Unfortunately for Sierra, Doctor Bridgewater has a “let the punishment fit the crime” policy. A large dildo is mounted on top of the punishment table. Since Sierra was caught masturbating in the student dorm she must mount and ride the dildo while having one of her hands handcuffed above her (the other is left free so she can balance herself and play with her clit) whenever the doctor is unhappy with her performance he swats her bare ass with the paddle. Sierra's humiliation is complete when she is made to ride the dildo to orgasm, she learns a lesson in pain and pleasure.