Fiction With a Positive Outlook on the Realities of Being a Step Parent

Hi

I'm looking for a fiction book that portrays the difficulties and realities of being a step parent. Literary, slice of life, character driven stories encouraged.

I have no kids of my own and no intention of having them but now I have 3 step kids and it's amazing and the worst. I would love some perspective in the form of a really good fiction book.

Thanks!