Mom and son under the sheets have sex games.

Their relationship had been strange all their lives, she could not deny that there was a very strong bond between them. However, as they grew up that bond was changing, it was no longer love games, it was no longer affectionate kisses. Their relationship would become more and more incestuous, they could not deny it, mother and son were dying to be together. Her husband had no idea what was going on, every time he left for work.  When she heard her husband leave she would run to her son's room and crawl into the sheets. He would greet her with his hands open and a cock ready to plunge all the way in.