Since childhood, the son had always been close to his mother, fostering an intense desire for a sexual relationship with her. To fulfill this desire, Takenoki Takefumi devises a plan. The college-aged son gets into trouble at his part-time job, prompting an angry call from his father—played by a crew member in disguise. The mother, determined to sacrifice herself for her son, accepts the man's penis with her nearly hairless, soaked vulva. Despite copious arousal, she permits a second man, writhing in ecstasy while blindfolded, moaning "I love sex, I love cock!" The son discovers the truth and hesitates, but gives in, crying out, "I'm going to come with my son's cock!" as they deepen their forbidden bond.