Treats his sister as a sex toy

since my parents are dead, my older brother took care of me. We are just the two of us, and this has changed. You become possessive. Almost not let me get out of the house and does not want me to see or speak with other men. At the beginning I thought that it was only fear, that he didn’t want me to happen anything. But soon, things changed. Everything in the house is become more dark and perverse. My brother sees me more as a family, but as his property. As his sex toy. They are only there to please him when he wants to. Makes me ill every time I say that I am a good girl, then I pull down his pants and penetrates me.