Work Text:
Oshawott hadn't been a trained Pokemon for very long, but was already acclimating well to the lifestyle. His Trainer, a girl named Hilda, was clearly very dedicated to the craft and worked as hard as possible to make him the strongest Pokemon she could, already leading to them winning their first Gym Badge. It also helped that Hilda was, for lack of a better term, hot, sporting a toned yet voluptuous body that she loved showing off in her tight t-shirt and tiny denim booty shorts. The views were slowly taking a toll on the Water-type, and soon enough, he'd reach his breaking point.
It was a rest day from training at the house Oshawott and Hilda shared, and Oshawott was wandering the abode, looking for something to do when he heard his Trainer say, "Ugh, where is that stupid thing?". Following the voice, nothing could've prepare Oshawott for what he'd see.
It was Hilda, bent over with her huge ass in the air and wiggling around as she rummaged underneath the couch. "I know I left my X-Transceiver here somewhere!", Hilda's voice came again, but at this point Oshawott wasn't paying attention to his Trainer's words, utterly hypnotized by Hilda's bubble butt swaying around in front of him. "Dear Arceus", Oshawott said under his breath, but loud enough for Hilda to know he was here, making her say, "Not now Oshawott, I'm kind of busy right now", going right back to rummaging around under the couch, and at that point, Oshawott could contain his lust no longer.
Before he could stop herself, Oshawott reached up and very roughly smacked Hilda's thick ass as hard as he could, watching it jiggle for him. Crying out in surprise, Hilda asked, "Oshawott, what do you think you're doing?! I need you to help me find my X-Transceiver!", to which the Water-type replied, "Oh I will, just as soon as I help myself to this golden opportunity." Hilda could hardly believe what her Starter was saying, but in her current situation she had no real way to stop him, so she figured she might as go along with it. Oshawott then buried her face between Hilda's huge round buttocks, and starts rubbing her face up and down her ass crack, using her hands to squeeze, knead, and generally play with his Trainer's bubbly bottom, still giving the occasional spank, loving the sight and sound of those yummy cheeks bouncing and jiggling with each lustful smack.
Deciding to take things further, Oshawott reached for the crotch of Hilda's shorts and roughly pulled them down along with her underwear, baring her thick and bubbly behind. Oshawott spread the juicy jiggly cheeks to bare her delicious pucker, which the Water-type wasted no time in licking and lapping, feasting on her asshole like it was his last meal. Hilda in particular was starting to enjoy herself, far more than she ever expected to, moaning and whining with pleasure as her backside was reduced to a plaything for her Starter.
The pleasure became too much for Hilda and she came, her asshole spasming around Oshawott's tongue as she squirted against his smaller body. After removing his tongue with a slurp, Oshawott brandished his by now rock hard cock, much larger than most would expect from such a tiny Pokemon, aimed it at Hilda's tight asshole, and forced his way inside.
"Ah, ah, ah, ah!", Hilda moaned as Oshawott pounded her ass, again showing surprising strength for his size, a testament for how well Hilda trained him, "Don't stop, don't you stop for anything!", the thick-assed Trainer slamming her bubble butt back against Oshawott's forward slamming hips. Oshawott struggled to hold on from the massive ways of Hilda's jiggling buttocks, but took it in his stride, hammering away at his Trainer's rectum with all his might. Hilda never could've imagined getting fucked up the ass by her own Starter would feel this good, but now the last thing she wanted was for it to end. As he pounded, Oshawott ogled the way Hilda's enormous ass bounced with a series of "plaps", prompting him to give it a smack, making her cry out and say, "Yes, Oshawott, spank me! Smack my fat ass as hard as you want!". "Gladly", Oshawott replied, smacking Hilda's thick booty as hard as he could in tandem with his thrusts, and from the way Hilda moaned, whimpered, and squirted, she clearly loved every second of it.
Eventually Oshawott couldn't go on any longer and came, flooding Hilda's bowels with his spunk. Pulling free and hopping off of her, the Water-type said, "A deal's a deal, boss", quickly darting under the couch, an easy feat given his small stature, and he pulled out the X-Transceiver that Hilda was searching for. Getting out from under the couch, Hilda said, "Good work, Oshawott", taking the device out of his hand, "we should try this again some time", to which he replied, "I like the sound of that"", and as Hilda sauntered off to get herself cleaned up, she thought to herself,
'If this is what Oshawott can do now, Arceus help me when he evolves'.