Vogue Williams tricked her Heart Breakfast co-host Jamie Theakston into thinking she had gone into labour during their Monday morning radio show. The star, 40, is weeks away from welcoming her fourth child with husband Spencer Matthews, 38, and used her pregnancy for the incredible prank. Heart producers were in on the trick, with Vogue using a water balloon under her chair to pretend her waters had broken live on air. Vogue, who is standing in for Amanda Holden on the show, started her performance by telling Jamie that her back was 'really sore' before dropping the water balloon. 'What just happened? Oh my God!' she shrieked prompting…
