Belly Jellies
Johnny headed over to the local drug store near his place to pick up some candy.
He figured he could go for some jelly beans and so he went on down to the sweets aisle and it was here that he encountered a special bag full of jelly beans.
At first he thought they were jelly bellies but upon taking a second look, he realized they were a different brand altogether.
"Belly jellies. The Jelly beans that acoomidate your size."
Odd name for candy and even odder tagline which got a chuckle out of him.
And so he headed to the checkout and was rung up.
"Let me know how those are." Said the clerk. "They're very brand new and the manager says that he doesn't even know who sent these."
Johnny nodded and got the candy he paid for and left.
Back at home, he decided to have some leftovers for supper and went online to chat with friends.
As he chatted he got out the jelly beans he grabbed one and noted how oddly shaped they were.
"These are some oddly shaped jelly beans."
He then realized that the one he was holding right now looked a lot like the head of a hippo.
Well not one to judge candy by shape, he popped the bean into his mouth and chewed away.
"Mmm, not bad tastes like mixed fruits."
He then went back to chatting with friends when suddenly his rear began to inflate and grow fat, a tail burst out of his pants and his belly grew out rounder making him adjust his seat.
His legs grew think and rounded out like tree trunks and his feet went flat, toes going round into nubs.
After hitting the enter key to send a message to his friends, his thickening arms led to his hands which became thick and nubby like his toes.
"What the...?!" Is what he exclaimed upon seeing his hands transform when his face took on it's change into a big fat hippopotamus snout, his ears rounding up to the top of his head.
Johnny jumped out of his chair his hippo feet stomping loudly on the floor which caught the attention of the people below him.
"Johnny? What on earth are you doing up there!?" Yelled a female voice.
"Sorry mom, just moving some things around!" He called out, his voice still sound almost the same but a tad deeper.
He then sweated a bit as he grabbed the bag of belly jellies.
"Is this what they meant by accomidating size!?" He mumbled to himself "This is ridiculous!"
Upon looking over the back he saw the many other flavors on the back, one which caught his attention was a pink bean, he rustled his hand through the bag and managed to get the one with a grubby hand and ate it quickly.
"Hmm... bacon?" 
Johnny waited for a bit and saw his big belly turn pink, maybe it was turning him back into a human?
Or not! He witnessed his nubby fingers grow hard and black into cloven hooves as the pinkness spread up to his changing face.
His tail grew out all curly while his feet took on their own hooved form.
His snout shrunk and turned into a flattened piggy snout while his ears grew large and floppy.
"Okay!" He grunted "That didn't work..."
His foot hoove clopped about as he paced wondering what he could do to fix this.
"I could swear I hear a farm animal up there..."
"Just a youtube video ma!" He said before letting out an audible squeal.
He checked out the bag again and saw a brown bean.
"Lord knows what this one might do!" He said in embarassment as he took the brown bean the best he could with his hooves and munched on it.
"Oh that one was tasty was that one honey?"
Now his body grew brown and fuzzy, his foot hooves growing out into clawed feet, his tail shrinking into a fuzzy little nub, his hooved hands becoming paws and his snout growing out into a powerful black nose and his ears taking a rounded shape.
He roared out in frustration over all this changing.
"Right, I'm coming up there!"
Now he had reason to panic, if she saw him like that, she would immediatley have a fatal heart attack and that's the last thing he wanted!
He looked over the flavors one last time and finally saw something, one of the beans looked like a human head smiling, and the discription read "hominid."
"Geez I am so dumb!!" He growled as he reached his claws into the bag and found the bean he wanted and ate it.
"Huh? It has no flavor at all."
Much as it wasn't too tasty, it did in fact work as his fuzziness receded, his claws going back into human finger and toenails, his big gut went back to the original shape it was in and his snout and ears becoming their regular human shape as well.
His door opened and there stood his mother with an arched eyebrow and all she saw in Johnny's room was her son sitting at his computer with a sheepish look.
"Try to keep the noise to a minimum, dear. Anyone would think you had a zoo in this room..." She said as she went back downstairs.
Johnny then looked at the bag of belly jellies and realized that these were no ordinary candy he chuckled to himself as he decided he would have some fun with these things.