He treats his sister like a sex toy

Since my parents died, my older brother has been taking care of me. it's just the two of us, and that has changed him. he has become very possessive. he hardly lets me leave the house and he doesn't want me to see or talk to other men. at first i thought it was just fear, that he didn't want anything to happen to me. but soon things changed. everything at home has become darker and more wicked. my brother no longer sees me as a member of his family, but as his submissive and treats me like his sex toy. i'm only there to please him when he wants to. i get in a bad mood every time he tells me that he is giving me orders, because he quickly drops his pants and shoves his big cock in my mouth. he loves to throatfuck me.