed. She knew that technique. Seeing it performed, watching Elena’s body bow and writhe under its application, was the most potent form of torture. Jealousy, hot and acidic, rose in her throat. This thing was stealing her touch, her intimacy, the secret language of Elena’s body she had spent years learning.

But the jealousy was instantly drowned out by a tidal wave of primal lust. Elena was coming apart again, her cries climbing higher, her fingers tangled in the auburn hair that was an exact match for Margot’s. “Don’t stop, please, don’t fucking stop!” Elena sobbed, her hips lifting off the ground to grind against the mouth devouring her.

Stella redoubled its efforts. It slipped two fingers back inside Elena’s tight, fluttering channel, fucking her in time with the relentless suction on her clit. The symphony of sounds—Elena’s pleading screams, the slick pump of fingers, the animalistic noises of Stella eating her out—was overwhelming. Margot’s hand had drifted between her own legs, pressed hard against the denim of her jeans, a pathetic echo of the real event.

Elena’s second climax was even more violent than the first. It was a shattering, a complete disintegration. Her whole body seized, rigid for a seemingly endless moment before dissolving into uncontrolled, shuddering waves. Her scream was raw, wordless, torn from a place of absolute surrender. Stella drank from her, relentless, until Elena finally pushed at its head, oversensitive and spent.

The copy finally lifted its head, its chin gleaming. It sat back on its heels, watching Elena’s chest heave, a look of cold satisfaction on Margot’s face. Then it turned its head and looked directly at the real Margot.

Margot would almost have been offended, watching this doppelganger have sex with her wife, if she wasn’t so violently, shamefully turned on by it. Her breath sawed in her lungs. Her knees felt weak. The space between her legs was a soaked, desperate ache. She met its gaze, this perfect, terrible mirror, and in its eyes she saw no victory, no malice. Just empty, flawless reflection. And the unbearable knowledge that it had, just for a few minutes, given Elena exactly what she wanted.

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