Very cute chapter; I love the poetic irony of Harry not realising just whom he was speaking to about his abuse (Dursleys are definately in trouble; Sirius didn't have much self control to begin with.) Bit surprised at Sirius licking Harry but, then again, he was a bit screwy after Azkaban...
Author's Response: I figure Sirus has been hiding out as a dog so long, he's gotten the behavior down very well. And a dog licking is the equivalent of a human hug.
Then too, Sirius was a bit screwy even before Azkaban :)