The First Lady allegedly responded by saying, "That's Great." "You'll move into the White House and you'll assume the responsibilities of first lady, and I'll move out and you'll have all the problems."
"The claim that Marilyn Monroe actually called Jackie O at the White House does seem slightly farfetched but then again with Marilyn Monroe seemingly anything was possible." said Presidential Historian Nick Ragone.
The book also claims the breathy sex symbol confided her most intimate details of the alleged affair to a friend…convinced the President would leave Jackie for her, even fantasizing.
"The idea that President Kennedy would leave his beloved wife who the nation adored for an aging movie star was probably a fantasy in Marilyn Monroe's mind." said Nick Ragone.
The book also tells of Jackie reportedly telling her doctor that of all her husband's alleged affairs, the one with Marilyn was most troubling.
"Jackie Kennedy she was a smart political wife and she feared Marilyn Monroe not as somebody that would be emotionally intimate with President Kennedy but rather somebody who could take down the administration in scandal. She viewed her as a loose cannon and unpredictable." said Nick Ragone.
Historians say the idea that Marilyn could have gotten through the White House operator and spoken with Jackie and had a conversation may be hard to imagine but not totally implausible.
By: Zoraida Sambolin - CNN