My wife and I were having sex in the living room of our first-floor apartment one early evening, but since we left the lights on, we forgot to close the blinds. I was sitting on the floor and my wife was sitting on my lap facing me. Suddenly, she pointed to the window, and when I turned my head, I saw the upstairs neighbor walking up the steps and looking at us through the window! I waved for him to go away, but he just put his packages down and sat down for a show! We started laughing, since there was nothing we could do, and if my wife stood up, she would have given him a full show. Instead, we inched our way across the carpet, sliding on my bottom, my wife hiding her breasts with my torso. As soon as we got out of view at the hallway, we uncoupled and I covered myself so I could go close the blind. We moved out of the apartment soon after that!