Dermot O’Leary’s pregnant wife Dee Koppang looked simply stunning as she showcased her blossoming baby bump as the couple prepare to welcome their first child together.The couple, who have been together for 17 years, announced in February that they are expecting their first child together.Taking over hair and makeup duties for her presenter husband, 46, as he presented BBC’s One World: Together At Home on Sunday night, Dee beamed as she stood behind her husband in the mirror.