You are not logged in. Log in
 

Search

in Mad Science by anyone tagged as none

Mad Science

You begin your transformation, but the Sneakat takes the lead transforming you! (F -> ????)

You begin your transformation, but the Sneakat takes the lead transforming you! Professor Rosalie each hands you the monster dex to initiate the transformation, but it's only a short while before the sneakat leaps out, leaving the device fumbling to the ground as it shoots a haywire beam! It gives a slender feline smile, then you gasp as it gets ready to merge with you, slipping into your body as you become a feline plaything.

Its body feels sleek, firm, and yet cool, like a wet and oily clay as you feel it's cold blooded snake scales and sleek silky cat fur brush against you. But still, it feels good as it rubs against your inner thighs, rubbing its head against your clit and labia, causing you to gasp as it begins to lick and suck upon your folds. You shudder and whimper as its slimy tongue laps over your pussy lips and clitoris, tasting you as it slurps and sucks upon you. Meanwhile the beam begins to activate over you as it glows bright red and flashes.

Meanwhile, the Sneakit looks up at you and grins, shaking its massive snake body and coils it's tail around you tightly. The Sneakit begins to press up against you, sliding up your torso until it reaches your breasts. With a quick flick of its thick tail, the Sneakit bites down on one of your tits, biting down hard as it pulls back sharply, drawing blood.

With a sharp cry, you yelp and writhe under the pressure of the Sneakat's bite, moaning and groaning as the venomous snake cat begins sabotaguing your own merge. It's cock begins to merge with you, yet your breasts begin swelling slowly as well, growing larger than ever before. Soon enough, both the snakeskin tail and your breast tissue begins to grow rapidly, stretching out your body and filling in the gaps of your breasts.

Meanwhile, Gwen felts a soft slimy touch, as the slithertail's slimy flesh slithers over her belly, feeling it's way towards her slit, slipping inside her vagina and starting to explore her insides. She moaned softly as it began to wrap itself about her vulva, exploring her folds and wrapping itself tight around her pussy, beginning to pump her fluids around.

"Hahaha... This is going to be interesting.." she says as she watches you struggle, struggling to push herself back onto the snake creature. Her pussy felt nice though, she was surprised to find how much she enjoyed having another pussy inside her. The slime inside her pussy seemed to react to the other creature inside her, moving faster as it slid up and down inside her, pumping her full with its slippery fluid.
It wasn't long before the Sneakit had partially merged with you, it's cock and head taking control of your body and forcing you to lay down on the grass below, panting heavily as it moved closer to you. It leaned in and kissed you passionately, its slimy tongue sliding between your lips as it sprouted out of the side of your shoulder. Your initial form appeared to be a partially transformed herm two headed cat, the sneakat's head fully feline, while your own was having splatters of fur rip out of your clothes slowly with about 75% of your body human skin while a fluffy, snake scale coated tail with a aphrodisac stinger slowly started pushing itself out of your spine.

The sneakat pulled back, grinning as it watched you squirm and moan. "Mmm.. You taste delicious~" It purrs happily.

Then without warning, it shoved its unfused half's entire male length inside you, eliciting a loud yelp from you as you felt its warm, slimy organ slide deep inside your pussy . Its tail wrapped around your waist as it pushed deeper and harder, making you grunt loudly as it filled your pussy completely. Then suddenly it stopped, pulling out halfway as it held you close, pressing its pelvis against yours. You whimpered, starting to drip in release as the cock so close to cumming went from abhorred terror to... lustful pleasure.
It thrust deeply inside you, filling every inch of your pussy and ass, feeling its slick shaft sliding in and out of your dripping hole, fucking you roughly. Yet despite how rough it was, it didn't hurt nearly as bad as you expected. In fact, you found yourself enjoying the sensation, your body responding eagerly to the creature within you. You whimpered, reaching down and grasping the tail coiling around your waist as the creature behind you pressed its cock against your lower abdomen. Only to yelp as with a splash, instead of orgasm, you heard the cries of a sudden orgasm as you got ready to be cummed in!, Only for the pre to erupt.. and then a pop as your own fusion with the cat completed, the merged cock popping out of your pussy and into your groin as it cummed into the open air, splattering over Gwen's face as she licked her lips hungrily, savoring the flavor.

"Hehe.. Mmm.. Yummy.. sssss.~" She smiled, begining to slither as her own transformation progressed as her hands melted away into her slimy snakelike form, already becoming mostly reptilian. Her pussy remained partly human however, keeping her pussy lips intact, and allowing her to continue pleasuring herself with her tongue and revealing a slimy twin cock.
Her tail tightened around your waist, squeezing tighter and harder, almost like she wanted to crush you beneath her weight as she began to hump you again, humping your stomach and rubbing her bulging pussy along your labia and clit, making you whimper and moan, bucking your hips in response to her lewd motions.

Soon enough, your Sneakat's tail gave a jerk, releasing you as it slid out of you, only for the snakecat's twin head to quickly grab hold of you once more, shoving its whole length into your now gaping pussy. You gasped, crying out as it sank further and deeper inside of you, burying itself all the way inside of you and causing you to twitch violently. It pumped you full of its seed, shooting its sticky load inside of you, coating your womb and cervix in gooey cum which oozes out of you, dripping down your legs.

"Heh, it looks like your sneakat isn't cooperating with you at all for your fusion! I'm impressed. I thought i'd have to try harder" Gwen giggled, watching you writhe underneath her as she reached up as she continued having her skin transform into pink slimey skin, and begin to wiggle across the floor like a proper snake. She took one look at your pussy, and with a coiled spring, began to aim herself at your exposed yowling clit and feline cock and balls. She began to stroke it rhythmically, stroking her tail end through her slime and your femcum letting it run down her arm.

"Master.. needs.. earn respect.. or be fucked like bitch.. yess.. " purred your own mischevious sneakat.. It smiled at you, and began to lick your moaning lips as it leaned into a kiss on your two headed feline anthro body.. Now you were looking more like a chimeric dick girl than a trainer, but you couldn't do much more than moan, your fiesty fusion falling apa
rt as the free will of the feline and the overpowering lust overwhelmed you.
Your eyes widened as the Sneakat began to pull back, withdrawing its aphrodisac laced tail stinger from your pussy entirely, leaving you gasping and moaning. Before it could re-enter you though, the slimey slithertail Gwen took charge, pushing forward and ramming itself into you as she started to wriggle into your pussy, her skin starting to emit a slimey cum that made your hands, now slowly forming pawpads too unagile to grab her.
She kept humping you, pounding herself into you over and over again, slapping her slick cunt against your sensitive folds, smearing her juices across your vulva and clitoris. As soon as it began to feel good, she slowed down slightly, licking her lips hungrily as she looked up at you, smiling widely.

"I've never tasted pussy juice before." She said breathlessly, leaning down and kissing you lightly on the lips, tasting you on her tongue. You let out a quiet mewl, closing your mouth around her slimy snake's tongue as she sucked on it gently, giving her a chance to enjoy your flavor. Meanwhile the Sneakat's tail slipped out of your pussy, leaving you panting as she grabbed your arms, pinning them above your head.
"Ohhh.. That's not fair..." you whimpered.
The professor smiled. "Oh dear, i forgot.. That sneakat was already evolved, and they're very free willed. i forgot.. When you have a monster too... experienced.. it just might not listen to you, even if it is fused with you. And they tend to get aggressive when they want sex.. So don't worry too much about being dominated by the sneakat, he'll be gentle with you~"

The sneakat began to move, you could feel the fur slowly crawling up your body and getting into position atop you, first growing up your thighs as the black cobra furred cat scales grew, it's feline eyes smirking wickedly as it lowered its head towards your chest. Without warning, it bit down on your left nipple, sucking it into its mouth and nibbling playfully at it. You cried out in pain, flinching as the venomous snake cat began to suckle your breast, milking your milk into his mouth and swallowing it greedily.

"Ahhhhhh!" you screamed out, thrashing wildly as you tried to escape him. He chuckled darkly, biting down on your other breast hard and tugging on your nipples with his teeth. His tail wrapped around your waist tightly, holding you still as he began to knead your tits, massaging your breasts and squeezing them roughly as he drank your sweet milk.

As he did this, Gwen's slithertail body slithered up her body until it was directly above your crotch again, sticking its tongue out and licking her self as she began to emit slimey cum as she entered you again, stretching your tight pussy wide as she buried her twitching pussy inside of you. The slimey snake rubbed herself against your gushing pussy, spraying you with her creamy cum, making you cry out as she began to rub her thick, slimy slit against your tender clit.
"Nnnnnggggghhhh! NNNNGGGHHH!" you moaned as the snakecat's tail tightened around your waist, gripping you tightly as she began to fuck herself inside of you.

"Interesting!! You've managed to... lose to yourself. That's a first! Most people can't seem to defeat themselves. But perhaps because you're such a powerful pokemon trainer? Perhaps it makes sense that you would win over your own monster?" Professor Rosalin spoke excitedly, sitting next to you and watching the lewd scene unfold between you and the Slithertail snake gwen and your own snakecat.
Meanwhile, Gwen had been busy, laying down on top of your pussy as she positioned her head again directly over your pussy. With a coiled spring, she launched herself into you, landing her pussy right onto your clit as she slammed her slick pussy down upon it, smothering it with her slippery juices as her own tail began wrapping around your feline cock. You felt so embarassed as you lay there, unable to move, staring at her as she began to grind her pussy against your throbbing member, coating it in her copious amounts of cum as she humped you furiously.

"Oooh yes, my pussy is soaking wet after eating your pussy earlier, I need some cock now," she whispered huskily, grinding her pussy against you and sliding her slimy pussy up and down your swollen cock, smearing her fluids all over your shaft. Your own tail tightened around your waist, holding you still while Gwen continued to ride you, riding your cock until she came, squirting all over you and making you shudder, moaning loudly as you climaxed, spilling your warm semen all over the table and floor below you.
"Mmf! Mmmm! Ooohhh! Uuunghh! Ahhhhh!" she groaned loudly as she orgasmed, shaking as she filled her pussy with your sticky cum.


What do you do now?


Title suggestions for new chapters. Please feel free to use them or create your own below.

Write a new chapter

List of options your readers will have:

    Tags:
    You need to select at least one TF type
    Tags must apply to the content in the current chapter only.
    Do not add tags for potential future chapters.
    Read this before posting
    Any of the following is not permitted:
    • comments (please use the Note option instead)
    • image links
    • short chapters
    • fan fiction (content based off a copyrighted work)
    All chapters not following these rules are subject to deletion at any time and those who abuse will be banned.


    Optional