(nowmagazine.co.uk) - George Clooney has revealed that he'd pose in his underwear if he looked like Brad Pitt .The actor, 47, reckons he doesn't have a good enough body to strip for the cameras.'It wouldn't look good for me, particularly in my boxers,' he says.'If I was built like Brad Pitt I'd do it all the time. Wouldn't you?'George says he admires what his Ocean's 13 co-star does to help others, particularly the relief work the 44-year-old and partner Angelina Jolie , 33, are doing for the victims of Hurricane Katrina in New Orleans.'Brad went there, builds houses, he can do a lot of other things with his time,' George tells OK!'He and Angie really put their money where their mouth is. I'm always very impressed by them.'