A son was aware of his stepmother Aya, who exudes sex appeal, as a woman. When Aya comes to him in his fantasies, he is teased by her and gets a devilish blowjob! However, in reality, he just looks at his father and Aya's creampie sex with a resentful look on his face... When his father is away on a business trip and he peeks at Aya masturbating, she notices him and asks, "Are you really that interested in me?" with the same devilish smile as in his fantasy. She teases his nipples while kissing him, gives him an obscene blowjob, and gives him a titjob with her big tits. He moans in pleasure as his son loses his senses and engages in a rough incestuous sex!