"Jennifer, it's my turn still!" Mike said sounding very much like his 13 year old self.
"You need to be careful. You don't know the rules yet!" Jennifer warned.
"No you just don't want to share." Mine lifted up the money and said, "I wish I could be so sexy that the whole town would be turned on by me! And I wish that I have clothes that would fit so I don't have to get new ones."
"No" Jennifer shouted. "You're wasting it all." But to her surprise, only two of the bills went away.
Then, before her eyes, her brother began to change again. He gained a deep tan and his muscles ballooned out even more giving him a ripped look. His eyes seemed to shine with a lighter more captivating brown and his hair changed to look more masculine. His legs expanded and gained a light dusting of hair. His underwear strained under the expanse of new muscle. Mikes package began to expand pushing the fabric to its limit. Just as the briefs looked filed to their breaking point, they began to shift and change. Her brother's tight Batman novelty briefs changed into a tight pair of black posing trunks with a Batman logo on the front. His larger than average endowment was still stuffed tightly in the fabric but it wasn't straining to it's breaking point.
Jennifer was shocked to see her brother become such an Adonis. She was also embarrassed that she had become slightly aroused by his transformation. She covered herself with the remains of her clothes so he couldn't see the wet crease forming in her panties. Mike looked past her to the mirror and began to feel himself up, admiring his expansive chest and adjusting the bulge in his shorts.
Jennifer grabbed the money from him and tried to figure out why his change had only cost two dollars and how she could fix the situation without losing all her chances.