Just another night on the town for the Hilton girls. Nicky and Paris stumbled out of the Roosevelt last night clad in lots of black and white and patent leather. Of course, at least one sister has to be in Loubs at all times. After a wild weekend of 27th birthday parties in Vegas, it's clear that Paris isn't slowing down anytime soon. Never let it be said that Paris lets a little failure get her down — The Hottie and the Nottie. Hey, there's always the DVD sales, right?