Girl is into pain and electricity: finding out how many volts male slave can handle in his wired penis without passing out
Male is handcuffed and having a weight attached to his balls: whipped by girl in the sound-proof chamber
Test subject is feeling pain when cruel brunette is sing steel tous and electricity on his exposed penis
Male sub is about to scream when mistress is going to rip clothespins from his belly with one sudden move
Nude man is handcuffed to the post and cannot protect himself when bitchy cougar is using riding crop to interrogate him