Kristen Stewart has lashed out on a paparazzo amid questioning about ex-boyfriend Robert Pattinson. Stewart was taking a lunch break from filming her new movie Camp X-Ray when she got pretty fed up with the photographer.

In a video posted by x17online, Stewart is heard telling the paparazzo “you’re a piece of sh-t,” and calling him a “f—k face.”

When he asked if why she’s so mad, she replied "Because you're a piece of s**t. You don't deserve to breathe the same air I do."

Entertainmentwise notes the paparazzo persists, asking her if she’s “back together” with Pattinson or if she’s dating anyone else.

There were rumors Pattinson was dating Katy Perry after they were seen together a few times, but in Elle UK, Perry said they were just friends.

"I sent her a text message saying: 'I know you've seen all this stuff but you know I would never disrespect you. I'm not that person.' she said of Stewart. 'I'm just trying to be a friend to him but it is unfortunate that I do have a set of t*ts."

image: INF Daily