Yumi has recently become addicted to BBQ. One day, when she is serving her son's friend Kosuke who came to play, he can't take his eyes off Yumi's voluptuous body... Yumi notices this and, Kokoro, invites him. However, Kosuke, who has an inexhaustible stamina, is not satisfied with just one shot, and continues to devour and violate her ripe body, ejaculating over and over again like a monkey. After a while, Yumi's body begins to scream as she continues to have endless sex with him, who has an inexhaustible stamina...