Mistress is using balls destruction as a way to stop that man from jerking off: spread-eagle bondage, balls beating and trampling are doing the job fine
Dude is having a fight with the bikini girl: loses the battle and she is about to bite off his balls with her teeth
Dominatrix is wearing rubber gloves and dealing with slave's ball sack by using a set of medical clamps
Naked sub is on top of the table and having sexy dominatrix sitting on his face and whipping his sensual balls
Girl is into pain and electricity: finding out how many volts male slave can handle in his wired penis without passing out