Sharp spike-wheel is making a perfect torture combination with the tight steel cuff slave's balls are already locked into
Goddess comes to the stables where ponyboy is kept: his balls to be tormented with rope bondage and then locked into chastity cage
The worst femdom tortures you can imagine: hitting weak penis with mouse trap and then cutting off balls with castrating device
Slim dominatrix is playing with slave's balls: putting them in extreme rope bondage and attaching massive weights