When the star taped the chatshow earlier this year reports claimed she’d admitted to Oprah that her and her Twilight co-star are an item.

But now the Eclipse star has rebutted those rumours. Kristen told Entertainment Weekly:

“She (Winfrey) glided over to me - and she was strong, by the way, really firm hands - and she said, 'How are you?' I said, 'Good.' She said, 'Good. Are you nervous?' I said, 'Yeah, I am, but I think I'm OK'.

“She said, 'Good. We'll have fun.' And then she just walked away. And that was the most I talked to her backstage.”

Last night Stewart was among cast members who attended the world premiere of Eclipse in LA. R Pattz, Taylor Lautner and the rest of the vampire gang were all in LA as the film debuted.