Lindsay Lohan's Playboy issue is set to sell out.

The 'Mean Girls' actress posed in a raunchy shoot for the men's magazine and despite critics claiming the pictures were "boring" and unimaginative", it has proved popular with readers.

The issue has been selling out across many parts of the US with cities like New York and Los Angeles ordering additional copies due to the increased demand.

Playboy founder Hugh Hefner wrote on twitter: "The Lindsay Lohan January-February Double Issue is breaking sales records.

"The Lindsay Lohan Double Issue also includes 2 Centerfolds, the Year In Sex & the Playmate Review. Over 200 pages of entertainment. (sic)"

In the Marilyn Monroe-inspired shoot, Lindsay poses completely naked and was paid a reported $1 million.

Although the issue is proving very popular, Hugh previously admitted he had "mixed emotions" about featuring Lindsay in the pages of his legendary magazine.

Hugh said: "It really came as a surprise to me. I kind of had mixed emotions about it initially, and then it turned into something bigger than life.

"I wasn't quite sure where she was at in her life, obviously. It depends on whether it's Tuesday or Thursday."

Hugh also revealed how Lindsay, 25, and her family were initially reluctant for her to appear in the spread totally nude and he had to assure them the pictures would be shot in a tasteful way.

The 85-year-old said: "I think it was essentially mama and the folks around her that kept pushing for less nudity. And I said, 'We're doing a nude pictorial here. We're going to do it in a very classy way and we're going to do it in a way in which it will not be forgotten.'

"I think it was accomplished beyond anything I could have possibly imagined. People will not forget this pictorial."