Smile-san, a housewife living in Tokyo, has been married for six years and her husband works long hours, leaving them both sexually frustrated. To cope with her unfulfilled desires, she masturbates daily. She recently started an affair with a man she met through an app, indulging in passionate kisses that leave her breathless. Her sensitive body reacts strongly to his touch, becoming wet at the mere scent of his armpit sweat. When he shows her his dirty penis, she eagerly takes it into her mouth, servicing him with a submissive blowjob. As he cums, she watches in excitement as he releases a massive load all over herself, revealing just how turned on she really is. Finally, he enters her tight pussy, filling her up with his thick, smelly cum, leaving her satisfied yet wanting more.