US first lady Michelle Obama.

Michelle Obama orders women close to her husband to be watched because she fears he will have affairs as President John F Kennedy did, a new book claims.

The First Lady is supposedly “unusually jealous” and turns up at the White House unannounced to check on President Barack Obama.

She also objected to her husband’s closeness to Oprah Winfrey, and shuns her because she “hates fat people”.

The claims could re-open questions about the Obamas’ 20-year marriage, which has reportedly been turbulent in the past.

In The Amateur, which looks at President Obama’s first term, US author Edward Klein claims that his wife’s “obsessive” behaviour is the talk of the White House.

He quotes a source close to Oprah, who said: “Michelle makes it clear to her inner circle ... that she wants women around Barack watched and wants info about who he has an eye for and gets touchy with. She knows, like everybody, about JFK’s shenanigans, and she thinks, hey, JFK was young and good looking like my guy.”

Klein claims that relations between Oprah and Mrs Obama disintegrated after the 2008 US election when President Obama gave the chatshow host’s advice “priority over Michelle’s”.

Oprah is supposed to have screamed out to a friend: “Michelle hates fat people and doesn’t want me waddling around the White House!”

No one at the White House was available for comment. - Daily Mail