Jessica Biel may have finally gotten ladies man Justin Timberlake to commit, but she's no dummy -- along with the rock on her finger, Jessica is apparently locking Justin into a prenup that he'd be stupid to break. According to Radar, Jessica will get at least $500K if Justin ever cheats on her -- an insurance policy that is no doubt related to rumors that he's strayed a few times throughout their relationship. Apparently, Jessica isn't 100 percent trusting of J.Tim just yet, so she wants a few cheat-free years of wedded bliss before she'll pop out any babies -- especially since "Jessica figures if she gets fat during pregnancy, he'll cheat again." How ... romantic. Call me crazy, but $500K seems a little low, no? I mean, Justin is a huge star with a LOT of money in the bank. I would have gone for $1 million per! [Radar]

In the grand scheme of celeb prenups, Jessica's cheating clause is pretty tame. Celebrities are masters of manipulating prenuptial agreements to cater to their lifestyles. Here are a few of the weirdest stipulations.