Three women with extraordinarily huge breasts—a graduate student, a female spy, and an adult uniformed masochist role-play character—fall into a gang of sadists' cruel trap. The third installment subjects their massive tits to twenty clamps, then drives them into two-hole orgasms with a large vibrator and anal dildo. Nose hooks, hot wax, whipping, collars, forced anal sex, and the female spy's brutal torture complete this merciless bondage ordeal.