A/N: Should I up the rating on this? Because there will be more stuff like this during the rest of this story just because. I don't want to offend anyone so please review let me know if I should!

Disclaimer: I'll own Harry Potter when Helen Flanagan actually does well in a Bushtucker trial. And for anyone who doesn't watch that show, basically, I don't own it.

The duel began slowly, both competitors sizing each other up, finding their weak spots. Hermione felt exposed under Lucius' calculating gaze. His grey eyes burned into her skin. It was like frying an ant with a magnifying glass. She knew what he was trying to do. He was trying to make her as uncomfortable as possible until she gave away her weak points. But Hermione remained detached, emotionless, unaffected by his stare. The wand twitched in his right hand, practically bursting with pent up magic. The lack of magic over the summer must not be reacting well with Lucius because although he appeared calm and collected the twitch in his wand and constant blinking of his eyes suggested otherwise. He would be quick but he may be clumsy as well. Deciding that this was as much as she could get, she began quickly firing off spells.

"Petrificus Totalus! Tarantallegra! Stupefy!"

"PROTEGO!"

"Flipendo!"

"Furnunculus!"

Hermione narrowly dodged the curse before firing a few more off at him. He was a good dueller, great really. You'd have to be blind not to see it. Even in the midst of such a fierce duel, he still gave off a look of elegance.

Soon, the room was filled with flashes of colour and bits of debris. The hexes and jinxes were steadily growing darker, teetering on the edge of becoming Dark magic but not quite. It was a fine line but they kept within Luke's rules even if it was only just.

"Rictusempra!" Lucius screamed.

Hermione twisted and her blouse tore across the front, revealing the black lace bra that Sirius had been inspecting when she first arrived at the Potters'. Hermione's cheeks flared and she stopped screaming spells at him. But the spells kept coming. She didn't even know that she was capable of non-verbal magic but she was too embarrassed to care.

Densaugeo! Conjunctivitus! Riddikulus!

Hermione knew that 'Riddikulus' was to be used on Boggarts but it seemed to work on humans as well. The whole class stared in silence at the buck-toothed, platinum blonde ferret that now stood in the place of Lucius Malfoy.

Luke walked over to her and fixed her blouse.

"You okay?"

"Of course," she said grinning, despite what had just occurred.

"That's my girl," he winked.

"Not anymore, Luke."

"Suppose not," he shrugged. "Anyway, amazing duel. Finally mastered your non-verbals, I see?"

"Not really, just a fluke, I suppose. I didn't actually realise I could do non-verbals until just there," she laughed lightly.

"Oh well. Mind telling me what you used so I can change him back?"

"Densaugeo, conjunctivitus and riddikulus."

"Well he's screwed."

"How?"

"I can't change a riddikulus back, there's no counter-curse for it. He's stuck like that until it wears off."

"Fuck."

"Language, Granger."

"I told you, it's Potter."

"So you did. Sorry. Now, what should we do with the ferret?"

"Can I tease him a little bit? Just for kicks."

"What did you have in mind?"

"Is that permission?"

Without waiting for an answer, Hermione walked over and turned her wand on the white-blonde ferret. Remembering what Moody had done in her fourth year, she cast a charm and the ferret began to bounce. The class – which had been silent since their duel – all cracked up laughing.

"Alright, alright, you've had your fun now. Set him down."

"But it's so amusing," she grinned and kept bouncing him.

"Yes, well, be that as it may, I'm a teacher and you and the ferret are both my students so I need you to put him down."

"Aw Luke," she whined, "you're not going to be all high and mighty now that you're my professor, are you? Because I can still beat you in a duel."

"You think?"

"I know," she smirked.

"I'll tell you what. If we have time at the end of class, we'll duel and see who wins, okay?"

"Fine."

"But you need to put him down now."

"Yes sir," she drawled.

Luke rolled his eyes. "Next pair?"

The duels went by fairly quickly. Severus won his duel and so did Lily. A quick 'expelliarmus' from Remus and his duel with Peter was over. Sometime during all this, Lucius had morphed back into his human form and was now scowling. Hermione wandered over to him.

"Sorry about that."

"Sure you are," he grumbled.

"Okay, so I'm not. It was amusing and you seemed like the kind of guy who needed taken down a few pegs. Don't worry, I treat Black the same way and he's my brother's best friend."

"I suppose that's true," he moaned.

"But you're still pissed."

"You don't say," he replied dryly.

"Well, really, you have no reason to be. Apart from the fact that I made you bounce. But it was a duel."

"Are you always this annoying?"

"Yes."

"At least you're honest," he smirked.

"Anyway, I'm not sorry that I embarrassed you. But I am sorry that you're pissed at me now."

"What?"

"Never mind, truce?"

"Why?"

"Because I don't want to be making enemies on my first day."

"Fine, truce."

They shook hands and turned back to watch the duel.

As soon as every pair was done, Hermione found Luke standing behind her.

"Should we maybe take this outside? More space, less desks, you know," she laughed.

"Okay then, to outside!" he shouted and took off at run, Hermione hot on his heels and the rest of the class following.

Once they had reached a suitable stretch of ground, Luke began casting spells. Hermione shut her eyes and ducked before springing up to standing again, her eyes wide.

"Eyes open, Mya."

"Oh, the irony," Hermione said when a 'conjunctivitus' hit him square in the face.

He cast the counter-charm and kept duelling. He was tough, blocking most of her spells but never truly retaliating. When Hermione felt her breathing become heavier, she realised he was wearing her down. With low energy levels, she wouldn't be able to block or cast spells as easily. So she cast a protective charm around herself and gathered her energy.

"You know Luke? When you challenged me to a duel, I thought you would've made it fun. Like old times."

"Are you criticising my techniques?"

"Yes, I know that you're trying to wear me down, you've reverted back to your old ways." She clicked her tongue. "I expected better."

"Why you litt-"

"I wouldn't finish that sentence if I were you. Wouldn't be at all proper. I thought Madame raised us better than that."

Luke's ears flared red.

"Maybe I'll owl her. Tell her how her favourite student has slipped. You always prided yourself on being a gentleman, didn't you? Or at least that's how Madame saw you. You really never were though. God knows how many times we would've been caught if I didn't remember silencing charms."

Luke was blushing furiously. She walked closer to him so they were practically touching. Any spell that Luke cast now would harm him more than her. She whispered quietly to him.

"You used to scream my name when I went down on you."

She walked to his back, his shields coming apart slightly.

"Remember that? All those hours we'd spend dancing and when you'd finally gotten bored, you'd snog me senseless."

She traced the snake tattoo that she knew led down his back and he gulped, his shields weakening further.

"And even though I was yours for the taking, you never would."

She raised her own protective shields a little, knowing that they were slipping as her brain replayed the images.

"Why was that again? Oh yeah, I was too young. Shame really. I've grown up and you can't touch me."

She flicked her tongue over his earlobe, despite the fact that the whole class was watching. Their jaws were slack and their eyes bugged out but Hermione didn't care. She was far too satisfied with her distraction. He inhaled sharply and he felt his shields weaken even more.

"If it wasn't illegal then I'd jump you here and now."

And his shields were non-existent.

"Expelliarmus," she whispered gently.

Luke flew across the grass, landing on his stomach before scrambling to his feet. She laughed. They resumed their duel and this time, Luke tried harder. He fired more offensive spells while she raised her shields further. A few times, he almost managed to take her wand but Hermione was quick and dodged them narrowly. Luke was getting pissed off. The sheer embarrassment of taking this long to win a duel against a student was getting to him so he tried harder.

"Flipendo! Furnunculus! Petrificus Totalus!" he screamed.

"Locomotor Mortis! Incendio!"

A line of fire separated the two duellers but Luke quickly cast Aguamenti. He levitated Hermione off the ground making her really quite helpless but she grabbed the nearest tree and cast Finite Incantatem. From the top of the tree, she could see the class staring at the duel, amazed by it. She scrambled down the branches, avoiding Luke's hexes and jinxes before Disillusioning herself. She moved swiftly and quietly before a branch snapped and he realised that she was still in the tree. Hermione levitated herself out of the tree and dropped onto Luke's back. He fell to the ground and rolled over so she ended up straddling him. She removed the Disillusionment charm and placed her left arm across his neck, pinning him to the ground. His eyes widened at their position.

"Hi there," she smirked.

Her right hand slid down his arm and snatched his wand from his grasp. He gasped in disbelief. She had actually won.

She stood up and twirled his wand between her fingers.

"Told you so," she smirked again. She felt like a Malfoy.

"Well done, your technique's improved."

"I don't see how, I lost my best teacher."

"Who?"

"You, you arsehole."

"Ah, I forgot about that," he teased before taking his wand back. "But you need to stop swearing. Imagine the look on Madame's face if she heard you talking like that."

"I don't care what Madame thinks of me. She's not my Headmistress anymore and I never cared for her anyway," she said, lifting her nose into the air. "She certainly never cared for anything I did."

"That's because you were unnecessarily cheeky to her all the time."

"I was hardly cheeky!" she shouted. "I curtseyed every time I saw the bitch and I always said 'good morning' or 'good afternoon' or 'good night'!"

"Yes, but your words were dripping with so much sarcasm you could practically wipe it off your chin!"

"At least I didn't suck up like you used to!"

"Hey! I did not suck up!"

"Sure you never," she rolled her eyes.

"I'm hurt you'd think that of me," he sighed mockingly.

She shoved him playfully and he bumped his side against hers. She elbowed his ribs and he tickled her. She ran away from him and hid behind James which brought Luke's attention back to his class who still had their mouths agape at the scene playing out in front of them.

"Sorry about that, class dismissed."

The class turned to walk back to the castle and then Luke shouted again.

"Oh and Granger? Detention tonight at 7 for such bad sailor's mouth."

Hermione gaped at him.

"But Luke!" she whined.

"No exceptions."

"Fine," she grumbled.

The class walked up to the castle thinking 'what the hell is going on with her and the new professor' and Hermione walked up thinking the exact same thing.