Credit: Michael Rozman/Warner Bros.

There are crazy fan encounters, and then there are crazy Robert Pattinson fan encounters.

On Friday's Ellen, Pattinson, 23, tells Ellen DeGeneres about the woman who recently undressed for him in public during a marathon autograph-signing session.

The New Moon star was burnt out after signing 500 signatures. "You kind of get ten seconds with each person and you never really say anything . . . I kind of got bored," he explains. When one female fan asked Pattinson "how can I get your attention?" Pattinson had a novel suggestion. "I was like, um, just take your clothes off."

The fan obliged. "She stood there and frantically started taking her clothes off and got dragged out of the room by security," Pattinson says. "I never felt more terrible . . . I sound like I'm actually just abusing my position."

As for his own nudity, Pattinson hedges to DeGeneres whether he'd ever go the full monty. "Ah...maybe, I don't know," he says as the audience screams. "It's definitely a risk."

The actor gets halfway there in New Moon, doffing his top in a pivotal scene. "I actually saw the film yesterday," he admits, "This is the first time I've ever been proud of my physical appearance in my entire life."

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