Heather's favourite number is two - she has two arms, two legs, two pets and two lovely mummies. But when Heather goes to school for the first time, someone asks her about her daddy - and Heather doesn't have a daddy! But then the class all draw portraits of their families, and not one single drawing is the same. Heather and her classmates realise - it doesn't matter who makes up a family, the most important thing is that all the people in it love one another very much.