กูเย็ดแฟนสาวของเพื่อนกูโดยไม่ใส่ถุงยาง

My stepbrother takes his new girlfriend home after watching a movie... She is quite formal but when I enter the room I see that my stepbrother is resting while she is next to him masturbating... My sister-in-law is such a slut that she decided fuck me since my stepbrother didn't pay attention to him