Oh my God (and I almost never use that phrase), I didn't know that little kids were committing rape!

Well, I can see why you don't trust anyone after that. My best advise is to tell your parents about this. After that, if you feel you're up to it, tell your boyfriend about it too. If he really cares about you, he'll understand and try to help you. If he doesn't and tries to rape you, immediately run and tell your parents.