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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 36: A Shared Passion

The sharp, clean scent of citrus oil and damp skin filled the room. Margot stood in the doorway, the bath towel clenched in her fist, her knuckles white. The sight before her was a perfectly composed image of debauchery, and it hit her with a physical force.Stella, in her enhanced-Margot template, moved with a machined rhythm. Her hips drove forward, her cock sliding in and out of Elena’s slick cunt. Elena was lost beneath her, her long black hair a wild corona on the pillow, her mouth a soft ‘o’ of pleasure, her full breasts swaying with each thrust. A soft, continuous moan vibrated in Elena’s throat.

Arousal, hot and instantaneous, flooded Margot’s core.It was laced with something sharper, more acidic.A possessive thrill. This was her template, her idea, fucking the love of her life with a brutal, flawless efficiency. She saw the way Elena’s fingers dug into Stella’s synth-skin shoulders, the desperate arch of her spine. She had done this.She had built this moment.The towel dropped to the floor.

Margot moved on silent feet, the cool polished concrete a shock against her soles. She climbed onto the bed, the memory foam yielding, and slid up alongside Elena’s heated body. She didn’t look at Stella; she looked only at Elena’s face, at the flutter of her eyelashes, the parted lips.She captured Elena’s mouth in a kiss that was all teeth and claiming tongue.

Elena moaned into it, her hands leaving Stella to tangle in Margot’s short, damp hair.The kiss was a messy counterpoint to Stella’s mechanical fucking. Margot could taste herself on Elena’s tongue, the faint echo of her own cunt, and underneath it, something sterile.Ozone.The taste of the companion.

“Look at you,” Margot breathed, breaking the kiss, her lips grazing Elena’s cheek.“Taking it so well. Taking my cock.”

Elena’s eyes flew open, hazy with pleasure. “It’s not yours,” she gasped, as Stella’s thrusts picked up pace, jolting her words.

“It’s whatever I say it is,” Margot whispered, her hand sliding down Elena’s quivering stomach, through the coarse damp hair, finding the swollen, slippery nub of her clit. It was hot as a brand.Margot pressed her thumb against it, rubbing in tight, unforgiving circles. “And I say it’s mine. I say you’re coming on my cock.”

The dual sensations were overwhelming. The deep, filling stretch of Stella’s relentless pistoning, and the sharp, focused fire of Margot’s thumb on her clit. Elena’s body began to coil, a spring wound too tight.Her cunt fluttered wildly around the invading shaft.

“I want to feel it,” Margot hissed, her own breath coming fast now. She was wet, aching, but this was her role.The director.The witness.“I want to feel you squeeze it. Come on, baby. Show me how much you love it.”

Elena’s back arched clear off the bed, a strained, silent scream stretching her features. Then sound erupted—a raw, torn cry as the orgasm ripped through her. Her inner muscles clamped down on Stella’s cock in a vicious, rhythmic pulsation, a greedy milking motion. Stella, to her credit, did not stop. She maintained her pace, fucking Elena through the convulsions, the wet slaps of skin on skin turning slicker, louder.

The convulsions subsided into a deep, trembling exhaustion, but the thick, insistent presence inside her did not soften. Elena’s hips still twitched with aftershocks, her cunt fluttering weakly around the shaft. She blinked, her vision clearing to see Margot’s fever-bright eyes watching her, and above, Stella’s placid, attentive face.

“Don’t stop,” Elena rasped, her voice raw. Her hand slid down her own sweat-slicked stomach, past Margot’s still hand, until her fingers brushed the base of Stella’s cock where it disappeared into her. She felt the solid, unyielding heat of it, the faint thrum of artificial life. “It’s still so hard.”

She looked up at Stella, whose head tilted slightly. “I can maintain this state indefinitely,” Stella said, her tone devoid of pride, a simple statement of function.

A reckless, hungry curiosity cut through Elena’s satiation. This was her canvas. “Make it longer,” Elena said, the command clear.

Margot’s breath hitched. “Elena…”

“Make it longer,” Elena repeated, locking eyes with Stella. “I want it deeper. I want to feel how deep you can go.”

Stella gave a single, slow nod. “You may be surprised.”

A low, visceral tension gathered in the room. The sensation began as a profound pressure, then a slow, impossible expansion. Elena gasped, her mouth falling open. She could feel it, the internal stretch surpassing any natural limit, the shaft thickening and lengthening within her in a smooth, continuous glide. It wasn’t painful; it was a terrifying, full reclamation of every hollow space inside her.

Margot watched, transfixed, as the visible length of cock between Stella and Elena grew, pushing Stella’s hips further back, forcing Elena’s legs to widen. The sound was a wet, groaning stretch. “Jesus fuck,” Margot whispered, her own cunt clenching in sympathetic shock.

Stella bottomed out, a new, profound depth reached. Elena felt a soft, firm pressure high inside, a presence no real cock could ever achieve. She was utterly, devastatingly filled. “Oh, god,” she choked out, her fingers digging into Margot’s arm.

“Shall I proceed?” Stella asked, as if inquiring about adjusting the thermostat.

Elena could only nod, a frantic jerking of her head. Stella withdrew slowly, the drag an exquisite friction over newly claimed territory, before sinking back in with that same relentless, perfect rhythm. Each thrust now was a journey, a deep, penetrating claim that stole the air from Elena’s lungs. Her eyes rolled back.

“You feel that?” Margot muttered, her voice thick with a complex stew of arousal and jealousy. “You feel that fucking thing in your guts?”

Elena’s response was a broken, sobbing moan. Her body, oversensitive and shocked, began climbing again, a new peak forming from the sheer, impossible depth of the violation. Stella pistoned into her, a living machine focused on a single, profound task.

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