Kelly Osbourne has vowed never to pose completely nude for a magazine - because she's terrified her dad Ozzy would see the snaps.

The star, who is currently competing in U.S. TV talent show Dancing With The Stars, recently declined an offer to strip off for Hugh Hefner's Playboy magazine.

She insists she was flattered but she's ruled out ever baring all for the men's mag - in case the Black Sabbath star flips through the pages.

She explains, "It was the second time they have asked and respectfully I declined, as I don't feel it's the right thing for me.

"I know if I ever decided to do something like that I'd want it to be tasteful and done very beautifully. But still I turned it down - I wouldn't want my father or (my) brother Jack to open up a magazine and see me naked!"