Disclaimer:

I do not own the characters of Harry Potter, these belong to that wonderful author JK Rowling and the various publishing companies used to publish her works. I am however borrowing them, no not to make money but for fun and fun only.

Summary:

Sirius Black knows how to play pranks, but he just never knows when to quit. Follow a series of one shots to see how much trouble he can get into…

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Chapter One: Ten Points to Gryffindor:

The day had started out rather nice, it was a bright spring day at Hogwarts and a young man was seated outside reading a book. He had messy black hair, intense green eyes behind his round glasses, a black tail, ears and whiskers. Wait what? Why did Harry Potter, a young wizard have a tail, cat ears and whiskers? One must go back to a few hours earlier when Sirius Black proclaimed he was bored to Remus Lupin. Both men were in Remus's office and at this time looked fully human, Sirius was a tall stocky man with long shaggy near black hair, a neatly trimmed goatee and gray eyes. The other was a tawny haired man with blue eyes and light tan.

"I am bored." Sirius sighed.

"You can grade papers with me." Remus said knowing things would get bad when Sirius was bored. "Or go away, I don't want to be involved in your insanity."

"Pranking is not insane." Sirius said, "come on Moony where is your since of humor?"

"I have one, but here at Hogwarts I teach and set an example, go away!" Remus said.

"Fine, you are no fun and it's not even that time of month!" Sirius snapped grabbing some chocolate off Remus's desk, "stupid PMSing…."

"Get out of here!"

Sirius did leave and managed to find some sugar, I think his charming personality got some gullible first years to give him sweets or he just asked the house elves. Anyway by the time he was well and sugared up he saw Draco Malfoy. The tall silver blond, gray eyed pale teen looked at the head of Black house wondering what his insane cousin would do. He found out rather quickly as Sirius started to cast spells, all harmless of course but when he was done Draco had yellow cat ears and tail with black stripes and was lodged in one of the Weasley portable swamps.

"What the hell is wrong with you Black?" Draco roared, "what until I tell my mother!"

"Need a hand?" Harry said next to Draco.

"Why would you help me scarhead?" Draco shot at Harry.

"I am sorry for my godfather, he is bored and well when he gets bored he does stupid things." Harry sighed getting Draco out of the swamp. "Looks as if I will have to stop him, again."

That was harder to do than it looked, though Harry was a powerful wizard he was not as experienced as Sirius, though he had all his mother's spell books. Harry ended up chasing his godfather out of the school and a fine prank battle began. That was how Harry ended up with a cute cat tail, ears and whiskers but Sirius ended up far worse. Harry had practiced and practiced and practiced and got a wonderful spell down that his mother had come up with and all was peaceful once more at Hogwarts.

Now Severus Snape had been having a good day, a very good day until he walked into the office of Remus Lupin. He was a tall thin man and what with his black greasy hair that hung straight to his shoulders, his black eyes, black eyes a hooked nose and black robes that billowed perfectly, he looked down right sinister. He threw a bag on the desk and sat down looking around first for one insane Animagmus he was about to speak when Draco Malfoy stormed in the room very angry. Severus thought he looked ridiculous with his cat ears, tail and whiskers. That and the boy was fuming mad as well and Severus raised an eyebrow and let out a breath.

"Black?" Severus asked.

"How dare he do this to me!" Draco roared, "when my mother finds out he will wish he had never dared humiliate me!"

"Where is Black now?" Severus asked.

"Potter said he would take care of him." Draco replied.

"Ah, um I know what he will turn her to, one of his mother's spells I think." Remus said smirking.

"I will go find him." Severus said.

He got up and left the room and headed down and out of the school. He found Harry seated cross-legged by the lake and he saw a jar by the teen. He walked up and clasping his arms behind him he saw a miniature Sirius Black standing in the jar arms folded glaring up at his godson. Severus looked from the teen with black cat ears, whiskers and tail, then to the angry wizard and smirked and said a line that would go down in history.

"Very good job on transfiguration Potter, ten points to Gryffindor." And with that he walked off in a billow of black robes.