Robert Pattinson insists he's not scared by his legions of obsessed fans – he just doesn't understand what they see in his Twilight character Edward Cullen.

The British star puts the allure down to women being unable to resist a bad boy.

“It’s weird, but girls always seem like that,” he says. “Being a guy, you always just look at girls and think, ‘why are you with that guy?’

“With virtually anyone the nice guys always seem to come last. You always get weirdos like Edward who seem to attract women for some reason.

“If Edward wasn’t a fictional character and you met him in reality he is like one of those guys who would probably be an axe murderer or something.”

Despite recent close encounters with some tactile devotees, the heartthrob says he finds the attention “amazing.”

“I had no idea people could get so obsessed," he continues to Britain's OK! magazine.

"But it’s not scary - it’s amazing. People just project their idea of my character on to me and they just seem to assume that I’m the same, when in reality I’m not.”

Rob and the New Moon gang at Comic Con