Like a French-farce version of Beach Blanket Bimbo, Lindsay Lohan and Paris Hilton turned up at Fourth of July parties in Malibu at beach houses right next to each other. Can you even imagine? The madness got even madder when Paris stopped in to the Lindsay party to, you know, make an appearance, and the ensuing slapstick to keep them from bumping into each other must have been priceless. Especially if there was only one bumproom. TMZ has video.