Yasuoka Tamaki's seductive charm ignites a burning desire in her son, who gets the chance to go to the pool with his mother during summer break. From this day on, his heart is deeply shaken by her presence. Entranced by her figure, the hidden impulses deep within his chest become impossible to suppress. Her fully matured big ass sways with every step, and her glossy O-cup breasts captivate his gaze. Suddenly appearing in a public restroom, she stares at her son with predatory eyes. Their mother-son bond twists into something perverse as lust-filled episodes unfold. Overcoming the boundaries of their roles, they dive into the ultimate nipple fuck experience.