Sayaka Hoshino has been enjoying wild sex in a room visible through the facing window. One day she catches the observer's eye and beckons him over, then eagerly initiates sex when he arrives. Fondling her sensitive breasts makes her tremble with pleasure; after blowjobs and cunnilingus heighten the mood, she begs him to penetrate her bare. They enjoy wide-legged cowgirl and face-to-face seated positions before he finishes in missionary with a creampie.