Biden tells staffers 'key' to lasting marriage is 'good sex': book

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President Biden’s key to a lasting and happy marriage is "good sex," according to a new book detailing Jill Biden's role as first lady.

"Joe may have tamped down on his public bedroom declarations winning the presidency, but he has joked to aides that ‘good sex’ is the key to a lasting and happy marriage, much to his wife’s chagrin," Katie Rogers writes in an upcoming book obtained by Fox News Digital.

The book describes that ahead of the 2008 presidential election, in 2006, "Joe still seemed more interested in staying home with Jill than in running for the presidency."

"I’d rather be at home making love to my wife while my children are asleep," Biden said in public remarks that year when asked about a potential 2008 presidential run.

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"The remark might’ve surprised some in the audience, but it drew little more than a shrug from a spokesman, who explained that the senator was ‘frankly totally in love with his wife,’" the book continued.

"American Woman," authored by New York Times White House correspondent Katie Rogers, will be released Tuesday and documents how the role of first lady has evolved in the 21st century, focusing on Jill Biden’s tenure in the White House.

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