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
Woman spread-eagled nude male on top of the bed and tormenting his body and cock with the small spike-wheel
Dude is having a fight with the bikini girl: loses the battle and she is about to bite off his balls with her teeth
Male sub is about to scream when mistress is going to rip clothespins from his belly with one sudden move