Oh, that was delightful. Sirius choosing "Snuffles" as a nickname because of Regulus is pretty much the most adorable idea that I've ever heard, if not just a little heartbreaking. Those poor boys. :(

Your characterisations were spot-on here. juliette_kelley recced your stuff on her LJ, and I'm always on the lookout for great authors. I'd like to add this to my recs list, if you don't mind. :)