This is a literature from the website DeviantArt (and also one other website). I did this because, it is quite long, quite weird, and he did it as a story for his art. Also, I just want to share it. All of the details have been stripped, hopefully.
Try to find the original source. This literature is SFW, I swear!
"Ah, what a wonderful day!"
The female character happily murmered to herself as she strolled through the woods. Ah, just ambling through without a care in the world... what more could a [species] want?
Unknown to her, however, someone was peering at her from some nearby bushes. The male character was eyeing the traveler with keen interest.
"Ah, she's perfect!" How the male character exclaimed, making sure to hush his excitement.
"I've been wanting to test out this little magical creation of mine for a while now..." he giggled, holding up an ordinary-looking zipper. "If all goes well, then soon I'll have my own cute, obedient [Pokemon] pet!"
Grinning widely, he pounced after the unaware female character, slamming the zipper onto her back before she could even react.
"Wha?!?" she screeched loudly, taken completely by surprise. Angrily, she turned around to glare at the perpetrator, not quite aware of the zipper sinking into her tail feathers or the black gooey liquid dripping out.
"Grr... How dare you, [species]?!?" The female character yelled, [sentence depicting the female character's characteristics]. She was going to give the male character a nice, little punishment for hitting her so severely... maybe some time as her pet? Yes, the male character needed to learn a little obedience....
Magic radiated furiously from [body part], ready to act on its master's whims. The female character began to utter an enchanting spell, her powerful magic swelling inside her....
until it suddenly stopped.
Suddenly, the spell faltered, the magic draining from her outstretched [body part]... and into something else.
"Huh?!?" The female character questioned, confused. Something was crawling on her back....
Startled, she glanced behind her to see thick, black goo rapidly spreading out across her back, [her hair] being smushed and smothered by sticky, thick black rubber. It pulsed and shivered, digging into her skin along with a rapidly disappearing zipper. This... gooey mass was also absorbing her magic, glowing faintly as the goo's speed and size tripled.
In a panicked frenzy, The female character tried clawing the goopy stuff off with her [body part], but to no avail - the gooey rubber simply stuck to her [hair] and began oozing towards her elbows.
The goo felt icy cold, curling around her sides and painting her stomach and chest in a thick coat of blue rubber, which turned black at the shoulders.
The female character struggled frantically, desperately using her magic to try and disperse the goo off of her. But the more she tried, the goo simply absorbed the magic, growing in strength and speed while leaving her more and more exhausted.
Finally, the goo completely smothered her [body part], rendering any magical abilities largely useless. An odd but disturbingly pleasant tingling ran through her [body part] as the goo covering them began to constrict. Her [hair] was forced towards her [body part], squeezing tighter and tighter as the [hair] crumpled underneath the staggering pressure.
However, it surprisingly didn't hurt at all, even as her [body part] were squished and squeezed into painfully [species] arms?
The limbs of the new character formed. The gooey rubber began to squirm and flatten, digging into the [body part] and skin and new colors forming and dividing. the limbs now have colors, depicting the desired Pokemon].
The female character gasped at the overwhelmingly foreign sensation. Her [body parts] were being crushed, condensed, [hair] dissolving entirely into a gooey mush. Magic spewed from them like gas from a broken pipe, farther fueling the assaulting rubber.
Yet, it wasn't painful at all, rather... enjoyable?
An odd, rubbery scent tickled female character's nose and grew stronger by the second. The female character gagged and coughed, trying to keep the foreign scent out, but it was futile. Trying to use her goopy [body part] to block the smell just brought the foul-smelling rubber closer to her nose!
Wait... [body part]? Since when did she have [body part]?
The female character's mind began to swim, patches of memory beginning to fog up as the rubber assaulted her legs. Small, insignificant patches, but patches nonetheless.
And those small patches began filling with another... set of memories, like tiny pieces of a different puzzle.
[Pokemon species]?
The female character suddenly recognized the designs of the rubber enveloping her - [redacted]! Sh-, she was becoming a Pokemon!
The female character was no stranger to transformation, but this time seemed different. She couldn't fight back... she could barely remember if she even wanted to fight back.
The goo slithered over her [body part], reshaping and remolding them like clay into cute, soft rubbery [new body part].
Just like always....
Wait, no! The female character's mind frantically fought to regain her scattered thoughts. She... she was [a species], and the male character did this to her!
She silently swore to get revenge... but now she had more troubling issues. Her entire body was covered in the] goop except for her head, dripping and rubbing against her skin. Her instincts, bribed and bought by the increasingly pleasant sensations the goo was sending her, begged for her to submit to the assaulting goo and mindless bliss it promised - But the female character vowed to stand firm.
However, she wasn't sure how much longer she would last. This wasn't looking good....
The female character was in trouble.
The female character struggled against the rubbery, sticky latex clinging to her body. Curiously enough, the goo had stopped short of encasing her head, focusing instead on gently easing her [limbs] into new [redacted] encasings.
Luckily, so far her mind was largely intact, her efforts and small use of magic able to keep the intoxicating rubbery scent away. However, her power was draining by the second. She wasn't sure she could resist much longer.
Anger firing up in her eyes, she glared at the male character staring at her with malicious glee.
"Grr... you little! -" She stammered, yelling empty threats at the sneering male character. "W-why are you even doing this?!? What do you want?!?"
"Oh, I just want a friend!" The male character beamed, a fake smile plastered onto his muzzle.
"Oh, silly me! If we're gonna be friends, I should introduce myself. The name's [redacted], though you can just call me 'master'!"
"Master?!?" The female character was outraged. W-who did this [character think he was, daring to insult her like this?!? He should be calling HER master, not the other way around!
She turned around to yell more threats at the male character, only to find him gone. W... where did he?....
The female character found out in a second as a large, rubber headpiece was suddenly forced down onto her head. Before the surprised female character could react, the big, clunky headpiece was on completely, her head erupting in painful throbs as her [redacted] head was squeezed and forced into the shape of the costume - which appeared to be almost 2 sizes too small.
The female character felt disoriented, her senses filling with nothing but rubber. Feebly, she tried tugging the mask off with her rubbery [limbs], but to no avail - she still wasn't used to these new appendages, which could already do little more than groping uselessly at the mask.
Liquid rubber began to drip down from the headpiece, fusing with the rubber suit below and encasing the poor [redacted] completely in a rubbery [redacted] suit.
The female character felt dizzy and weak. Her nose filled with the intoxicating stench of rubber, overwhelming her mental defenses. Her body suddenly convulsed as the suit constricted, tightening and flattening until it resembled a sort of tight rubber skin around her body.
The female character instinctively shivered with pleasure as an immensely pleasant sensation seeped through her body, as the goo began shifting and squeezing it.
The female character didn't notice her body beginning to change, though - she was too busy fighting for her mind. Desperately, she tried recalling information and memories, running through them as immensely overpowering urges and instincts assaulted her entire subconscious.
She is [name], a magic-wielding [species]! She was a powerful [species] who submits to no one! That male character won't get the best of her! She needs to keep her mind so she can inflict revenge!
[This part depicts that she is fighting against the costume that wants to change her into a certain Pokemon. She is losing it.]
She was [species], the small and weak creature... she is powerful only because the male character has graciously given her this power! She is forever in his debt....
Who was she? It started with a [name].. [name]
She was powerful! With [charaterstic]... a powerful Pokemon pet!
that mischevious - no, generous male character gave the best to her! The best gift he could give! He needed... He needs... a reward?
Yes, how kind of him to make me this way... feels so, so good... [redacted]?
What a generous [redacted] gift, to be master's loyal and faithful pet! [redacted]
Her mind rapidly broke down underneath the gooey rubber, all complicated functions or thoughts rendered utterly impossible. Her thoughts simplified into simple, basic chunks while the area centered around pleasure consumed most of the remaining space.
Obey... master... [redacted] he... is... kind and good... good master! Protect master! [redacted]!
The female character collapsed onto all fours, The goo immediately locking her new legs into position. Mere seconds later, the female character forgot she ever stood upright at all.
An entirely new backstory, created from scratch, weaved itself into her empty mind.
The male character raised her... cared for her... made her special. He was her parent, trainer, and master. He was her everything. The only thing that would bring her joy was fulfilling the wish and command of the male character, and the sensitive rubbery skin. [Editor note: This is weird, how creative.]
The female character closed her eyes, reopening them to reveal the [charateristic] Pokemon. The final touch, a bright red rubbery collar, wrapped around her neck, fastening into place.
The female character was no more. There was only [Pokemon species], the loyal and obedient pet of the male character.
[Editor note: The female character is now the Pokemon.]
The converted Pokemon gazed silently at her master, her blank [redacted] eyes glowing softly.
The male character did a little jump of excitement, overjoyed at his success. This was perfect! SHE was perfect!
Using his magic, he quickly whipped up a bright red leash and attached it to the converted Pokemon's new collar. the converted Pokemon yelped with a slight surprise, but shock turned to joy when she saw the leash led to her master. The leash and collar tugged gently against her skin, sending small, pleasant tingles rippling through her rubber body.
the converted Pokemon looked at her master and grinned. She didn't quite know what was going on or why he looked so happy, but she didn't care in the slightest. All she knew was that her master was happy, and it was because of her. That thought alone was utter bliss for the converted Pokemon. She had been a loyal Pokemon! She served her master well!
Her legs shook a little as the thought of her pleasing Master sent a ripple of pleasure shooting through her body, like the electricity that ran through her gooey veins.
The pleasure intensified as the male character stroked the converted Pokemon's back. To the converted Pokemon, it was like being stroked by heaven itself.
The Pokemon let out a soft purr, embracing the male character's [redacted] fingers brushing against her skin.
Alas, it was over far too quickly. How stood back up, grabbing the leash and preparing to lead his new Pokemon off into the forest. the converted Pokemon whined for a second, before leaping onto all fours. Master must be obeyed! With a serious look on her face, she began using her new X-ray vision to scan the forest, looking for anything that could threaten her master.
How chuckled to himself as his eyes fell upon the the converted Pokemon's serious glare. His little experiment had worked better than he had hoped! Who knows? His little Pokemon will be getting some new friends in the future....
But for now, he should simply head home.
After all, he had a new pet to take care of!