Two years after marrying Takashi, Natsumi had been living a happy life, but recently her husband's work became increasingly demanding, leaving him away from home for long periods. Filled with loneliness, Natsumi found herself immersed in daily masturbation. Yet, unsatisfied with that alone, she began living pantyless around her stepson Akira. Thus began her new provocative behavior—teasing the virgin cock of her young stepson.