Marilyn Monroe's dirty tape

Long before Paris Hilton went all naughty night vision; prior to Kim Kardashian getting Ray J’d for all to see; and decades preceding Dustin Diamond’s dirty (sanchez) deeds, there was Marilyn Monroe.

As the original sex kitten, this actress was married to Joe DiMaggio and is remembered for a fling with JFK. Now, the New York Post reports that Monroe was also the first celebrity to make a sex tape. The newspaper says a copy still-FBI-classified reel - 15 minutes of 16mm film footage in which the blond bombshell goes all Antonella Barba on an unidentified man - was recently sold to a New York businessman for $1.5 million.

Keya Morgan - the well-known memorabilia collector who discovered the film and brokered its purchase - claims it came to light in the mid-’60s. At that time, FBI Director J. Edgar Hoover had his agents spend two weeks futilely trying to prove that Monroe’s sex partner was either John F. Kennedy or Robert F. Kennedy.

The silent black-and-white flick shows Monroe on her knees in front of a man whose face is just out of the shot.

Last month, Morgan brokered its sale to a wealthy New York businessman who wants to keep this unseemly part of Monroe’s past buried.

“He said he’s just going to lock it up,” Morgan said. “He said, ‘I’m not going to make a Paris Hilton out of her. I’m not going to sell it, out of respect.’ “