My college girlfriend was always a little paranoid about me cheating on her (even though I never did), so when she went off for a month study abroad program over the summer, she left me an 'assignment' : a Playboy Newsstand Special Edition. She told me that she wanted to be sure I wasn't 'suffering' while she was gone, and said she wanted me to masturbate to that magazine twice (!) a day while she was gone. And just to be sure I was doing my homework, so to speak, she said I should shoot my cum on a different page each time so she could count them when she got back.
Although my girlfriend was pretty open-minded, I wasn't sure she was serious or not, after all, she was the jealous type and I wasn't sure if this was some kind of test to see what I would say. When I told her to stop kidding around, she said 'I'm serious, and I want you to do the first one right now.' When I hesitated she said, 'Okay, then I'll go first'. She then took the magazine from me, took off her shorts, sat on my couch, and started rubbing her pussy while flipping through the pages. After a few minutes she told me to hold the magazine open to a certain page so she could use both hands, and then brought herself off while staring at a very hot petite brunette. 'Your turn' she said when she recovered, and I pumped a massive load all over the same picture.
Well, I did manage to complete my 'assignment' while she was gone. She spent many evenings masturbating in front of me to those cum-stained pictures.
Who would cheat on a girlfriend like that?