"Fuucck," Greg oathed, grabbing Alisson's head and shoving his cock down as deep as it could go, hilting himself into her mouth with an audible squelch. She didn't complain, only moaned and swallowed around him, her tongue splitting into multiple slithering tendrils that swirled around every inch of sensitive skin and made him go cross-eyed. His jaw sagged open and his eyelids fluttered as he frantically fucked her mouth. He could feel her soft hands cupping his nuts, gently massaging and coaxing them, making him relax, letting that heat in his core build and build until he was about to-
Cum. Greg arched his hips and came. Or tried to. Allison's mouth clamped down, a soft tight vacuum, and her tongues wrapped around the base of his shaft and the sack of his testicles like a noose. He bucked and gurgled, spurting a bead of pre but his orgasm was choked off at the root. He snarled in lustful pleasure and frustration as his denied dick pulsed angrily inside her throat. Alisson looked up at him coquettishly - her eyes now sported heart-shaped pupils that pulsed slowly at him. Greg whimpered.
Alisson slid her mouth off his throbbing, trembling organ with a pop. "We should go to the bedroom first," she echoed teasingly, licking her lips with her now re-fused tongue and standing up. She leaned close to him and groped his dick, whispering in his ear. "Follow me, lover boy," she cooed, giving him a stroke that nearly made him come again. She turned and sauntered off to the bedroom, ass swaying back and forth temptingly. Greg caught his breath and hurried after her, a bull baited into the charge.
Alisson skipped into the bedroom giggling mischievously, the rapid thumping of Greg's feet behind her as he all but ran her down. With a frustrated snarl he grabbed her and spun her around, kissing her demandingly on the lips. She moaned into their kiss, reaching down to caress his angrily throbbing cock even as he grabbed hold of her body and hungrily groped it, squeezing her breasts in his palm and pinching her nipple in his fingers. Alisson let out a soft cry and tilted back onto the bed, crawling into the mattress and spreading her legs, reaching between her thighs to stroke her moist and puffy pussy with an inviting purr.
Eyes wide and near frantic, Greg scrambled onto the bed and between her legs, grabbing her ankles and hefting them up over his shoulders. Alisson let out a delighted squeak and stretched out languidly for him, squirming her hips to help him line up as he desperately angled himself into position. With an exultant groan he thrust into her, hips colliding with hers with a loud SMACK as he shoved himself into her moist dungeon in a single thrust.
Inside was hot, and mind searingly tight. Her insides twisted and writhed around him, massaging his length like lapping tongues, and gently sucking on every inch of him like a dozen mouths. Greg snarled like a wounded animal and leaned over her, grinding himself as deeply into her as he could go, hips trembling from the overwhelming sensation of being buried inside the pussy she had made for him. She was a slime, after all. The humanoid form was a convenience.
Greg began to thrust in and out of her like a jackhammer, his mind fixed on his denied orgasm. Alisson moaned and writhed underneath him, legs folded up into a mating press by his grip on her ankles, pussy suckling on him almost as needly as the soft, thick lips of her vagina wrapped around him and sucked like a second mouth. The flesh was hot and sticky and clinging to him, making his eyes water with pleasure. Internally, a thin tendril swirled around the tip of his dick, and Greg felt a second fold of 'something' wrap around his swollen crown. It sealed just beneath the sensitive ridges of his tip, and then that wriggling little tendril teased itself into the open and drooling eye of his cock. Greg jerked in surprise and spasmed, but Alisson quickly wrapped her legs around his back and locked him in place, moaning wantonly. He felt the tendril slide down the inside of his penis, making him squirm and gasp as strange nerve endings lit up and the slippery appendage swelled to plug his urethra with its tickling presence.
"A-Allie!" Greg gurgled in surprise, bucking but unable to get loose. Alisson continued to rock her hips back up into him, fucking herself on his dick and moaning as her insides churned and milked around him. Back arching, he went to cum, and was again stymied - this time by the worming squirming thing down inside of him teasing the base of his cock and sliding in and out of him in a rhythm alternating against the suckling of Alisson's vagina. "Babe PLEASE!" he begged, pounding against her frantically, making her mewl in pleasure as his dick bloated inside of her.
"Shh Shh Shh, gotta be careful with the extraction," Alisson panted, licking her lips, her heart shaped eyes flashing at him hypnotically. She stroked Greg's face soothingly and drew his head down to her bosom, pressing a nipple against his mouth. Inside, she clamped down on him and rolled, milking him even as her ankles locked around his back making it impossible for him to pull out or move much. He hunched against her urgently, gasping around her teat until he finally bit down, suckling at her breast with desperate abandon. Alisson cried out, tightening her fingers into his hair as he bit down onto her hard, a small squirt of lightly sweet fluid that reminded Greg of Gatorade.
"Oh fuck- good boy~" she praised, stroking his hair and milking him stronger in approval. Greg flopped against her and suckled, thoughts shaking and breaking apart as he drank down the fluid. The slippery little tendril continued to lap and pump the inside of his dick even as the soft caressing flesh of her womanhood massaged his length and the inner fold sucked on his crown. He felt like he was bulging, growing. His nuts were painfully stuffed, and his dick felt like it was bloated monstrously inside of her. Had he been capable of thinking, he would have worried about what it must look like - purple and swollen out of proportion, taut skin barely able to contain the arousal filling it from inside. He jerked with another blocked orgasm, mind swimming.
With terrifying strength that belied her soft appearance, Alisson twisted their hips and flung her body around, rolling Greg beneath her so she could straddle him. Her nipple popped from his mouth letting a trickle of light pink fluid dribble over his face. "A-ahh, I can feel you brewing for me, so much inside," she purred, licking her lips. Her eyes pulsed at him in hypnotic intervals as she rolled her hips, her insides like a milking machine that worked him over. Greg gasped and whimpered, gripping her hips and thighs tightly, finger sinking into the flesh that seemed to swallow him. "B-babe... please... I..."
"What, sweetie?" Alisson whispered, leaning over him, her breasts draped over his face. Greg groaned, penis twitching inside of her. "C-call out...sick... work...for me..." he managed to choke out, rubbing her thighs in his palms. Alisson's eyelids fluttered, feeling him surrender to her absolutely, and fed her opposite nipple into his mouth. "Of course, baby," she purred, trickling her mystery drink into his mouth as she rolled her hips faster and redoubled her internal flexing. "Just leave everything to me."
Greg felt another orgasm well up inside of him, but this time something shifted inside of him. He felt the tendril down inside of his penis contort, and when he went to gush instead of blocking him it drank up his issue like a straw. Alisson shuddered on top of him, surface rippling as she drew out his cum, her body absorbing the genetic material in it. It leaked out like a flood strained to a trickle, and inside her plush torso her core glowed softly as it absorbed the semen. Greg moaned as he came and came, powerful release gripping him as his pent up cum was finally tapped and slowly but inexorably drawn out by Alisson's body. Whatever was coming from her breasts leaked down his throat, making him feel sluggish but refreshed, and his orgasm stretched on from mere moments into seconds into minutes as his balls shrank up against his body. Finally, the last four orgasms worth of cum slowly slurped out of him, he sank back into the mattress panting for breath, Alisson's slippery pink breasts draped over his face. He was still rock hard.