Re: We're pretty non-traditional, but it works for us.
We are not the same, but in some ways similar. My fiance and I were not together when our son was born, and when he was 1, I moved in with my best friend so that my son would have more adults around and I wouldn't lose my mind. She is his "tia" (auntie), but she really is like a second parent in a lot of ways. At the same time that we moved in, my son's father and I got back together and now 2 years later we're expecting #2. We live all together in intentional community with my friends' partner. When they have kids, we will be their "tia" and 'tio" and plan to be extremely involved in their raising as well. My friends' parents treat my son like their grandchild, and I may stay home to take care of her kids when she goes back to work in the future.
I know it's not the same, but parents come in lots of forms in our family.
Kara, engaged to B, mama to Jaime Gabriel 04/09 and Beatriz Xochitll 10/12