Robert Pattinson: Taylor Lautner Makes Me Insecure About My Body

 Jeff Kravitz/FilmMagic

Even Robert Pattinson gets insecure about his body — and it's all Taylor Lautner's fault.

The 25 year-old Twilight star confessed his costar's famous muscles gave him the blues about his own self-image. 19 year-old Lautner, who reportedly works out for two-and-a-half hours every day inspired Pattinson to tighten up. The British heartthrob told Mexican magazine 15a20 (via The New York Post) he trained for six months to bulk up his body for his Breaking Dawn: Part 1 sex scene with his on screen and real life girlfriend Kristen Stewart.

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"You also have to worry about how you're going to look," Pattinson told 15a20. "I had never been so worried about that before, but after seeing how much Taylor works out for the movies, I thought, 'Well, everybody is really going to judge me now.' I always tried to think about positions where I could tense the muscles, and suck in my belly."

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Pattinson continued his exercise regime for Breaking Dawn: Part 2. "The body of the characters seem to be a big deal," he reasoned. " So in this movie, I thought, 'OK, it's the last one, I'm getting a six pack,' and I tried, but it's very hard. I worked out so hard for six months, so after filming the sex scene, the first thing I thought was, 'Time to eat!'"

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