A modesty pouch is a cock sock. It’s just a little nylon sack that you put over your, well, sack. And also your shaft. It is useful if an actor has a scene where he wants the audience to see his butt but doesn’t want the crew to see his junk. It is less useful if an actor is on all fours on an exam table with his cheeks spread and his hole blinking at the camera lens like it’s I Dream of Jeannie granting a wish.
