Married acting duo Ali Bastian and David O' Mahony were delighted to welcome OK! into their beautiful west London home to introduce their newborn daughter to the world. Hollyoaks favourite Ali, 41, and The Musketeers star David, 40 - who also share daughter Isla, three - view themselves as "very lucky and grateful to have two beautiful girls", having welcomed Isabella Charlotte on 11 February by Caesarean section. Here, the pair open up on Ali's turbulent labour - the blonde beauty having suffered severe health complications - and reveal why Isabella makes the perfect addition to their family-of-four.