A sixtieth birthday mother, who lives a mediocre life, witnesses her son indulging in masturbation using an onahoru. A mother who is curious about sex toys that she sees for the first time is also strongly attracted to her son's grown-up penis and invites her to ejaculate. The sexual desire of the sixty who does not know the decline. The son also lusts from the distorted affection to the appearance of the mother who violently gropes the ripe genitals and goes crazy for pleasure and inserts a meat stick. My son moistened his 60th birthday mother's ripe omako with cloudy juice.