Dude has his penis studied with medical tools and his ass examined with nurse-driven strapon
Mad scientists ate checking out if cum can be pumped out of the balls with electric shocking device
Doctors want male to go on all fours and take a strapon in his ass after his balls measured with special tool
Girls are testing male ability to get hard: all three are naked - test subject, the nurse and sexy doctor
Humiliated male slave is on all fours when slutty nurses are teasing his penis and probing ass in rubber gloves
Pussy-licker on all fours and cleaning the shaved cunt while nurse is examining his balls
Degrading cum-milking where naked male is put on all fours and pulled by his penis painfully
