Conversation I had whilst bathing my 3.7 dd tonight:
DD X (birth mum) couldn't look after me could she.
ME No darling she couldn't
DD So she gave me to you
ME Yes she did
DD I love X I'm going to make her a big cuddle
ME That's nice, why?
DD Because she gave me to you and I love you and your the best mummy ever.
ME lump in throat and thinking yes I think X is pretty cool too.