One day, Mom accidentally catches her son masturbating. Feeling guilty, she decides to teach him about sex out of maternal instincts. Initially, she just intends to educate him. However, after years of being neglected by her husband, her body inexplicably responds to her son's erection, leading her to invite him to their bedroom where they both lose control and indulge in passionate sexual intercourse...

ある日、母は息子のオナニーを目撃してしまう。見兼ねた母は溢れ出る母性本能で欲求不満の息子に性教育を施す。息子のための性教育…。初めはそのつもりしかなかった。しかし長年夫に放っておかれた肉体は、こともあろうか息子の肉棒に発情。母は息子を寝室に誘い、我を忘れ性行為に没頭してしまう…。