They were in their room for their sleep over (They're all around 16) and I was asked to walk in, they grabbed me and taped me down to a chair, I was yelling for my mom to help, and they taped my mouth up. They took off my pants and each started to suck on my penis. Then they decided to go into a three way on my sister's bed. After they finished they let me go, but said if I told anyone they'd kill me. What should I do?!