When I was 18 my girlfriend and I used to have sex with our boyfriends in a one room studio apartment. Her boyfriend was the only one that had his own place. I remember turning off the lights so we wouldn't embarrassed ourselves naked in front of each other. It always turned me on to have sex on the floor right next to my girlfriend and her boyfriend. I was sucking dick when I heard my boyfriend voice from across the room and it was then when I realized I had the rung dick in my mouths. !God! how embarrassing because later my girlfriend told her boyfriend said I did a good job on him.