Gwyneth Sweats Her Boobs Off 5/16/2008 10:15 AM PT Working out at the same gym Madonna frequents, Gwyneth Paltrow glistened as she emerged from a workout in London yesterday. Is "slippery nipple" a drink or a workout regimen? See Also It's Hard Being MadonnaMadonna's Sweaty Hot Flash Share on Facebook Share on X Hot Bodies Paparazzi Photo