My room is small and I share it with my sister, who is a college student! But her friend is coming to stay! The futon is crammed into the small room, and she sleeps in thin clothes, so when I wake up, I see my sister's friend's bare breasts and ass sticking out, right in front of me! I couldn't help but touch her, and I thought she would get angry, but instead she asked me to, and I ended up having sex with her while she was sleeping!