Hiro looked over himself in the mirror. He reached into his buttock saddle bags, pulling out a set of clothes strategically padded to make him pass as a normal human being.
Meanwhile Guy takes a look at the potion. Hiro asks him, "Going to try it, too?", while putting on a pair of boots a jacket and some pants making him look a lot more human than before. Guy unstripped and dipped his fingers into the goo, "Well what do I have to loose? Besides I've always wanted to be a superbike", he grinned and looked back to Hiro, "It's not like it turned out bad for you.".
Nothing happened until Guy completely covered himself in the potion. At first his general body shape started to change. His muscle mass seemed to now concentrate on his belly, giving him a rather non flattering appearance. Hiro looked back at his friend and burst out in laughter, "Looks like you've drawn the short straw, you're going to be a fatty" and got over to him patting his belly teasingly. Suddenly his skin started to change. The texture turned into fabric at his legs and leather on his legs and upper body. Gradually his skin started to form seams and pockets. A pilot's cap grew on his head along with a pair of flying goggles. He probed his new clothes somehow there seemed to be some sort of soft stuffing he couldn't make out what it was. Hiro prodded his friend's crotch, feeling at it, "Well at least you've kept your balls." "Hey!" shouted Guy and Hiro looked up at him bursting out in laughter. Guy was finally able to get a look at himself in the mirror. His muscular form was gone, and he was fairly pudgy now. However he was wearing a stereotypical pilot's outfit. Looking at his face he suddenly realized, "I'm a raccoon now!", he turned and on the back of his light brown pants there was as bushy black and white tail. Hiro, got up to pinch one of the puffed cheeks below the black mask on the face of the raccoon. "Aww you're cute", he exclaimed before going back to groping the crotch area.
Suddenly Guy realized something, "I think I may have something up my sleeve". His crotch started to grow more and more, stretching against the fabric of his pants becoming one with it and going through it. At first it appeared as a black strip of rubber on his pants. Then it started to form ridges and bulge out even more. His member, already extended started to merge with his belly at the tip while disengaging with his ball sack from his crotch. Eventually it formed a whole wheel. Unlike the one of a motorcycle this one didn't seem to have any drive. Hiro playfully gave it a nudge and it turned quite a few turns from the momentum. Guy closed his eyes grinning and letting out a moans. That certainly felt good. Suddenly as if he was trying to push something out he wiggled his nose and a pair of propellers spurted out of them, "How's that for a trick? I betcha I could out fly you easily.". He spread out his left arm and it gradually became flatter and longer, fingers loosing definition and merging into each other. He would have turned it into a full wing if he had the space. "Yeah, but certainly not in here, you'd be to fat to fit in here", teased Hiro.