Auntie Mom 

When you adopt your sister’s children from foster care. You can also become guardian of your sister’s children as well. Basically, becoming a parent to your sibilings children ie: your nieces and nephews

I have a birth mom that loves me and a auntie mom who is raising me.

Auntie Mom by #theauntiemom May 17, 2018

Auntie Mommy 

When your skank as sister and ex baby daddy get together and she acts like the mother of your child.

Auntie Mommy is coming to pick up pills.

Auntie Mommy by Missknowitall6969 November 26, 2016