Kristen Stewart and Robert Pattinson at the UK premiere of 'Twilight'. London, England - 03.12.08

The pair was thrust into the limelight when they were cast as the stars of the vampire franchise.

Pattinson became a heartthrob overnight, and Stewart fears the wrath of fans jealous of their onscreen romance.

She tells USA Today, 'You show up at these places, and there's literally like a thousand girls and they're all screaming your name. Girls are scary. Large groups of girls scare the (crap) out of me.

"They covet him. I think half of them are so jealous that they hate me.'

Eighteen-year-old Stewart has learned some quick advice to avoid being mobbed: 'More than three girls of that certain age - run away.'

Kristen Stewart's older news:

* Stewart Researches Jett For Runaways Movie
* Stewart Up For Four Twilights
* Stewart Struggles To Cope With Newfound Name
* Twilight Sequel Plans Take Shape
* Twilight Takes Bite Out Of U.S. Box Office

Source: WENN