One day, when Haruna was cleaning her son Taichi's room, she noticed an erotic book on her bed and ended up reading it. Originally lascivious Haruna has recently been frustrated and excited and starts masturbating on the spot. Taichi, who had just returned from outside, entered the room and was seen in a disordered state. Haruna is questioned and defiantly sucks on Taichi's cock, but this time her brother Makoto sees the scene. [*Bonus videos and bonus images are not included]