Tsumugi happens to be nearby when her adult son’s friend Kosuke, an amateur photographer, needs a model. Noticing his eyes fixed on her cleavage, she playfully teases him by showing even more. When his crotch bulges, she approaches him without taking the situation seriously—but no matter how many times they fuck, his momentum never slows, and he keeps taking her again and again. After being pounded nearly every day, Tsumugi’s body and mind become unbearably sensitive until her overwhelmed body finally cries out...