Declan Donnelly makes cheeky admission about sex life with wife Ali Astall after welcoming daughter Isla

  Declan Donnelly made a cheeky admission about his bedroom antics with his wife Ali Astall[Getty] Declan Donnelly made the honest remark about his sex life with wife Ali Astall to his pal Stephen Mulhern.  Dec’s Britain’s Got Talent co-host Stephen Mulhern, 41, let slip the information in a new interview with The Sun.  Britain’s Got More Talent host Stephen revealed how he quizzed standard Geordie Dec following the birth of his and Ali’s daughter Isla in …