She will tie off one of your testicles and put it in the vice

Hey, Thanks for getting me a drink but I know you have been watching me. mistress has said the slaves are not allowed too stare at us. She said if we catch one of you then we must punish you severely.

So while you were getting me that drink I thought of a punishment that I think is fair. Once restrained I will tie off one of your testicles and put it in the vice there I will slowly apply and release pressure until it is purple and swollen.

Then I will introduce you to barbed needles as I slowly push one after another though the tortured testicle. Once I have filled the ball with needles I will just as slowly pull them back out with the barbs cutting all the way. Then once I am satisfied your testicle can take no more torture I will put it back in the vice and close it completely, what do you think?

I think that is a fair punishment, come on in get my drink and we'll go to the punishment room and make a start. As you have been so good to me you can select which testicle I punish.

She will slowly apply pressure until balls are purple and swollen