Kaori is a single mother. She is busy with work and worried about her shy son. One day, her son brings his friend over to the house, but it turns out to be a horrible trap, and she ends up being used as a sex toy by the horny brats. She is threatened and forced to masturbate, give a blowjob, and even have sex with her son! She is transformed into a slutty, filthy mom covered in semen after the brat's continuous cum shots.