Girl is into pain and electricity: finding out how many volts male slave can handle in his wired penis without passing out
Two MILF dommes on one man: the first lady is whipping his balls while another is hitting penis with high voltage sparks
Male is handcuffed and having a weight attached to his balls: whipped by girl in the sound-proof chamber
Girl is performing inhuman BDSM tests to find out how tight balls bondage should be for man to start crying