I only recently started masturbating after some of the girls at school started talking about it. Of course I had fingered myself before but never had an orgasm. That changed when mom got a new guy after dad left ages ago but they were'nt having sex anyway.
When they did I usually put the headphones on anyway. This guy came around a few times and then mom announced that Gary would be staying over so this time I decided to listen in! I heard the first bed noises and moans around midnight and started putting the finger in myself and got very wet. I then went outside their door and heard some frantic thrashing and moaning as I got more and more excited and tingly between the legs until I heard Gary say 'I'm gonna come babe' and I had my first orgasm that made my legs shake.