My brother in law (25) and me (13) he got me drunk and bought me vapes and once I was drunk and could barely walk he made a move on me he got on me and penetrated me I didn’t try to do anything which I wish I would’ve because after that first time he did it over and over using vapes which I was struggling with an addiction to same with weed he would give me that then do that. He is a convicted sex offender he has been to prison twice for it my sister (23)?has a child with him that she had at 16 she got pregnant at 15 well he was 18 I want to tell my parents but I don’t want to hurt my niece. My parents know about him having sex with a 16 yo. He brags about having sex with my other sister (19) from when she was (13)