Suddenly, Mikey felt himself grow taller and older. His body became more muscular, like the guys he had seen at the high school. And his "member" became larger as well (also like some of those same guys at the high school). When he stopped growing, he rushed to a mirror to look at himself.
He was still himself, but was seventeen instead of ten. He was a teenager. And he was dressed like one too.
What Mikey didn't know was that his grandfather gave the stone to Jon because of his age. He didn't want to give the stone to someone who was too young, someone who wouldn't use it wisely.
So, after Mikey made his wish, the stone made him Jon's age, so that his inheritance of the stone was completely justified.
But this wasn't what Mikey wanted. How was he supposed to live as a 17-year old? Going to school would be hard enough, since mentally he should have been in elementary school instead. But there were other things that he wasn't prepared for either.
