Last year, IFC.com and Nerve.com teamed up to compile "The 50 Greatest Sex Scenes in Cinema" history. Great fun (despite the horrible navigation that makes you almost just want to rent each video and fast-forward to the sex scenes yourself). But you know what's even better than the best scenes? "The 50 Worst Sex Scenes in Cinema," of course. Well, they've done the dirty work again and come up with a doozy of a list. We'd say they're almost all spot on, from Showgirls to Eyes Wide Shut to Wild Things, and they especially nailed it with their choice for #1 worst sex scene of all time. (Can you guess? Here's a hint: it ain't vegan.) The only one we really take exception with is the Model T sex scene from Titanic (rated #48). Okay, it's not great (that hand slap against the glass is way too staged), but one of the worst? Come on, have they no sense of romance? Plus, it was one of the last times Leonardo diCaprio was pretty-boy hot. That's gotta count for something.