It was not until after Stephanie was born that Miss Macintyre told Mr Rolin of her doubts about who the father was. Paternity tests have confirmed that Mr Rolin is not the child’s father – whom he believes to be the Mayor of London, Boris Johnson. Speculation had already been rife since he had moved out of the family home last summer amid claims that the child was a result of an affair between her husband and his former art adviser. Neither Mr Johnson nor Miss Macintyre have ever commented on the resemblance between the child’s features and flaxen hair, and that of the Mayor. Mr Rolin is certain of his views – and on Thursday accused Mr Johnson of having “no moral compass”.