REALITY TV star Kelly Os bourne’s dream of posing for Playboy has come to an abrupt end.

Hugh Hefner is saying he doesn’t think it’s a good idea.

Kelly, 22, said earlier this week that, despite her full figure, she wants to give it a try.

“I’d go fully nude,” she said. “But I’d have to have some airbrushing.”

“We don’t airbrush to that extent,” Hefner, now 80, says.