a nice little story for you guys i wrote to break my unexpected hiatus. i wanted to use this plot for an april fool's day themed story, but unfortunately i was not here then. i'm still glad to be back!:D
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A prankster on our hands

a young Tepig was playing happily in his favourite playground. He was just cheerfully going down the slide and riding on the swing. He saw the figure of a prankster Snivy, who played tricks all the time, with a cup of ice water sneaking up behind an unaware Pachirisu in a diaper. Swiftly, Snivy dumped all of the ice water right down the back of pachirisu's diaper. She squealed from the icy feeling, then she ran off while holding the back of her ice-filled diaper. That sight made the mischievous Snivy snicker to himself.

"well, I admit that was kinda funny, but still pretty mean.", Tepig said to himself. "let's see what he does next." and so Tepig watched Snivy seek out the next victim. Snivy spotted a cute Minccino in a diaper and began to sneak up behind her. Then Snivy quickly yanked off the Minccino's diaper, leaving her naked and blushing. Before she could run after him, Snivy ran off while laughing. "ha ha! you're all naked and you can't catch me!", Snivy taunted. Minccino just stood there trying to cover herself up, while some others passed by and giggled. Minccino was steaming mad, and it definitely showed. "grrr...somebody really needs to get revenge on that meanie!", she muttered to herself. "don't worry, i'll get him back," said Tepig. Just then, he spotted a water hose in the corner. "and now I have the perfect idea," he said with a little smile as he walked over to the hose. "Snivy won't be able to get me if I'm all huge and sloshy!" Then Tepig stuck the hose into his mouth and turned it on to full blast.

Tepig's belly grew and sloshed with cold water. "yes, it's working!", Tepig spluttered. "my belly is so full now. this is gonna be good!!" He continued to fill himself up until he could hold no more. Then he took the hose out of his mouth and marveled at his water-filled form. he was now big and tall enough to soar over most of the playground. He wiggled and bounced as he walked towards Snivy.

Snivy was looking around for more victims, when suddenly behind him he heard "hey Snivy!" and felt a slightly cold tap on his shoulder. "ugh, what do you want Te-" he began to say, but then his jaw dropped. He saw the huge figure of the water-inflated Tepig looming over him. "looks like we've got a little prankster on our hands," said Tepig down to Snivy. "It's payback time. Don't worry, it won't hurt, but you'll definitely feel it!" Tepig bumped his huge belly onto Snivy, causing Snivy to fall back. Then Tepig sat directly on top of Snivy with his huge bloated bottom.

"Come on, really? This is unnecessary. Let me go!", said Snivy as he struggled. "nah, you're staying under my butt. what, you mean you don't like it?", Tepig said tauntingly. He jiggled his bottom to make Snivy uncomfortable. After some time, Snivy was somehow able to slip free, and then he spotted the hose. "oh no you don't!" Tepig said, but Snivy was already there with the hose in his mouth, turning it up to full blast. He very quickly inflated with water, making him the same huge size as Tepig. "now you're on, Tepig!", said Snivy, and the two engaged in a belly-inflated fight. Well, if you would call it fighting. Mostly they forcefully bumped their bellies and swatted their sloshy arms at each other. Tepig was about to lose, when they were both stopped by Minccino's voice saying "Hey, let me join in on the fun!", they turned to see that Minccino had a huge form too now. "looks like you've grown," said Tepig past a surprised Snivy. "definitely!", said Minccino, proud of this accomplishment. "I stuffed myself with so many fattening foods to get to this form. now I want my little taste of revenge. Care to join me, Tepig?" Tepig nodded, and with that they went to either side of Snivy and slammed their bellies onto his. all the water shot out of snivy, causing him to shrink and fly around like a deflating balloon. he landed at his regular size, and minccino and tepig looked over to him and smirked. "no no no I'm sorry! I'll stop with the pranking, I-" his sentence was stopped by the force of minccino's and tepig's massive bottoms sitting on top of him. "not again..." said snivy. he knew they wouldn't let him escape this time, so he just sat there with a grumpy face.

"so what should we do after we're done with him?", asked minccino to tepig. "how about we stay outside and play with our bloated forms?", tepig suggested. "besides, it's not like we'd be able to fit through any doors!"