Kristen Stewart was in her round sunglasses this morning when she touched down at Heathrow airport. She's in boyfriend Robert Pattinson's hometown of London for a few days, following a couple low-key weeks of rest after wrapping up work on Breaking Dawn. The end of shooting the Twilight series didn't offer much rest for Robert, who was then busy promoting Water For Elephants with costar Reese Witherspoon. Kristen was there to support him at various stops on the press tour and with kisses at the big NYC premiere. She stuck around the Big Apple afterward to hit up this year's Met Ball in a black and red Proenza Schouler number, and was later seen leaving the Bowery Hotel with her and Robert's rescue dog, Bear.