After I graduated high school, a friend of mine suggested I move into the building next to her. She was quite plain, flat chested with narrow hips. But, she had a knockout ass. She was helping me move in when she noticed that our apartments were on the same floor and in fact were across from each other. She remarked that she would have to watch herself when she was getting undressed. Hmmmmmm!!!
Anyway, about a week later (a Friday night) I had been out and I came home and was undressing in the dark for some reason and there was Nicky naked in her room. I watched for a while and masturbated in the dark watching her. She then went to bed (and was reading with a bedside light). I had come and was looking 'pretty good'. So I thought, what the heck. So I got dressed and re-entered my room making sure to turn on all the lights. When I got down to my underwear I made sure I touched myself and made my penis look as big as possible without getting an erection, I then crawled into bed and turned out the light. Sure enough, she started to masturbate with a dildo. Awesome I thought.
This went on for a couple of months, I let her watch me masturbate (just left my light on) and she 'let me' watch her. Turns out she was bi (or lesbian I'm not sure which) and 'let me' watch her and a girlfriend. When I had someone home for sex, I made sure I left the light on for her.