A young man hired to do electrical work suddenly masturbates in front of Natsuko. Shocked, Natsuko forgets to refuse. The more she thinks she shouldn't look, the more she can't help but be intrigued by the young man's firm cock. The young man's actions escalate. "Like me, an old woman... you're getting me excited... what are you going to do about it..." When she says this, Natsuko ends up grabbing the young man's heated cock. At the moment her mind is filled with the young man's cock, her daughter tells her she's going to introduce her boyfriend. An unexpected reunion with the young man... and then jealousy... What actions does Natsuko take, driven mad by lust and jealousy!?