When the hand of her son who was massaging her shoulder touched her nipple, Chisato reflexively let out a disgusting voice. It was the moment when the desire of a woman who had been sealed away to support her mother's only child's family awoke. Her recoil that she had suppressed for a long time was great and Chisato's body was so sensitive that she would cum just by touching her nipples. Chisato, who can no longer control her desires, crosses her forbidden line with her son that night.
