Twilight star Taylor Lautner rubs his fitness in the face of co-star Robert Pattinson by hardly ever wearing a shirt during filming, so it’s little wonder that Robert Pattinson felt like he didn’t measure up next to Taylor during the filming for the Breaking Dawn movies. As a result, Robert decided that he needed to get a six-pack for the semi-naked sex scenes, which he stars in alongside Kristen Stewart.
“You have to worry about how you're going to look,” he told film magazine 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. The bodies of the characters seem to be a big deal, 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!'"