Robert Pattinson - Lutz: 'Pattinson's Muscles Are Real'

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."