Remember, a few years ago Hefner admitted that he watches gay pornography movies with his “girlfriends.”
He once wrote a story called "The Crooked Man" which portrayed a society where gay men were the "norm" and persecuted heterosexual men.
He wrote it as a defense of gay rights, of which he's always been a supporter.
http://www.buddytv.com/articles/the-girls-next-door/the-girls-next-door-star-revea-20798.aspx
And there was always the rumour he let Sammy Davis Jr. blow him?
A freak