You and Sirius were friends. However you felt like he was always trying to get your attention. You were in your dorm when suddenly a black dog walked in. Knowing it was Sirius who had the ability to change into a black dog or so called Grim, you smiled.

The black dog went over to you and sat in front of you and tilted his head in an adorable way.

(To be clear: Sirius is a human that can turn into a black dog.)