On their way to school, one of Karyn's friends, Stephanie, joined them.
They talked about girl-type stuff, while Jon just walked beside them. Then, after a few minutes, Jon was shocked when Stephanie began to take her shirt off!
"Hey, what are you doing?"
"Huh?" she asked.
"Why are you taking off your shirt?"
"Well, it's hot out here." She lifted off her shirt, exposing her chest. It was weird. Apparently, since girls' chests are just like guys' chests, there is no such thing as indecent exposure of breasts. Because breasts don't exist!
When they got to school, Jon saw a few other girls with their shirts off. He wondered what else would be different, if girls didn't have breasts.