Sirius liked listening to Teddy and Remus talk. He liked how easy it sounded, howncomfrotable they seemed. He sort of wanted to leave them too it, but after the talk in the hallway he didn't want to be alone either. He considered grabbing something to eat, then decided against it. Food was always a weird subject with him, and right now he didn't think he could stomach anything.
So instead he changed, a large black dog, still half a pup really, lying sprawled where he had once been. He huffed, then stood and went over to stick his cold nose in Teddys ear before curling up between them. This way they could talk, he could listen, and maybe get pets in the process.