Emma Watson has defended her former Harry Potter co-star Robert Pattinson's budding reputation as a Hollywood playboy, insisting the pair was only friends during filming.

Twilight hunk Pattinson's current onscreen love interest Kristen Stewart has also been fighting off rumors they became a couple after appearing onscreen together last year in the vampire love story.

However, Watson insists the 23-year-old British actor was a gentleman onset when they worked on Harry Potter and the Order of the Phoenix and Harry Potter and the Goblet of Fire.

She tells the New York Daily News, "He's just a good friend. He's a super-nice guy, and girls love him. We're just friends - but he sure was great to work with."

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(This news article provided by World Entertainment News Network)