JFK, RFK and Teddy all had sex with Marilyn Monroe, Frank Sinatra, and Sammy Davis, Jr.
Amongst the many goodies discovered within Ted Kennedy's FBI file is a 1965 memo about a rich New York City divorcée who had "considerable information about sex parties" involving the Kennedy brothers, Frank Sinatra, Marilyn Monroe, and Sammy Davis Jr. Ted Kennedy's Romantic History
In the document, it is reported that this ex-wife of a former U.S. ambassador to Spain had detailed knowledge about some rather high-profile sex parties that occured at the posh Carlyle hotel, where she had a room. Secret Love Lives of US Presidents
You can read an excerpt here, but go to The Smoking Gun get a good look at the primary document. Other fun facts found on file detail a bizarre extortion plot involving obscene Polaroids; a "discreet" request from the Nixon White House for information about Mary Jo Kopechne's international travels; a possible cross-bow assassination; and a purported 1980 murder plot uncovered by a Arizona man with "psychic powers."
It was reported that Mrs. Jacqueline Hammond, age 40, has considerable information concerning sex parties which took place at the Hotel Carlyle in NYC, and in which a number of persons participated at different times. Among those mentioned were the following individuals:
Robert F. Kennedy
John F. Kennedy
Sammy Davis, Jr.
Mr. And Mrs. Peter Lawford
Mrs. Hammond, the former Jacqueline Livingston, is reportedly very wealthy to the extent of several million dollars. She maintains a room at the Hotel Carlyle, an apartment at the Stanhope Hotel, on 5th Avenue, and another large apartment in the Yorkville section, all NYC. She is divorced from her husband, Ogden Hammond, who resides at Fort Lauderdale, Fla. [Source: The Smoking Gun]