One day, Sachiko catches her daughter having sex with her boyfriend, and something inside her begins to stir. When the boyfriend comes by to pick up a forgotten item while her daughter is away, they meet again. He confesses, "I want to be alone with you, Mom," awakening her long-dormant desires. Her voluptuous J-cup breasts sway heavily as he thrusts into her tempting, big-titted body. Though she whispers, "I absolutely won't cum," she's repeatedly brought to climax shamefully by his skilled hands. Betraying her daughter, she ends up having creampie after creampie with him.