Their chemistry is so palpable, they have to constantly ward off rumors that they're more than just friends. From Sandra Bullock and George Clooney to Zooey Deschanel and Joseph Gordon-Levitt, meet Hollywood's famous platonic pairs
Robert Pattinson and Katy Perry
TMI! To prove she and the Twilight megastar are just buddies and nothing more, Perry told Elle in its September 2013 issue, "I fart in front of him. Properly fart. And I never, ever fart in front of a man I'm dating. That's a rule."