I just walked in on my roommate and his girlfriend fucking on our living room floor. I just opened the door and I saw him pounding her pussy like crazy. I just kind of stood there dazed at what was going on. Then the girl asks me if I wanted to join in! I said but I definitely fuck her, do you guys think I should fuck her with my roommate? He didn't object to what she said. I'm moving out in a week because my military leave is up.