Boris Johnson's new communications chief accused the Prime Minister of "digging his political grave" with ill-judged remarks.
Guto Harri - who was Mr Johnson's communications director for four years while he was Mayor of London - made the remarks in 2018, after his old boss compared Theresa May's Brexit deal to a "suicide vest".
He also referred to reports of Mr Johnson's numerous affairs, saying: "Unfortunately he is now dragging us into a place where we think that we can joke about suicide vests and that we can be sexually incontinent."
