Authors Note: Thanks a bunch to my beta, Julie. ) I reated this story M, although it might not get that way until the very end...if at all. I just wasn't sure that else to rate it as. xD
Please Review.

Disclaimer: I do not own the Harry Potter series, not it's characters in any way, shape, or form.

Chapter 1
The Potions Mishap

The dungeon was dark safe for one little candle floating behind the potion master's head, casting his shadow into the midst of the slowly bubbling red potion. He added a pinch of ground doxie wings to the concoction and watched it foam up a little. Picking up a long ruler he brushed the excess foam off the top into a tub to use later. He stirred clockwise three times and sat back on the bar stool to admire his work. His blond hair fell into his eyes and with a flick of his head he brushed it aside.

The door suddenly banged open, scaring the blond half to death. He was off the stool and crouching behind his desk with his wand drawn before he could stop himself. Old habits, and all that.

"Christ, it's dark in here. Malfoy, where the hell are you?" came a voice from the door.

Draco Malfoy peered around his desk and frowned. Standing up, he brushed the dirt from his robes. "I'm over here, Potter. Do be a little more quiet," he drawled.

Harry Potter walked further into the potions classroom and promptly collided with a crate. "Fuck! How the hell do you see anything in here Malfoy?" He cast a strong Lumos and held it high above his head."

"No!" Draco shouted, stepping in front of the potion and extinguishing Harry's light with a flick of his wand. "This potion is sensitive to light, you idiot. Why do you think I'm in the dark?" Draco rolled his eyes. With another flick, the candle floated towards the other wizard at the door. "Just follow the damn candle."

After many bumps and curses on Harry's part, the brunet stood next to Draco and peered into the cauldron. He sniffed the vapors coming off the potion, instantly pulling his head back, nose scrunched up.

"What are you making?" he asked, curiosity getting the better of him.

"A potion I found in one of my text books."

Harry nodded. "What does it do?"

Draco looked at the potion, added a whole root, and let it simmer. He pursed his lips and finally shrugged. "Honestly, I have no idea."

Harry frowned at the blond. "You have no idea?"

"Nope. The book was in Latin, and I didn't want to be bothered translating five pages of text on what it does. I just wanted to make it. Looked challenging."

"Soooo you have no idea what it does?" Harry asked again. Draco nodded. "Is it legal?" the ex-auror finally asked.

Beside him Draco huffed. "Well, of course it's legal. I checked that much at least. Wouldn't want you to have to return to your Auror ways. Now what the hell do you want?"

"Oh! Right," Harry said. He shook his head and grinned at his colleague. "I need you to make me a potion. Something that the kids can take, so they can bounce off the balcony without getting killed. For a bit of fun after midterms, you know?"

Draco stared at the ex-Auror turned Defense against the Dark Art teacher and thought for the hundredth time that he had gone completely mental. Letting kids bounce off balconies, who did that? With a sigh, he nodded.

"I'll see what I can do. When do you need it?"

"Next month if you can mange it?"

Draco nodded again. "I'll have it by then. Now make yourself useful and give me the blue container over there. It says wormwood on the label."

Harry slumped over to the shelf of ingredients, not wanting to spend another second in the dark room. He shifted quickly through the rows of neatly stacked blue contains – why they all had to be blue was beyond him – and return with the one Draco sought. Popping the cap open, he handed it to Malfoy over the potion.

The door banged open again. "There you are!" Harry and Draco both jumped, dropping the whole container into the potion in the process. Just before Draco could yell his warning about the lights, they all turned on. Snape, Hogwarts' newest Headmaster, stood in the doorway, looking a bit confused as Draco waved his wand frantically, trying to diminish all the lights at once. Harry stared at the potion, cocking his head to the side as it started to bubble and hiss.

"Uhm, Malfoy?"

"Fuck, fuck, fuck! Severus, help me turn these off!" Draco shouted, not listening to Harry.

"Malfoy!" the brunet shouted, taking a step back from the potion, which was now foaming over its rim.

Draco turned around, glaring. "What?" His eyes fell on the potion. "Oh, fuck. Potter, get away from there. I don't know what it's going to –"

The potion exploded. Draco was flung backwards by the force, smacking against one of the stone pillars. His head collided with the rock and he slid down to the floor, seeing stars. Snape was peering out from behind one of the students desks, turned on its side. Draco looked around but could see Potter nowhere.

"Draco, are you all right?" the headmaster asked.

The blonde pressed the heel of his palm to his forehead. God, that hurts. "Yeah," he said out loud. "I'm fine. Can't find Potter, though."

Snape cursed under his breath. He rounded the table and helped Draco to his feet. Together they walked to the remnants of the cauldron, looking around the floor for any sign of the wizard, even if it was a dead body. Nothing.

"Well since there is no body, let's hope that it means he's alive. I would hate to have to explain to everyone how the Savior of the Wizarding World was killed by potion accident," Snape said.

Draco chuckled hysterically, eyes wide. He would hate the consequences that would follow. A bundle of black robes caught his eye. He let his head drop back and moaned, "Oh gods, I've incinerated him!"

"You haven't incinerated anyone," Potter's voice came from the middle of the bundle. A black cat wiggled its way out of the bundle backwards. It turned around and blinked up at the two wizards with bright green eyes. A small lightning bolt-shaped tuff of white fur on its forehead marred its other wise black perfection. "Merlin," the cat breathed in Potter's voice. "The potion shrank me!"

The wizards stared down at the cat, blinking several times. Snape turned away and coughed into his hand to hide his laughter. Draco's lips twitched and finally settled into his usual sneer. He crouched in front of the cat and shook his head.

"Not quite, Potter. It turned you into a cat."

"Pardon?"

Draco conjured a hand mirror and held it up for the cat. "You're a cat, Potter."

The black cat blinked at its reflection. Nose twitching, it leaned in, sniffing the mirror. One ear twitched. Finally the cat straightened itself again and looked up at Malfoy.

"I'm going to fucking kill you," Potter-cat said.