After preparing Sarah left to catch the bus to school. On the way to the back so she could sit alone a kid grabbed her arm. He said that if you want to go back there you need a special reason. Namely that it's the place people go to fuck, while everyone else covers for them. Sarah thought and decided if she was going to register as a freshman instead of sophomore she might aswell be the right age. She wished that she could prevent people from watching her have sex with people.
She grabbed the boys hand and said "I think it's our turn". As they started getting their pants off she felt the glow start. So she jumped right on top of the guy letting him pound her. Then the glow took over causing her to get younger, feeling yet another of the largest jumps. Going from 5' to 4' 9" her pussy stretched far and away the most to this point. Eventually she felt him cum inside her, then start to freak out. But she said it was ok.
Either way she needed to teleport home and switch clothes. So she jumped away when the bus got to school. But a problem came up. Her clothes were all to big. She knew if more wishes came she would always need to shop for more. So she made yet another wish, she could make any clothes she wanted fit her. Another jolt as she shrunk from 4' 9" to 4' 8". She was now 13 and it showed. But she was supposed to be in class.