A Conservative MP famous for mentioning his wife in the Commons has reportedly admitted leaving her for a married physio 20 years younger than him.
Peter Bone, 65, told the Sun he has lived apart from his wife Jenny for more than two years and is in a relationship with 45-year-old Helen Harrison.
He has been seeing Ms Harrison at his taxpayer-funded £1.5 million apartment in Westminster, according to the newspaper.
The Wellingborough MP is famous for mentioning "Mrs Bone" during debates in the House of Commons.
A search of the official Commons record, Hansard, suggests Mrs Bone has been mentioned 79 times in the chamber by her husband and other MPs.
The parliamentary register of MPs' secretaries and research assistants states that Mr Bone sponsors a security pass for a "Helen Harrison", who is listed as a district councillor for East Northants Council.
Mr Bone, a prominent Brexiteer, told the Sun: "My wife and I have been living apart for more than two years, during which time I have formed a relationship with Helen Harrison.
"Neither Helen nor I intend to make any further comment about this matter."
Theresa May left MPs howling with laughter in October 2016 with an innuendo-laden response to a question from Mr Bone on his birthday,
He urged the Prime Minister to deliver him another birthday present by agreeing to reopen Wellingborough Prison in his constituency, adding: "Or would you rather just sing happy birthday?"
Mrs May replied: "I'm very happy to wish you a very happy birthday today, many happy returns.
"I hope that Mrs Bone is going to treat the occasion in an appropriate manner."
In 2011, David Cameron joked to Mr Bone: "I feel that a very big part of my life is spent trying to give pleasure to Mrs Bone. On this occasion, I can go only so far."
The Sun carried numerous photos of Mr Bone and Ms Harrison around Westminster.
According to the newspaper, she is a Tory campaigner and former parliamentary candidate, and alongside Mr Bone is a director of pro-Brexit campaign group Grassroots Out.
Additional reporting from the Press Association.