I was flatting with a group on friends when we were all at University. In the room next door to mine was a friends off/on girlfriend called Emma. When this story took place I think they were apart but can't really remember.
Anyway I have always been pretty highly sexed and jack off almost every day. In the room that I had my bed was very, very squeaky and it was hard not to make some noise when wanking. One night I was particularly horny and having a great wank and must have made a fair bit of noise from the bed as I became aware of the squeaking. I stopped wanking for a minute but heard some bed squeaks from Emmas room. Then they too stopped. So I started again and so did the rhythmic noises from Emmas room. This went on for about 40 minutes until I couldn't hold back and shot my load. Emma continued on for a few minutes until I heard her speed up and then groan. This then went on every now and then for about a month until she moved out.
We never said anything about it to each other but we both would smile at each other the morning after one of these sessions.
As she had been a good friends girlfriend I never tried to get it to be anything more than it was. She did one night when she came in and undressed me and helped me to bed but nothing came from that but I remember her looking at my cock when she took my underwear off. I also hear her jilling one night when I brought a girl back to my room and that was a real turn on as well.
I still jerk off thinking about those sexy days.
I have other stories that I will tell sometime.