Based on Insinerates AU on Tumblr!
An AU where person A is a human, while person B is their roommate... but also a werewolf. The catch? Only person A knows B is a werewolf.
Another catch? Person As friends don't know Person A has a roommate.... but a pet dog.
(Size of werewolf)
Defensive?
Only one person knows person Bs secret apart from A....
And B finds it hilarious to tease them