Mikey returned home after school. He knew Jon wouldn't be home for at least fifteen minutes, so there was plenty of time to get the stone back to his room before he got home... Or maybe he should keep the rock and wish Jon had forgotten about it, or at least make a wish that Jon could never make and wishes about him? Plenty of options to consider.
He then started thinking about how mean Jon had been to him lately. There was a five year age difference between them, and to add to that, Jon had gone through a growth spurt recently, and although he wasn't exactly a jock, he did play sports fairly often, so Jon was always using his size and strength against him. He always called him, "runt" and "shrimp", and since Mikey had recently started having to wear glasses, "nerd". Also, although they were supposedly "just friends" Mikey thought Jon must be hooking up with Karyn and was jealous. He wanted to mess with Jon, so he thought he'd make some changes, just for awhile, to teach Jon a lesson. Unfortunately, Mikey hadn't read their grandfather's letter, so he didn't know wishes were permanent.
He held the stone in his hand and said, "I wish Jon was the nerdiest kid in school. I wish he wore extremely thick glasses, had greasy hair, braces, and acne. I wish he was only 5'4", and very skinny and weak."
There was a flash, and Mikey tried to picture what Jon must look like now. Then, not satisfied with just turning his brother into a stereotypical nerd, he continued.
"I wish Jon has boobies as big as Karyn's, and needs to wear a bra, and wears panties, too. I wish whenever he is confronted or bullied, he usually starts crying and occasionally wets himself. I wish although he secretly has a crush on Biff Meadows, that he has been dating Peggy Baxter for two years." Peggy Baxter was the girl who lived down the street. She was overweight, had bad hygiene, and was always mean. Finally, he decided to make one wish for himself, Jon would be home soon, and he could take a look at his handiwork. "I wish that when Jon comes home, the first thing he sees is me making out with Karyn on the couch."
There was a flash, and Mikey suddenly found himself with Karyn on the couch. Mikey had never even kissed a girl before, and now he was making out with a hot blonde high schooler. Before he had much time to enjoy it, the front door slowly opened, and in stepped Jon...