'Twilight' superstar Robert Pattinson has no intention of doing a shirtless scene in a movie because he would have to make a lifestyle change. The 25-year-old said he is often asked to strip on-screen but he turns it down as he thinks he doesn't have the body to flaunt on-screen,reported Showbizspy. "I'd have to make a lifestyle change if I wanted to do shirtless acting. But it seems like every single actor in the world is going a 'Taylor Lautner' scene - - it's crazy. They have a scene where they walk out with like a 12-pack. It's like,'Really? You're playing a normal guy! That doesn't make any sense. But that's a prerequisite of being an actor. Or you can get fat!," Pattinson said.