Her son, starved of love and desire, erupts with uncontrollable emotion while being held by his mother, Reiko. In response to her son's needs, Reiko pours her affection using her own body. She reveals her glamorous figure and carefully explains the mechanics of her pussy with a wide M-shaped leg spread. Yet, when touched, she becomes highly sensitive, dripping mother's juice from her slit. Before long, Reiko finds herself vigorously riding her son's cock, lost in pleasure. Receiving a generous creampie from her son, Reiko's real sex education comes to its final climax.