My stepbrother's wife plays with her pussy in the living room in front of me

My brother's wife is a very hot slut. She likes to masturbate in the living room when my stepbrother goes out. She gently undresses in the room, touches her big natural tits, touches her small pussy and shows off her big ass. I love seeing her because I can't help but see how she enjoys herself while she masturbates there in front of me.