The 'baby'

I heard my mum and dad talking, and the 'baby' is going to be a boy! I still can't wait to see what exactly a 'baby' is, but from what I can make out, the Little Blonde Boy and The Little Brown Haired Boy are both boys too, so I'm thinking it's going to be something like them, since they are both boys too. The Girl With Attitude is different - it's hard to explain - I'm just a dog!