Couple is visiting doctor: both are undressed, put on all fours and having their asses probed
Elegant lady-doctor is checking up if the test subject still can have his penis hard enough to fuck a woman
Getting cum samples is not easy: bitches are using trampling, strap-on and cock teasing to make test subject ejaculate
Footjob teasing and facesitting are sometimes become an important parts of medical tests
Mad scientists ate checking out if cum can be pumped out of the balls with electric shocking device
