I think the problem is that is some strange way a woman can show really revealing clothing on the beach or pool and not be ashamed of it since its socially conditioned for us to want it to be seen as sexual and okay at those places, yet now in these times for a man to flaunt his penis or butt in tight fitting speedos or square cut speedos is considered obscene even if the dude wearing them has got a nice piece or a hot body because, quite frankly, guys are made to feel ashamed of their penis and testicles when in these settings now.