Tsk Tsk! Twilight Saga star, Robert Pattinson really does have a potty mouth on him and he's proved it again by swearing on live TV!
Rob's not known for giving good awards show speeches. The pressure gets to him the poor little lamb so we weren’t expecting great things as he took to the stage to present his Water for Elephants co-star, Reese Witherspoon with her Generation Award.
Attempting to make a joke about being cut out of the scenes he and Reese shared in Vanity Fair, Rob dropped the f-bomb which the technical bods failed to bleep out!
He said: “I didn’t cut you out, but I did f*** you.”
The joke didn't quite work so Reese corrected her co-star and on screen lover during her acceptance speech, saying: “By the way, Rob, the punch line to your joke was, I played your mother, then we had a sex scene, so really you’re the best mother f*cker in Hollywood.”
Of the swearing, MTV reps told Movieline: “It was unexpected, and was a technical glitch in not catching it. It won’t be in West Coast feed or any repeats.”
In case you still want to see Rob's mistake, check it out here...

























