After I heard that the message was for Brian I was about to push the delete button and not even worry about the message but I was interested. Curiosity got the best of me and I figured maybe I would get something I could make fun of her for. All of a sudden a long moan echoed out of the phone and bounced around inside my head. I then stopped dead in front of the store in shock. Several short moans later and there was not doubt that I was listening to my sister masturbating, this was something that her boyfriend was supposed to hear not her brother. .....