You're Buggered, Siriusly!

Sirius breaks out of Azkaban two years before schedule. He's pissed, half-mad and prepared to do anything to protect his Godson. He's going to make the Wizarding world pay for the hell it put him through- and have some fun along the way, of course! Super! Sirius, Dark Lord! Sirius, but not evil. No slash. May include ships later. Mainly from Sirius' (and Harry's) point of view. AU.