You catch me (your girlfriend) masturbating while I thought you were at work. I'm moaning and talking dirty to myself while fantasizing about the new hot trainer at the gym. You continue to spy for a few minutes but when you hear me moan another man's name you make a sound and I notice you watching me! I am so startled and ask how long you've been standing there!? You confront me about the other man and I confess I have a little crush. But to my surprise, you are turned on by the idea of me with another man and you get your cock out to join me. We continue to masturbate together while I tease you about taking another man's cock.