So I'm 18 years old and in school. I am a clopper. Anyway one day in class I leave my phone on the desk and my "friend" pick it up goes in history and sees "sexy rainbow dash" and shows some of his friends. I quickly grab it While they say "Dude WTF" (None of them know I'm a brony no less a clopper) I say that it was for a prank (Which I'm known for doing) and then he does a lie test. I pass it fine but he says he also saw other stuff (Such as regular porn but he won't tell anyone) So school ended and now I have no idea what to do and scenarios keep popping up in my head about people saying stuff about me.

Any advice