I discovered yxour story today, through friend's-friends browsing. Holly, this was the best Sirry I read in ages. It had lots of my kings all at once: Sirius! Grown-up Harry! Bestiality! Hot sex! A cottage in the coutry and most of all, a happy ending.
There are so few Sirius/Harry stories with a happy ending.
P.S. And Sirius *wanting* to be taken as dog. *yay*