A warm, summer breeze blew across the many trees that weaved together to create the thick canopy of Viridian Forest. The branches rustled, sending leaves to the tall grass below. The morning sun breached through the cracks, letting rays of light entice the Pokémon that live within to wake from their peaceful slumbers.

But one denizen hadn’t slept a wink, something within their nature kept them from sleeping.

At the edge of the tall grass, right beside a tree, a Rattata rested on its back, a rarity within the woods, their species preferring the outskirts. The purple-furred rodent breathed rapidly, the thick clouds it formed rubbed against their plump, needing sex. Said sex was a slit that glistened with sexual secretions that dripped onto their fur. This confirmed two things, the Rattata was female, and she was in the middle of a heavy heat.

The Rattata had the immense need to breed, to have her quivering puss filled, to be deflowered by a strong mate, purely ravished to the point where walking would be a pipe dream. Yet, where she lived made her dreams nearly futile, the only fellow rodents that lived within Viridian Forest were Pikachu, yet they were rare as Mew. And thanks to the strength of this carnal, biological urge, she could barely walk a mile without needing to quench that need by rubbing it against something, or herself, as she did now…

Her cream forepaw reached down and stroke at her slit with feral passion. The rat’s actions were inspired by those of female trainers she had watched from within the grass. But unlike her, she wasn’t doing this for the need of pleasure, but to stop the burning within. Her fingers got more and more vigorous, to the point her squeaks of lust could be heard by fellow Pokémon.

It was no surprise that when she came for the first time that day, she screamed out. Her warm cunt shot thick juice over the grass, giving it a unique sheen that glowed in the warm sun.

But it wasn’t enough to come just once. Once she came, the erotic fire within roared to life even greater. When the ecstasy of orgasm came down, she went back to masturbating. This time, she used both hands to thoroughly scratch that itch which seemed impossible to get rid of.

Her fingers explored even more, venturing inside her hole. The size of her digits wasn’t enough to satiate the craving for cock that made her mouth drool, visioning the sensual warmth radiating from it, the thick girth, and that musky scent and taste she desired. If only she could find someone like that.

As a second orgasm began to well up and erupt from her. The rat’s hands went still as the loud sounds of grass filled the area. She could tell someone was coming and it was big! All the pokémon knew whatever was coming was dangerous, and fled their homes, in hopes of returning when it left. But despite that fear which barely overwhelmed her arousal and pushed the need to escape into her mind, she couldn’t move a muscle. Fear had frozen her, the only thing she could do was continue her rapid breathing, as whatever it was came closer and closer. Until she was within the massive shadow of the creature.

A human! And a pokémon trainer to boot, one thing all pokemon feared. The adult man looked down at her, a blush of confusion on his face, having never seen such a sight before.

The Rattata should’ve been scared, but something about the human that towered over her made her feel something else. It could’ve been the fact that she was unintentionally edged by his sudden appearance, or maybe from how the intense heat took over once more, but her crimson eyes didn’t draw a bead with his own, but instead, his tight-fitting shorts. Her imagination began to run wild and her breathing quickened even further. It made no sense why she felt this way for a human, yet wanting to see what lay beneath that article of clothing was enough for erotic curiosity to fuel her next action.
By some heat-driven feat of strength, the Rattata pounced him, shoving him to the ground. With him now in place, she looked at her target, the seemingly growing bulge in those shorts. Using her sharp fangs, she bit right into that clothing, dragging it and the underwear down just enough to let his suddenly erect manhood spring out from it.

To the horny normal type it was massive, being bigger than her, with balls her paws could barely grasp. His potent masculine musk smelt like nothing she ever had before, like the smell a dominant partner would have. It tainted her brain even more than her heat did, she didn’t care what the human would do to her, she had to taste.

And taste she did. Using her paws to help raise herself up to the tip, she started licking at it, that coarse tongue making him moan, having never felt something like this in his life. Licking was the best she can do, her overly large front teeth made it difficult (and painful) to try oral. Yet she was able to bask in the luscious scent of his balls, slathering them with her tongue and coating them in spit.

As she went back up to kiss his head, his hands grasped them. She was worried that her actions finally put her in trouble, but that was far from the case. The trainer sat up, and once in a comfortable position, he aligned that overly horny rat’s sex with his pre-bubbling, spit-lubed head, facing each other. 

She wanted a thick cock to ravage her, but with how thick and large he was, was much more concerning. She was concerned if that would even fit, without tearing her in two. But there was no more time to worry, his cock pushed past her narrow entrance, and penetrated her virgin lips.

With a loud squeak of pain, the human stopped, he was going to pull back out, knowing this wouldn’t work; but the Rattata’s hands clawed into his skin, and her eyes looked into his own, they were filled with immense passion. While the pain was unbearable, the feeling of his throbbing penis seemed to be perfectly scratching that itch.
It seemed like the trainer understood her well. Slowly, he pushed her back down, moaning as his cock delved further into that forbidden fruit. Once the human and rodent found the amount she could take, he started thrusting in and out, moaning in tandem with her squeaks.

 His precum coated the Rattata’s inner walls, her body was on fire, and the way his cock was tearing her apart was amazing.

The trainer felt his orgasm brewing, one which caused him to go much faster. His cock almost went fully inside her, much to the sudden shock of the rat, with a look of pain on her face, but hearts in her eyes. The head of his member soon penetrated her womb and with that, he came.

 A powerful torrent of cum shot inside and out, swelling her belly and starting to come out of her mouth with how much there was. Yet despite how intense in both pain and pleasure it was, she couldn’t wish for anything more, the way his human seed extinguished that heat was ecstatic, there was no way she could ever try another pokémon’s cum, after being fucked by a human. 

Once their joined orgasm ended and the Rattata was lifted off his rod. The rat just laid there, cum dripping from her cunt and mouth. She looked up, desiring more from him. She watched as he presented a pokébal to her, which she touched with her nose, waiting in anticipation as she would now be his pokémon, and potential mate, if this ever happened again.