Sirius was practically giddy with glee. This was what he had been missing, Pranks! The Marauders, all together, pulling something huge and wonderful and just a little mean. There hadn't been enough of this lately.
He was in his element, rushing around cooridors, charming every suit of armour and statue he found to sing the Gryffindor fight song. He sang along quietly as he worked, ducking into shadows and alcoves as students wandered by.
"Fight fiercely, Gryffindor! Fight, fight, fight! Impress them with our prowess, do. Oh, fellows, do not let the Crimson down;, Be of stout heart, and true. Fight for Gryffindor's glorious name! Won't it be peachy if we Win the game? Oh goody! Let's try not to injure them, But fight! Fight! Fight!"
He finally ended up at the Fat Lady, who was in integral part of this game. He smiled winningly at her, and she gave him her best dissaproving stare.
"Are you really sure this is necessary?"
Sirius nidded, grinning from ear to ear, and the Fat Lady sighed.
"Oh very well, I shall convinced the other portals to change all passwords to 'Gryffindor is bloody ace, and you're all a bunch of stinky toilet heads.' Though I do wish you would come up with something slightly less vulgar."
Sirius shook his head.
"If you want that painting of the oak matured mead the password has to be exactly what I told you. Capiche?"
She nodded, looking hard done by, before slipping out of her painting. Sirius glanced around the hallway, sure everything was quiet, before dashing down to the Great Hall to find the others and enjoy the fun.