Robert Pattinson's New Moon co-star Kellan Lutz has denied the actor resorted to make-up tricks to gain a muscled torso for the Twilight sequel.
The British star's stomach has come under scrutiny from Internet gossips in recent weeks, with many speculating his muscled appearance is the result of clever shading by the film's make-up artists.
But Lutz, who will appear alongside Pattinson in the vampire movie, insists his pal's sexy body is down to months of hard work in the gym with co-star Taylor Lautner.
Lutz tells the New York Daily News, "Taylor been training Rob a lot, and that's why he's got such ripped abs. Rob's been working hard. He's trying to be the best he can be."
New Moon is one of the most anticipated movies of the summer and is the second book in Stephenie Meyer's Twilight saga to be adapted for the big screen.
Directed by Catherine Hardwicke Twilight grossed over $379 million at the global box office as well as making household names of it's young stars Robert Pattinson and Kristen Stewart.
New Moon follows Bella Swan (Stewart) who is devastated by the abrupt departure of her vampire love Edward (Pattinson) but her spirit is rekindled by her growing friendship with the irresistible Jacob Black (Taylor Lautner).
Suddenly she finds herself drawn into the world of the werewolves, ancestral enemies of the vampires, and she finds her loyalties tested.
However Hardwicke is not returning to the director's chair, replaced by The Golden Compass filmmaker Chris Weitz. New Moon will be released at the end of the year.
Tagged in Twilight Robert Pattinson