"I have been working out. I've been working out since the day we finished filming 'Twilight.' I just weighed myself today; I've put on 19 pounds," the noticeably larger Lautner told us, promising that he'll be big enough to fit Stephenie Meyer's physical description of Jacob Black in "New Moon" when cameras begin rolling in 12 weeks. "I'm guaranteeing Weitz 10 more [pounds] by filming. I get to meet Chris on Friday, in two days, so I'm excited. I'm going to have lunch with him."