Chapter Text
“Hello there! Welcome to the world of Pokemon! My name is Professor Cider. People call me a Pokemon Professor. This world is inhabited by creatures called Pokemon. For some people, pokemon are pets, others use them for fights, myself? Well young ones… I study them, more specifically I study their breeding habits, and the fundamentals of childbirth. It’s an important study which will help us not only improve our relationships with them, but further the evolution and interspecies responsibilities between all of us. Now then, why don’t we take a venture out into the world, and see what we can find?”
Pulling away from his recording device, the young virile Professor Cider finally brought his attention to the field before him. For days he’d been stalking through these grasslands, observing a young Eevee couple as they frolicked through these flowery plains. It had been an amusing thing, he’d learned quite a bit about their behaviors! Apparently Eevee were monogamous in nature, he’d seen a few other pokemon come and go and yet the female had never strayed far from her mate.
This had been an eye opener for the young Professor, who knew that pokemon could be so singularly focused within couples. It had been widely believed that most pokemon weren’t interested in starting families and would often leave their young at a young age. However, as he had come to know them he’d learned a few things, learned how much of a family unit they were. He could see the almost unbreakable bond between the parents and their kit. It was heartwarming, however… heartwarming had nothing to do with discovery.
He knew what must be done, and though it pained him. As he had grown quite attached to the little group, having spent several months observing them. He was there when the kits were first laid, having seen them grow into fine Eevees.. He would still accomplish his goal.
He just needed to find the perfect time to strike, his experiment must go on.
Finally after many moons of waiting, a chance had arrived. Winter was coming soon, and the male would need to find food for his family. He knew this meant that he would be gone for many days leaving his family alone, the female would need to be the one to defend their nest.
However, that didn’t mean this would be easy, she was a powerful fighter in her own right and the kits could prove troublesome for a lone human, so biding his time was still important.
That moment finally came on the second night of his departure, the mother had put her young to sleep making sure they were well rested into the small caved nest they had. Believing that she was alone and without danger, she made her way over to a slightly raised hill and began to cry into the night.
“Eevee!”
It was obvious that she missed her mate, sorrow taking her as well as her natural urges and needs.
“Perfect.”
He silently spoke to himself, this was the chance he was waiting for. As calmly as he could, he began to crawl towards her, making sure to stay downwind so she couldn’t catch his scent. HIs labcoat would be stained green with grass, but that was a sacrifice he was willing to make.
He could see it, clear as the moon’s light shone down upon her. That perfectly slick black spade of hers, twitching enticingly as if beckoning towards it.
You see, Professor Cider was a Pokemon research, a professor, one who studied breeding and sexual habits. And among those habits were questions regarding how Pokemon and Humans could interact more… sociable level. His work was highly admired by those of his field, many young trainer had taken to heart his information and had even gone as far as to practice his studies. Thanks to him, the act he was about to bestow upon her, had become far more socially accepted. After all, getting to become one with nature was important~
He could see her shifting upon all fours, ready to return to her nest, he needed to act fast!
Like lightning he struck, before she could move he was upon her. With a single finger and a quick action he’d penetrated that squishy oval shaped mound. Her dark black lips tightly squeezed upon his middle finger upon impact, instantly tightening her grip. Her natural lubricants made his task all the easier as he was able to slide down to the knuckle.
“EE?!”
She cried in sudden surprise! A look of shock and astonishment was plain to see as she turned her attention to him. But before she could try to move or escape he responded.
His finger wiggled inside of her, playing with her insides stretching her tight soft velvety walls. Grinding and rubbing against the smooth ridges that lined her cavity, her internal viscous fluids made it easy for him to start stroking her, pulling out and plunging in his finger again and again till she submitted to him.
Like many female pokemon, foreplay was something beyond them, meaning that it was easy to subdue them by using human methods.
“Vee vee vee!”
She cried out with pleasurable moans, her body shivered before him as her hair started to stand on end. Her legs quickly gave out, forcing her belly down onto the grass beneath them. A quick breaze bristled the flowers around, as a silver ray of moonlight lit the mood that was to follow.
She began to spasm beneath him, her internal organ tightly vibrating around his digit. She was orgasming, losing to the temptations of the flesh near instantly. Losing her strength made it easy for him to pull his finger from enticingly moist sex. The black leathery lips tugged against his digit as it slowly left her cavity.
“Perfect, you’re ready.”
Despite his… professionalism, Professor Cider couldn’t help but enjoy this part of the job. He’d learned a few things when it came to taming pokemon in the wild, a pokeball wasn’t always needed, sometimes a good hard fucking would do.
With a snap of the button and the zipping of his zipper he’d freed his throbbing cock from its confines. The long meaty stick pulsing and twitching with anticipation.
“A bit more foreplay could be used, but time is of the essence.”
Poised and positioned he primed himself behind the exhausted pokemon, her small body convulsing before him made her an easy prey. Slowly the tip surged forward, spreading the soft veil of her tender black lips apart. The spade perfectly encapsulated his member, swallowing it with delicious fever.
“Eee~”
The little thing cried in pleasure and shock, her body folding beneath him forcing him to apply more pressure and strength to his endevor.
“Tight little thing, aren’t you?”
Pokemon were far more rugged than human’s, their bodies able to take far more abuse. This of course meant that they could handle a much rougher sexual experience, or in this case, swallow more of his length despite the massive size difference.
Her insides stretched to accommodate him, allowing him to fill her teeny tiny body with ease as he pressed on. Eventually he found himself knocking against her cervix. A few attempts to nudge the wall forward proved fruitless. “I suppose your size won’t let me push more than halfway in.”
“Vee♥”
The lustful mon offered no resistance, instead shaking her rear in hopes of causing a stir up of her insides. With both hands free he cusped each side of her, squeezing his fingers into her soft fur to hold her tightly. “Alright then, time to get started.”
Plap Plap Plap Plap
Thick wet smacks echoed through the still night as he pounded into her soft succulent flesh. The pokemon proved to be a perfect pocket pussy, her tight little cunt gripped like a vice. The fleshy hold massaged his dick, twitching against his veiny member allowing his penis to truly feel the sensations inside of her.
He’d found that pokemon were not only hyper sensitive to human cocks, they had also responded better than human to human. He wasn’t sure if it was an attribute to their typings, but he could make out each individual nub inside of the Eevee’s tight little cunt. The way that she succumbed to him was immaculate, her head launching back as she cried devilously in proper pleasure.
The more he struck against her cervix, bashing into the tight little wall that refused to budge, the wetter she became. Her own natural fluids proved to be the best lubricant for his much larger human dick.
“Aah~ Pokemon Pussy’s the best!”
His bulbous tip hung at the edge of her entrance. The soft black lips clung tightly molded around the mushroom shaped crown, stretching from the base of her skin in a clear attempt to not let him go.
“True to your nature you desire a real human cock inside of you, that seems to be a common attribute to female pokemon, wishing for something so utterly sinful♥”
A single thrust and he shoved himself back in, slamming against her cervix with reckless abandon. The soft wall nearly caving as he pushed it further up her tunnel pressing into her small womb.
He could feel her insides distorting around her.
“Yes! Perfect, perfect! You can take whatever is thrown at you, truly a miracle of evolution.”
Of course he meant the more natural form of evolution, not the actual pokemon evolution…
Rearing back he felt her cling to him once more, her insides tightening even further. The length of his member was slick with her bodily fluids, her insides churning in need to be filled again and again. Even from here he could see her hazed eyes as she did her best to tilt her head upwards so she could see her new mate.
The fluttering gaze of her eyelids half lidden in lust was more than enough to get him really going.
Thrust after thrust he slandered her insides, completely changing forcing her to mold around him, shapely expanding her to fit a human not another pokemon.
He found himself releasing a beast from within, churning her like a butter barrel. His hands worked to rotate her letting him hit and stretch her insides as his dick stretched her, prying and playing with her perfectly shaped body.
He could feel the stirring from within, he was closer than every to releasing his human semen, to injecting her with a rush of thick white goo.
“VEEEEEE!”
The small pokemon howled to the moon as he began to pump her full of white hot cum, flooding her womb with a river of rich nutrients. Her tongue hung loosely from her mouth as she panted in pleasured glory.
He tried his best to stuff himself inside of her, to keep his precious seed from spilling and spoiling on the grass below. But immeasurable pleasure that she provided to him and caused his ejaculation to overflow. Thick white cream squeezed between their interlocking members causing a flood of white to spurt from within. Her belly expanded then deflated upon release.
Poor little Eevee had never experienced anything like this in her life. The ever faithful pokemon had been taken, claimed by another that wasn’t her mate. A human! By a human of all things! They had come to her land, and entrapped her before she could escape.
Despite her fears, and worries of what they may do to her children, her body had given in, completely succumbing to them as they played with her. Their fingers reached into her depths extending her insides and scraping against the soft velvety ridges of her tight poke-pussy.
Shame had filled her when she’d given in, when her body had surrendered itself to the overwhelming pleasure.
That only got worse when he actually started to mate with her, his big fat thing had stretched her wide, fitting into her tight little cunt through a miraculous means.
She couldn’t believe something so large and girthy could fit inside of her, could stretch her and push her insides up her body the way they did. She could feel the way that it rammed her, pushing her little womb further against her stomach smashing and mixing up her guts.
Then whenever he tried to pull out, the betrayal of her body got worse, she clung to him begging the big hot meaty thing to stay inside of her. She couldn't let him pull out, couldn’t stop from enjoying the sinful pleasures of the flesh!
She wanted more and more and more. And more he gave her, over, and over, he released thunderous strike after thunderous strike.
Her body quaked with pleasure, all thoughts of her mate and children quickly vanishing, instead she could only think of this human’s fat cock, wanting more of it inside of her, wanting his seed to spill and bless her with young!
When she felt his rich virile seed plot it’s land within her pot, she started to feel a change. As the thick semen pooled inside, overwhelming her womb and spilling out onto the ground beneath. She knew something was happening to her. Her body began to feel alive, a surge of new energy taking her in the heat of the moment. Her body began to glow as the scent of flowers filled her nose.
“Amazing!”
He could hardly believe his eyes, the Eevee before him began to shine brightly.
“Evolution!”
It seems that through breeding with the pokemon, he’d managed to trigger a sudden evolution. The Eevee herself was shimmering a bright pink, transitioning to a new stage of her life.
He could feel the intense heat around his still buried cock surge to life, the release of energy transferring directly to him. It was almost as if he was evolving as well, he could feel the aches and pains from his studies vanish, a newly invigorated spirit completely consuming him.
Once the light had come to an end he was met with not an Eevee, but a gorgeously pink Sylveon.
The fairy pokemon eyed him with sparkling sapphire eyes.
“Syl?”
He could already tell what she wanted, what it was she was desiring from him now.
She was bigger which meant that they could go at it much deeper, but how much? He needed to test.
He removed himself from her, her pokepussy let out a loud satisfying POP .
“Veon?”
He could tell her yearning was growing by the second, without him inside of her she was begging to become unsettled, restless even.
That’s why he had to act quick, grabbing her by the sides once more he suddenly flipped her.
“EON?!”
Perhaps a bit too fast, but he needed to hurry!
With her on his back he struck forward, pinning her down upon his weight, forcing those back legs of hers to stretch down against her sides as his thighs and hips held her in place.
She was perfectly sized for him now! Completely stretched to contain the full length of his girth, he was now inside of her balls deep. Her pretty pink spade squished against his pelvis, his heavy orange sized balls smacking into her underside with a healthy wap.
“Time to show you how humans mate.”
HARDER FASTER STRONGER!
He released upon her the true mating style of a human, his hips slammed against her with unrelenting force, leaving her in a constant pleasured state as his cock curved upwards against her insides scraping along the walls, dragging the thick veins into her soft tight tunnels.
Every tiny milimeter of his thick hard human dick was enough to send her over the edge time and time again. She cried out in pleasured moans, long hot pants escaped her parted mouth.
Her shimmering blue eyes hazed with little heart marks floating inside. She was completely at his mercy!
When his lips forced themselves upon her, tongue snatching away at the last of her dignity she came again and again. She couldn't handle it, and he loved how she mewled into him, her paws pressed against his stomach for safety, her entire body quivering before him legs trembling as her muscles tightened. He needed more of this preciously powerful pussy, needed to pound her till she couldn’t move.
Sylveon was unable to stop herself, she felt her body giving in over and over and over. She’d already surrendered herself, thoughts of her mate no longer important. Her little pokemon brain sparked to life as she was shown how a pokemon should serve a human.
He was stretching her to an insane amount, something she was going to require time after time from now on. His thick hard cock pushed her to the bridge of insanity. She was already unable to move, spasms convulsing through her, leaving her muscles sore and tight from overuse.
She wasn’t sure when he’d stop, nor was she sure she wanted him to stop. Everytime he released inside of her, letting her fill her insides with that amazingly white human cum, she was pushed more and more into depravity. Her insides were painted in his precious white, painted in his color and stained in a way that could never be undone.
Her ribbons, still unused, fell to the sides as she breathed in his rugged scent. The overflowing pheromones were enough to send her once more into that crashing pillar.
That night they continued their studies, a new desire to mate, one that was beyond her animalistic thoughts, blossomed inside of her.
Eventually, after hours of constant deep breeding, he was done.
He eyed his handiwork and smiled. The newly minted Sylveon was covered in his seed, thick globs of white marring her soft coat, matting her fur to her body.
“Perfect~ Time for observation then.”
He stepped away, leaving the convulsing pokemon to herself. A happy almost twisted smile pressed against her lips as she spasmed, legs twitching, paws unclenched. She was marked for life… and would perhaps need to have more… experience in the future. He didn’t notice a set of soft brown eyes watching him as he walked away.
Several days passed, and his observations had continued. The Sylveon was still welcomed by her family, “They still see her as the same creature…”
He’d also written in his notes how sexual intercourse between pokemon and human may cause evolution??? That one was left with question marks as it would need more studying. He knew that Sylveon was a pokemon that evolved through friendship, so perhaps sex with one was enough to push her opinion of him high enough. Though that begged the question, was sex with humans far more satisfying than it was with her own mate? Did she feel something from the infidelity that helped with the evolution? Or perhaps it was human seed that did it? He would need to do more testing in the future.
One thing to note, was her more active sex drive. When her mate had returned, she’d practically pounced him upon first arrival. She didn’t seem to care that her children had been watching as she forced him into mating, “Interesting, she’s mounting him… that’s not something pokemon usually do.”
Another piece of his notes was added, this was entirely new information! He would have to take this and perhaps use it in the future. It all required more information but he was happy to do his job.
“Alright… it’s about time for me to move on.”
Preparing to pack up, he was stopped as he felt something brush against his leg.
“Vee?”
A smaller Eevee had approached him, “Ah, you’re the daughter of the bunch aren’t you?”
“Vee!”
Before him was the only female Eevee of the litter, seeing as how female Eevee were rare it was of no surprise that she was the only female.
“What are you doing here?”
“Veevee!”
The little mon hopped around in a circle around him.
“Oh? I suppose you want to come with?”
“Vee~”
Her movements slowed as she ran herself across his leg, her bushy tail flicking against him as a sign of attraction.
“Well then, who am I to say no to a new assistant? Come along then, we have much to do!”
“Vee!”
In the distance, Sylveon watched as her daughter left with the human who changed her life. It was time for her to mark her own place in the world, and having a good partner would help.
“Now then! Next study, time to see how human females interact with male pokemon. Time to find a… test subject.”
“Vee!”