We're Going to Pumpkin You Up!

"During the annual Hallows-fest, PumpMummy X had always dreamed of getting a prize, and this was his year! With a special, super, ancient fertilizer, he bulked up and grew to get his chance for the "Biggest Pumpkin" ribbon. His plan seemed to work, until the judge accidentally knocked over a nearby glass of water onto the mummified dogs gut. It seemed fine at first, but after a small rumble in his hollowed gut, he found himself blowing up into a giant sphere, with his head and paws submerged slightly and all his bandages torn off. He did win the prize this year, but he had to stay like this for the rest of the festival, with somebody occasionally dropping water near or on him, causing the effects to still happen and blow him up a bit more. This was going to be a long festival..."

Information Helpers: dracokid400 and IceandFireGuy