Incest Big Butt Mother Swapping

Yuko realizes that her son has feelings for her that are even greater than his mother's, as he watches her masturbate in his room and makes him the protagonist of an erotic novel. He consults his friend Reiko about this, but she tells him an even more surprising fact. That means that Reiko was similarly seen masturbating by her son-in-law, and they even ended up having a physical relationship with her. Taking Reiko's words to heart, ``A mother is someone who accepts everything,'' Yuko finally begins to have a relationship with her son, but...