[NSFW] Why do all the male porn actors seem to need a hand?

Sure, it’s impressive that male porn stars can pound away for an hour or more without cuming. They certainly seem free of problems with premature ejaculation. Quite the opposite, they seem to be plagued with post-mature ejaculation. If fact, no matter how stunning, hot, and ready-to-trot the babe/s they boink may be, they seem incapable of getting off with them. Instead, they have to pull out of whatever orifice they have been banging and finish themselves off by hand. One might think this is all about showing that they really are cuming, but I don’t believe it is. Even when they are sliding their cocks between some big boobs where their member is always in plain sight, they still have to stroke their own meat to climax. What’s with that?