Professor, I shrank James Potter!

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AN: A little idea I borrowed from someone and elaborated on it. It was going to be bigger story, but I don't have time to write a seven novel fanfiction. You can have this little series of chapters from it instead. Enjoy.

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Charming capabilities of a two-year-old

The Potions class was a-bustle with activity. The sixth years had projects that they had been working on for the last six lessons, and were keen to finish off to get good marks in the lead up to their OWLs. Every person was working diligently, with the exception of a certain someone sauntering over to chat-up the object of his affections.

'Alright, Evans?'

'That's Alice's seat, Potter.'

'Alice won't mind if I borrow it for five minutes,' James Potter slid into said seat as he continued, 'How's your Polar potion coming along?'

'Fine.' Lily said icily.

James hesitated in the icy glare. 'You don't look it, want some chocolate?' He started rummaging through his pocket.

'Would you piss-off?'

'Now, now.' James chuckled. 'That's not very charming language, Evans.'

'I'll show you charming.' Lily waved her wand threateningly at him.

'You're charming.' James fluttered his eyelashes at her. 'Almost as much as I am.'

Lily snorted. 'You have the charming capabilities of a two-year-old.'

'You shouldn't underestimate the charming capabilities of a two-year-old.'

'James Potter.' A voice cut across the pair's argument. 'Would you please stop harassing Miss Evans and return to your seat.'

James threw a wink at Lily before standing and turning to his addressee. 'Apologies, Professor Slughorn. I'm just doing the rounds.'

'Once has returned to his seat,' Slughorn addressed the whole class before looking at James pointedly.

James rolled his eyes and made his way back to his seat.

'I want all eyes this way.' Slughorn waited for the class to settle before he continued. 'Alright, this is a perfect example of an anti-aging potion – effects take one eleventh of how many years you go back to reverse. Overdose of this particular potion can lead to reverse death trauma, which means that you will cease to exist.'

A shudder dispersed through the class.

Slughorn held up Snape's vial. 'Of course, this is highly illegal in unsupervised conditions, but seeing as this is a controlled environment, I would say there is an opportunity to give it a trial run.'

Slughorn beamed around at the uncertain looking students. The possibility of death didn't quite fancy any of them.

'Don't look so worried.' Slughorn scoffed, 'I do have enough remedy should someone try it.'

'Alright then, I'll do it.'

Severus, who had been standing next to the Professor up the front, stared in surprise.

James Potter had stood and swaggered up to the front, rather playing up the doom music people were humming. Enjoying the sudden claps and chants, James popped the cork off the vial and took a mouthful.

'Potter, no!' Lily suddenly screeched.

James had only had half the vial before he lowered it, looking at her, amused. 'Don't you trust Snivellus' potion?'

The vial was suddenly snatched out of his hands.

'I'm sorry.' Slughorn spluttered, suddenly rather scared. 'I meant to say only half teaspoon would send you back a year.'

James paled as a gasp went around the room. 'Half a teaspoon?' James suddenly blanched and his hands went to his stomach as he doubled up from the odd shrinking feeling he suddenly had.

'James!' Sirius howled in fright as he began de-aging right before their eyes.

A confused 14 year old James Potter stared up at his classmates who stood around him. 'What's – what's happening? Did we win?'

'Win what?'

'Quidditch.' James peered at Sirius as though seeing him for the first time. 'S-Sirius… but… did you take an aging potion?'

Sirius didn't get to respond as James suddenly doubled up again.

'What the…?' The ten year old James stared around, confused. 'Where am I?'

James doubled up again.

'Mum, that's my …?' The eight year old looked positively bewildered as to where he was before he doubled up again.

Lily hurried forward, her wand outstretched. 'Less but faster time jumps, he'll stop soon, I hope it's in time. I'll shrink his clothes, he'll drown in those first, he's so small.' She waved her wand and while his robe had simply slid off of him, the rest of his clothes tightened around his shrinking frame.

'Here, make him drink this.' Slughorn shoved the remedy at Sirius who almost dropped it in his shaking hands.

'Where's mummy?' A teary six or seven year old James looked positively frightened.

'Drink this and she'll come.' Sirius invented, thrusting the vial at him.

James didn't have time to object and spluttered as Sirius tipped the contents into the smaller boy's mouth before dropping the glass as he doubled up again, this time with a cry of pain.

The next few times James changed, there was no time for dialect he was simply changing too fast.

Lily crossed her fingers in her pocket, he had to stop soon.

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AN: I love cliff hangers, don't you? I also love reviews, so please leave me a little note?

Mandatory Disclaimer: Harry Potter belongs to the genius that is JKR