Zayn and Harry a newlywed couple want to try for a family. They adopt twin boys that come from a bad home, and try to better their life's as much as they can. Along the way they come run into a few unexpected surprises.
"Daddy, do you believe in miracles?"
"I don't know. I guess so, kiddo."
"...I do."
Or, the fic in which Harry and Zayn are divorced, and their son is very, very determined to have them spend Christmas together as a family again.