While relationship rumors go back and forth from together to broken up to never dating, Kristen Stewart and Robert Pattinson certainly share a special bond.

Joking about her co-stars lack of athletic prowess, Miss Stewart told Harper's Bazaar, "Rob can barely jump rope. I call him Flippy because when he does his stunt rehearsals, he flips around. And God, when he tries to run..."

Meanwhile, Rob has his own thoughts about Kristen, saying, "She just looks at herself. I look up my competition more than she does. I'm incredibly shallow."

As for romantic personalities, Miss Stewart tells, "I'd have to say Rob is [more romantic]. I think romance is anything honest. As long as it's honest, it's so disarming."

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Enjoy the pictures of Kristen Stewart with fellow "New Moon" co-star Taylor Lautner in Mexico City (November 3).