I vote taint and cock root, that part of the corpus cavernosum* which will be stiff and squeezable behind the balls if he’s hard. You can get a good grip on it if when he’s on his hands and knees and the scrotum naturally falls forward a bit on his shaft.

(*I always forget the proper name and think of that part as the corpus callosum. Would love to get this mixed up publicly sometime, like maybe on Jeopardy!)

textsfromlastnight:

(775): Just asked what her favorite part of a guys body is. She said ballsack. I’m in love.