Showing my penis to my mother

I could not believe my son had such a massive big cock. He groaned loudly and placed his hands against the back of my head. Then without saying a word, Mike began to rub on my wet pussy, as I worked my hand over his big, young cock. Every time I lifted myself up slightly I would bounce down a little bit harder, slamming my ass against his fat hard cock. Looking down, I noticed that the duvet cover was stuck up over his lap, his massive erection creating a tent pole underneath it.