American businesswoman Jennifer Acruri has claimed Boris Johnson told her about his fifth child during their ‘special relationship’.
Ms Acruri appeared on Good Morning Britain where she refused to deny they had an affair but said she was ‘heartbroken’ after being ‘cast aside’ by the PM.
When asked directly “was it an affair”, she replied: “I’m not going to answer that question, but as you can tell there was a very special relationship there and when it did come out, half the people already assumed the affair and told me to admit.
“The other half just wanted me to deny, deny, deny.”
Her links with Mr Johnson came under public scrutiny earlier this year over allegations she received favourable treatment for her business ventures during his eight-year stint as Mayor of London.
Host Piers Morgan then quizzed her about whether they spoke about Johnson’s love child.
Pushed on how many children Mr Johnson may have, Ms Arcuri said: “I think I have a vague idea. I asked him once.”
She added: “I asked him once if he had as many kids as Ken Livingstone, and he said no.”
Asked for more detail, Ms Arcuri continued: “Well, he had the four, and one” with another woman.
Asked whether the public should know these details of Mr Johnson’s life, Ms Arcuri replied: “Sure, sure, it’s part of what I would say, you know, would be becoming of his character.”
It comes after Johnson was left flustered when he was asked how many children had attended state school during a radio Q&A last week.
Johnson has split from wife Marina Wheeler with whom he had four children and is currently dating Carrie Symonds.
Johnson and Ms Wheeler, who married in 1993, have four children together – Lara, Milo Arthur, Cassia Peaches, and Theodore Apollo.
But he has had multiple affairs, including the one with Petronella Wyatt which led to a pregnancy that was terminated.
And a 2013 court ruling said the public were entitled to know about claims that one affair – with art consultant Helen Macintyre – resulted in a daughter who was his.
The child’s family had sought to stop the father being named.
But the Court of Appeal said: “The core information in this story, namely that the father had an adulterous affair with the mother, deceiving both his wife and the mother’s partner and that the claimant, born about nine months later, was likely to be the father’s child, was a public interest matter which the electorate was entitled to know when considering his fitness for high public office.”
The Prime Minister cut contact with Ms Acruri after their dealings when he was Mayor of London were put under the spotlight.
The Sunday Times reported in September that when Johnson was mayor he failed to declare close personal links to Arcuri, who received thousands of pounds in public business funding and places on official trade trips.
Johnson has said everything was done with full propriety and that there was no interest to declare, and a government audit report last month ruled a decision to award a £100,000 grant to a company run by Arcuri was appropriate.
The police watchdog – the Independent Office for Police Conduct – is investigating whether Mr Johnson broke rules by not declaring his relationship with Ms Arcuri when he was Mayor of London.
The links between the pair have came under scrutiny following allegations she was given favourable treatment on business ventures during his time at City Hall.