Actor Robert Pattinson did occasionally sound like someone under the influence as he exuberantly dropped a speech, which included an F-bomb, while presenting the Generation Award to his “Water For Elephants” co-star, Reese Witherspoon, at the 2011 MTV Movie Awards on Sunday (June 5)- watch video below.

2011 MTV Movie Awards Winners (FULL List)

The 25 year-old Twilight heartthrob attempted to make an elaborate joke when the F-bomb just slipped before MTV censors could block it. Robert explained he had played Reese’s child in a movie seven years ago, and now had the opportunity to be her lover in “Water For Elephants”. “I did f*** you,” he said.

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Reese, who slammed Kim Kardashian and Blake Lively (watch video here), laughed, but she had to explain Robert’s joke. “The punchline to your joke is that I played your mother and then we had a sex scene, so really you’re the best motherf***** in Hollywood. Okay?” she quipped. BURN. That was hilarious!

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Now, seriously? Was RPattz drunk, high and totally wasted or what? He was definitely having a whole lot of fun throughout the awards ceremony. Rob received awards, kissed Taylor Lautner, expressed his desire to make out with Kristen Stewart backstage (video here) and dropped the F-bomb. This is not normal behavior, is it?

Robert Pattinson F-Bomb At MTV Movie Awards Video