Chapter 39: The New Aperture
The new slit pulsed, a tiny, wet mouth nestled in the dark red thatch of pubic hair just below the root of Carol’s impossible cock. It glistened under the stark lamp, a raw-looking pink against her pale skin.
“Don’t touch it,” Carol whispered, but her voice held no conviction, only a ragged fascination that mirrored the dread coiling in her gut. Her whole body was a live wire, humming with a need that was no longer purely sexual, but existential. The chemicals were rewriting her in real time.
Mark’s finger, already slick from his own pre-cum, hovered. He didn’t withdraw. “It’s warm,” he murmured, more to himself than to them. “Like it’s got its own heartbeat.”
He pressed the pad of his finger against the lip of the opening.
Carol’s reaction was immediate and violent. Her back arched off Eleanor’s legs, a choked scream ripping from her throat. Her cock, still buried to the hilt in Eleanor’s dripping cunt, gave a tremendous throb. A fresh gush of that clear, slick fluid wept from the new slit, coating Mark’s finger.
“Fuck! What… what does that feel like?” Eleanor breathed, her own body clenching involuntarily around the invasion still filling her. The sensation was a feedback loop: Carol’s shock vibrated through the rigid shaft into Eleanor’s core.
“I don’t know!” Carol cried, her hips beginning to move in tiny, helpless circles. “It’s like… it’s like you’re touching my clit and my cervix at the same time. A direct line. Oh, God, Mark, do it again.”
Mark needed no further invitation. He replaced his finger with his thumb, applying firmer pressure, rubbing in a slow circle around the sensitive rim. The fluid flowed freely now, thinner than lubrication, with a faint, clean scent like ozone and rain.
Carol’s breaths came in sharp, desperate pants. Her eyes were glazed, lost to the cascade of sensation. “It’s making me… I need to fuck. I need to fuck so bad.” Her hands found Eleanor’s hips, her grip vise-like. She began to move, pulling her thick cock almost all the way out of Eleanor’s well-used hole before slamming back in. The pace was frantic, animalistic.
Eleanor cried out, the renewed pounding short-circuiting any coherent thought. Her own modified body responded on instinct, her engorged labia gripping and milking the shaft with every pass, her inner walls fluttering in a chaotic, welcoming rhythm. The mix of fluids—Carol’s cum, her own juices, this new slippery secretion—made a wet, slapping symphony.
Mark watched, mesmerized, his own cock aching and neglected. The clinical part of his mind, the part that enjoyed the puzzle of the pills, warred with a base, hungry lust. He leaned forward, his mouth close to Carol’s new opening.
“Let me taste it,” he growled, his voice thick.
Before Carol could even process the request, he ducked his head and licked a broad stripe from the base of her cock up over the weeping slit.
Carol’s entire world exploded into white noise. Her thrusts stuttered, became jerky and uncoordinated. A sound escaped her, half-sob, half-roar. “Yessss… fuck, your tongue, right there!”
Mark dove in, eating at this new orifice like a man starved. He probed with his tongue, lapping at the fluid, suckling at the tender flesh. It wasn’t like eating a woman out. The texture was different, the responses more immediate and violent. Every flick of his tongue made Carol’s massive cock jump inside Eleanor, and made Carol’s stomach muscles seize.
Eleanor could only take it, her body a vessel for the storm. She reached down between her own legs, her fingers finding the swollen, puffy flesh of her labia stretched around Carol’s pounding shaft. She rubbed furious circles on her own clit, the overstimulation pushing her toward another dizzying peak. “I’m coming…!”
“I’m coming…!” Eleanor’s voice shattered into a raw scream as her body clenched, a violent wave of pleasure seizing every muscle. Her transformed vagina, already stretched and slick, convulsed around Carol’s shaft with a rhythmic, sucking pressure that felt less like a spasm and more like a hungry mouth trying to swallow her whole.
Carol gasped, her thrusts faltering as Eleanor’s internal muscles gripped and pulled with insane force. “Fuck, it’s pulling me in deeper!” she cried out, her own control unraveling.
Then it happened. A hot, tearing surge erupted from the base of Carol’s cock, a visible pulse traveling up the veined length as it thickened and lengthened further inside Eleanor. The growth wasn’t gradual; it was a brutal spurt, shoving another inch of rigid flesh into Eleanor’s depths, stretching her already gaping passage to a blinding, full ache.
Eleanor sobbed, her orgasm intensifying into something painful and transcendent as she was impaled further. “It’s bigger… oh God, it’s still growing!” she managed to choke out, her hands scrabbling at the yoga mat beneath her.
Below them, Mark’s tongue was still buried in Carol’s weeping slit when he felt a sudden, firm pressure against his lips. He tried to pull back, but it was too late—a hot, smooth nub of flesh pushed past his teeth, swelling rapidly as it filled his mouth.
“Mmph!” Mark’s eyes flew open in shock, but Carol’s moan above him was one of pure, unraveling ecstasy. The nub thickened, elongating into a solid, pulsating rod that pushed itself deeper into his throat with each second.
It was a second cock, smaller than the first but unmistakable, emerging from that raw slit and growing relentlessly into Mark’s sucking mouth. Carol’s body arched, suspended between two penetrations, as the new shaft reached the back of Mark’s tongue and kept pushing.