Mother and son have sex in 2 seconds after father goes out

Asuka has a secret that she can never tell her husband. It was that he had a physical relationship with his biological son. It was supposed to be a one-night mistake, just to temporarily fill the loneliness that my husband doesn't care about. However, contrary to expectations, Asuka and her son's physical compatibility was outstanding. The two become addicted to the intense pleasure they have never felt before. As morals suddenly collapsed, the moment when they finally saw their husband off, they began to have a fierce exchange...