A mother in her fifties, whose relationship with her husband has completely cooled and whose ripe, lewd body is throbbing with agony, masturbates as a daily routine. One day, she accidentally bumps into her son in the dressing room while half-naked. While her son is agitated by her mother's naked body, the mother feels lustful excitement and forbidden desire for her son's strong, grown-up cock. The mother, unable to control her carnal desire, plays with her son's cock and gives him a blowjob, trembling with forbidden pleasure and inviting him into her ripe pussy.