Probably a bit strange at first.I amsure they will be fine they will be so loved and not treated any different. Always been loved just have to share it with the new baby.
A friend of mine eventually had to give away their much-loved pet dog after she had a baby because the dog kept becoming aggressive when the baby was around and they feared he would harm it. Different breed though, so that might make a difference.
Whatever, I'm sure Andy and Kim will have a plan in mind.