Is "Twilight" vamp Robert Pattinson sinking his teeth into "Gossip Girl" Leighton Meester? Now that's some hot gossip!
RPatzz was spotted entering Meester's New York apartment, only to leave the next morning, a source tells InTouch. "He ducked out of the building and hopped into a waiting car. He apparently spent the night with Leighton, and didn't want anyone to know!"