"I wish I had a ten-inch penis with testicles the size to match."
Jon watched his member wriggle and bulge, descending down his thigh until it reached its new length. His balls grew until they were the size of satsumas. Jon was at first impressed with the sight of his genitals, but quickly realised his mistake. He'd intended for a ten-inch erection, but his new cock was ten inches long and flaccid! He shrugged and laughed at himself.
"It could be worse, it could still be a five-inch boner!" he beamed. "Anyway, there's no such thing as too big!"
Jon looked at the time. He was going to be late for school! He had to show off his new body to Karyn! Jon scrambled about his room, trying to get dressed. He picked up a t-shirt, which looked tiny on him now.
"I wish all my clothes were a perfect fit," Jon said to the wishing stone.
A moment later, his wardrobe had grown to fit his 6'4" frame. Jon hastily dressed, quickly washed and rushed downstairs for a quick breakfast...