Frank didn't need to say anything else, he grabbed his shorts and dropped them to the floor, then wrapping his hand round his c**k he took a few steps forward, stood in front of me and immediately started to jerk himself. I was trying to be cool. What a stupid idea! The very thought of remaining or even appearing cool when my son was openly m**********g in front of me and trying his best to spray me with his spunk was ridiculous. I let my emotions go and started to lightly rub my p***y in front of him. This caused Frank to groan in excitement and I could see he was about to c*m. He had only being touching himself for a minute or so but was obviously so turned on he wasn't going to wait.
He took another step forward and shouted, "Mum! Oh mum, I'm cumming." His first burst shot between us a
