That said, if I was looking after a GF's child just for the day I would probably go to her baby first IYKWIM?
Well I thought about that because that would be my inclination and it's certainly the case when we have visiting children staying with us - it's going that extra step because their parents aren't there. However we all know our own children have the capacity to exhaust us in a way that other ppl's children do not, and two children under the age of 12 mths is going to be a handful any way you look at it.