As an adult this whole story sounds ridiculous. Seeing someone's nipples through a shirt is no big deal. High school on the other hand can be merciless. I'm not sure why there's this assumption that it was only the male students taunting her though. The story doesn't even imply such a thing. When I was in high school the girls were generally more ruthless to each other than the guys ever were to them. I think she will win the fight with the school board, but I doubt the school can really do anything about the other student's interactions with her outside the class room space.