My PE Teacher Grabbed My Boobs

I have this creepy PE teacher, he is old, fat, and ugly. He always makes very strange and sexual comments towards us girls. I seem to be his favorite in class. I have large breasts especially for my small frame. Last week he "pretended" to trip in front of me and fell into me grabbing both of my breasts with his hands giving them a squeeze. I slapped him across the face. He sent me to the office and the principal believed him that he triped. I got suspended for slapping the teacher.