Statutory rape, help?

Well I just turned 16 and I have this Tutor he's 18 turning 19. He told me if I wanted his trust back I'd send him a nude shot of me with my face in it. So I did and he said if I tell anyone he will show people and that it's his insurance he sent me one too. He knows I just got back from treatment for mental health issues and that I have severe emotional issues. He used and took advantage of me. He told me that when he tutors people he likes to reward them he said my reward would be his doing naughty things to me. It makes me think he had done this before. Then he got me to talk dirty to him and say that I wanted to do stuff with him. He came over t tutor me and we had sex it was a mutual agreement. He didnt want to use a condom but I made him and then sadly it broke in half. In California it's against the law. I'm planning on telling my parents but if the cops get involved what will happen??