Hugh Hefner 'had foursome with brother'

Warning: This article contains language and/or sexual references that younger readers are advised to avoid.

Hugh Hefner once had a foursome with his wife, brother and sister-in-law, a new book will reveal.

Author Steven Watts chronicles the Playboy founder's sexual exploits in Mr. Playboy: Hugh Hefner And The American Dream.

He wrote: "[A foursome] did happen with his brother, Keith, and his wife, Rae, one evening. [But] while Millie ultimately backed out of having sex with Keith, Hugh slept with his sister-in-law."

Watts continued: "Hefner's thirst for sexual experience became so strong that he even had a one-time homosexual experience.

"One evening in downtown Chicago he was propositioned and... he thought 'What the hell...' As far as I know, the guy just gave him [oral sex].'"

The book, which is scheduled for release in October, also reveals that the 82-year-old shot and starred in his own porn movie.

Hefner had reportedly given his approval to the biography, with the New York Post quoting him as saying: "This is the most authoritative book ever written about me... It's all essentially true."

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