A steel clamp, attached on one side to the neck of the slave and on the other side clamped to the nipples of a blindfolded slavegirl. When the slave stpes backward, he automatically pulls the nipples of the slavegirl. Hard! The Master sticks a needle in the slave's chest. He does a step backward. And hears the slavegirl yell. Ouch! Such and more inventive fetishes and slave/slavegirl training!! MP4 movie!!! 76 minutes