Kristen Stewart turned 19 yesterday and got a chance to let loose and celebrate with some of her New Moon castmates at Chill Winston in Vancouver last night. As usual, all eyes were on sexy Pattinson, who tried to stay under his hoodie but still stopped to sign some autographs for fans and gave a thumbs up from inside his taxi. Another Twilight man, Jackson Rathbone, was also snapped on his way in with the birthday girl. With such a hot young cast, there are constant rumors of romance on set, though they've been quick to deny the latest that Rob is hooking up with Nikki Reed. It's hard to imagine there aren't at least some raging hormones, but at this point any Rob-costar love is restricted to the big screen.
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