Those of you who don’t live in downtown New York may not be familiar with the new Calvin Klein Jeans billboard gracing a corner in Soho. Let me explain: the thing is enormous, taking up the entire side of a building, and its four scantily-clad participants look just about ready to have a tired, drunken threesome. (Well, three of them might, anyway. The fourth dude is just so over it and needs a nap on the ground.) In short, it is incredibly hot in a sweaty, semi-trashy way. And sometimes, that’s all you need.But certain local prudes and mommies are pissed about the billboard and its potentially corrupting content, no doubt concerned that their stroller-bound infants will drop trou upon seeing it and run off in search of an orgy. We understand that the ad isn’t exactly the most PC one around, but the request to take it down seems a bit over the top, doesn’t it? And why is anyone at all shocked that Calvin Klein — long time purveyor of risque ads — has got a little threesome action going on? This is, after all, the guy who brought us topless Kate Moss in her skivvies way back when she was, like, five. Get over it.