By Suirano
Part 2 of the "A Good Pet" comic that is currently on Patreon. The little series continues with Luna trying to prove that she can be just as good of a pet as Chrysalis.
MLP: A Good Pet (Part 1) - Chrysalis
MLP: A Good Pet (Part 2) - Luna <--
MLP: A Good Pet (Part 3) - Celestia