Futa-Jon: Little brother changes

"Hey watch where you going you oaf!" Mikey cried out as he narrowly avoided being knocked down as Jon bumped into him as his older sibling rushed to the bathroom.
As he regained his balance and picked up the comic book that had been knocked from his hand by the impact Mikey failed to notice the picture on it's cover changeing as Spider-man's hips expanded and the Super-hero grew breasts. What the twelve (almost thirteen) year old did notice was a iching sensation as his nipples grew slightly larger and the small beginings (but still slightly larger than most girls his age) of breasts grew under them.
As Mikey quicky began scratching the now larger nipples on his shirtless chest with one hand he only just noticed a silght twisting in his belly as his internal organs shifted around to make room for new female ones, followed by a split second of discomfort in his hips as they changed shape and grew slightly larger while at the same time there was a slight shifting in "his" crotch as a pussy grew in just below his dick along with a small amount of new pubic hair.
Distracted by the pleasure created by the scracting of his new nipples that was quickly turning into simply playing with them Mikey Ignored just about everything else as he slowly made his way down stairs to breakfest.