The son uses an incest ray gun to brainwash and control his grandmother, mother, and sister! In the strict Nishino household, where sex was taboo, he forces them to perform fellatio, titfuck, and unprotected sex! Any erotic command is met with obedience! The more they are hit by the beam, the more they crave incest! Grandmother, mother, and sister fight over his dick! They reach maximum brainwashing level and climax in ecstasy! He fucks three generations of pussy in this incestuous harem!