Getting your ball sack pinched while a doctor performs a physical on a male, from here sexual relations occur.
Friend 1: Dude, I just got back from the doctor, and I just totally got the Botkin.
Friend 2: Fucking sweet, how'd it go down?
Friend 1: Well I walked in for my physical and then the sexy doctor started to feel my balls for cancer. Afterwards, she pinches my ball sack.
Friend 2: No fucking way...
Friend 1: Yea, it happened. I then pull her head in and she starts to give me a blow job. Fucking EPIC!