To Rumi, her son Tatsuya had always remained a child in her eyes, even as his body matured. So much so that she would casually enter the bathroom while he was bathing, unbothered by exposing her body to him. However, one day, seeing Tatsuya's cock instantly grow hard as he stared at her ass, Rumi realized her son had truly become a man. A son drawn to his mother's body, and a mother captivated by her son's desire. Their forbidden passion ignites in the bathroom, erupting into an uncontrollable lust. Big ass, creampie, married woman, milf, incest.