How Did Taylor Lautner Get That MTV Movie Awards Beer Belly?

'The drinking just ... it was overboard,' Best Shirtless Performance winner and 'Twilight' star jokes backstage of his fake flab.

The inaugural presentation of Best Shirtless Performance at the 2013 MTV Movie Awards was a tad bittersweet, as it was the last time the “Twilight Saga” would be honored at the show.

Taylor Lautner was the lone wolf, taking home final honors for the franchise for his role in “The Twilight Saga: Breaking Dawn – Part 2.” Since making its debut at the Movie Awards in 2009, “Twilight” and its stars have dominated, taking home 18 buckets of Golden Popcorn.

“It’s exciting to represent it one last time, but it’s really exciting to be here at the transition stage, thinking about the future,” Lautner told MTV News backstage. “I mean, ‘Twilight’ was amazing. It’s really cool.”

Appearing onstage with a fake beer belly , he called the award the “Oscar” for the shirtless actors out there, but he looked quite different from his washboard-abs-baring character Jacob Black.

“I put on a little weight,” he joked to MTV News after the show. “I turned 21, recently, a couple months ago. The drinking just … it was overboard. Metabolism stopped. It just went straight to the abdomen.”

But Taylor planned the stunt because, you know, it’s so hard to say goodbye to yesterday, and he just didn’t want to take the award too seriously. “One, I was so shocked to find out that the award was being televised. I was like, ‘Wait, Best Shirtless Performance is gonna be on TV?’ So I was like, I had to do something funny,” he said.

Lautner beat out Channing Tatum (“Magic Mike”), Christian Bale (“The Dark Knight Rises”), Daniel Craig (“Skyfall”) and Seth MacFarlane (“Ted”) for the Best Shirtless Performance award.