When her son's hand touched her nipple as he was massaging her shoulders, Chisato reflexively let out a lewd moan. It was the moment when the woman's desires that she had suppressed in order to support her single mother and son awakened. The rebellion that she had been suppressing for so long was great, and Chisato's body had become so sensitive that she orgasmed just from the touch of her nipples. Unable to control her desires, Chisato crossed the forbidden line with her son that night, and the next morning she went to work without a bra, exposing her nipples on her chest.