Hugh Hefner is Open-Minded

So we all know that Hugh Hufner is sexually experimental.  But it turns out he is even more fucking crazy than you woulda guessed.

In his biography Mr. Playboy: Hugh Hefner and the American Dream - which will hits stores in October - the 82-year-old STD farm bachelor admits that he had an incestual foursome with his brother and sex with a dude.

BuddyTV reports:

• Hugh Hefner, who maintains that Watts' book "is all essentially true," said “he was propositioned [by a man] and, thought, 'What the hell...'" He found it “an interesting experience," though one, presumably, he didn't choose to repeat.
• 
  
• On top of that, the book also details many more of Hugh Hefner's sexual exploits, including a foursome involving his brother and sister-in-law and a porn film starring Hefner himself.
• 
  
• “A foursome did happen with his brother, Keith, and his wife, Rae, one evening.  But while Millie, Hugh's first wife, ultimately backed out of having sex with Keith, Hugh slept with his sister-in-law,” Watts wrote in the book.'

On the less-glamorous side of things, Hugh's sexual endeavors almost killed him when he choked on a sex toy while going down on playmate Sondra Theodore in the 70's. 

'Hef was about to pass out. Sondra quickly started pumping his chest until the toy was dislodged,' an insider tells The National Enquirer.

These days though, Hugh has tamed things down to a humble polygamous lifestyle.  Like last night, when he took his three whores girlfriends and his brunette flavor of the week out to dinner at STK Steakhouse. 

Pictures of Holly Madison, Kendra Wilkinson, Bridget Marquardt and the quartet's dessert below...