My 11year old step daughter has told her dad (my husband) she doesn't want anything to do with her 3 day old sister. She lives with her mum and younger sister (8) and has yet to see the new arrival. Over the last 6 months we have tried to include her and ensure she knows nothing is going to change but as the birth has drawn nearer she has become more insecure. The younger sister wants to see her and has asked lots of questions. Any advice on how to deal with this situation?