Being abused by my mother's boyfriend

My mother was at work and left me home with her new boyfriend. I didn't like him. He had squinty eyes, dirty hands, and terrible BO. He drank a lot and you could smell the alcohol on his breath a mile away. I didn't like the way he looked at me. It scared me. So I tried to stay as far away from him as I could. But he was bigger and faster than I was. He'd make me take off all my clothes so he could look at me. He touched me in places I didn't like. Then he made me touch him. He threatened to hurt me or my baby brother and sister if I said anything to my mother or anyone else.