posing 4 siblings - need advice

[holly1230_11]

I have been asked to take a portrait of a group of 4 siblings. It is an eight year old girl, her eight year old brother, their 2 year old sister and their 6 month old sister. Any suggestion on how to pose them?

[Sam]

Are you looking for a formal type pose or a candid one?

[holly1230_11]

I'm looking for something they could use for a Christmas card.