Robert Pattinson Lacks Physical Skill, Says Kellan Lutz

Kellan Lutz says Robert Pattinson wants his "man boobs."

It sounds competitive, but it's all in good fun. Kellan Lutz is poking jokes at his pal Robert Pattinson's allegedly flabby body, saying Rob aspires to the beefiness and physical agility of Lutz. But man, confesses Lutz, Pattinson is "such a talented motherf---er."

Robert Pattinson and Kellan Lutz are reportedly great friends due to their massive amount of work together for Twilight. Kellan now reveals that he hugely admires Rob's work and saying, "I wonder how I can get what he has."

Apparently Robert Pattinson returns the envy, as he's said to be in awe of Kellan Lutz' body -- just ask Lutz. "He asks me what I do to work out because he wants man boobs like me," he says. "I just tell him I like doing pushups."

Robert Pattinson is clearly not into the physical challenge -- in fact, Lutz says, Rob's a mess when it comes to anything having to do with using his body. Kristen Stewart has even weighed in: "I call him Flippy because when he does his stunt rehearsals," Stewart says, "he flips around. And God, when he tries to run..."

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Kellan Lutz has tried to step in and feed Rob some of his protein shakes. However, Lutz says, Rob's not interested. "Rob was like, 'How do you drink this stuff?!"

Check out the shape of Robert Pattinson's body in these new photos from Monday's Remember Me premiere. We doubt you'll mind the missing ripples...he delicious.