Attracted by his stepmother Maiko Kashiwagi's kind personality and her voluptuous body, the son has obscene fantasies of her giving him a titjob and ball-licking blowjob to satisfy his sexual needs, and he begins to watch his stepmother... He peeks at her anal licking, playing with toys, and masturbating while having sex with his father, swaying her breasts in cowgirl position, and then... Maiko, who notices him peeking, invites him, saying, "Your father isn't here, so I'll take Ke'ai care of you," and licks his asshole, moaning and ravishing in incestuous sex!!