Bizarre medical probes where old guy has to lick young nurses while his balls are becoming examined
A couple of sluts are stripping down and using a great deal of pussy smotheirng to keep dude hard as long as possible
Big and strong stud turns out to be submissive: going on all fours so girls could do anal probing
Girls are testing male ability to get hard: all three are naked - test subject, the nurse and sexy doctor
Small cock is becoming examined by nurses: girls are using medical tools and gloves to hold the thing
Classy bitch is taking notes describing the process of attaching big weights to test subject's penis and balls
