Whatever can be in mummy's tummy to make it so fat? Could it be a hippo? It kicks like a kangaroo and wriggles like a crocodile. The little girl is worried, and is quite relieved to find it is only a baby brother. Dad takes a photo of his two 'special somethings'. Although I had to wonder why the little girl wasn't just told her mum was having a baby, the pictures are warm and cuddly, and the family dog helps provide reassurance to soon-to-be siblings. Imaginative - and most children will twig that the bump is a baby and feel superior in their knowledge.