You made me totally reconsider Abeforth as a character, and not only an obscure feature of the background. I've never spared much thought about him and his history, but to see him like this - a bit old and cranky, cinical and with his sadness and hurt sealed inside - was to see him come alive under my eyes. And I really loved to have him as the narrator - a lot of unespected insights, new points of view on other more common characters and a tangible sense of what the second war means to someone who was well into his adulthood in the first.
Aberforth hadn't ever considered that someone like Sirius, all bravado, would be so eager to drop to his knees and wrap his mouth around a cock. But as he idly slid his fingers through the silky, thick hair of Sirius's head, he was reminded of exactly how Sirius's fur felt when he was a dog.
And this. Thanks for remembering us that his form is a dog, under all that arrogance. I love when this side of Sirius emerges.