I guess this shows how little experience I have... but "they" can really hang that low?!?! Wow. No wonder you guys "man spread" when sitting down. lol.
Yeah they do for people with big balls. You don't see it in porn typically because when a guy gets hard, the sack shrinks to protect the balls. Or the guy was on roids long enough to have strunken the balls so much that they don't drop down anymore.