Momoka, who has a strong sexual desire, is not satisfied with the unsatisfactory sex she has with her husband who hurt his back. - ``You used to give me shite two or three times...'' he says, unable to suppress his overflowing lust and comforting himself with masturbation. - One day, Momoka is worried about her son's strange behavior, but she notices that he has an erection. - I was surprised but kindly said, ``It's normal for a man to have an erection,'' and when I reached for his crotch, he started saying, ``Mom will give you my shit...''.