Everyone's heard and used the old cliché "Don't work with children and animals".
Trying to work with both at the same time came make it pretty obvious why the saying is so well known. However, more often than not it's a goal well worth pursuing. The child can come alive in the lens with the pet in his or her arms and there are often tender or hilarious moments to capture as a result of the animal's behaviour.
I never try and control the situation too rigidly. I just position the subjects where the light is good and let the scene unfold and I'm rarely disappointed.
I'm also including this shot of the girl under the leafy canopy - for no other reason than it's just one of my favourites.