Imagine pranking the school by pretending to be a Weasley twin.

In this era the Mauraders are alive and that's including regulus and you guys are in the same year as the twins

Fandom: Harry potter
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You and the Weasley twins had been friend for first year and always got in trouble for pranking people.

For you it was a natural force to be a prankster since you were a lupin-black and the marauders minus Remus were training you to go to the full extent without getting caught

When the twins were chilling in the common room just randomly chatting about either schoolwork or family since there wasn't much to do for them, but you had homework to do.

As you sat at your desk in your dorm thinking about random stuff while you got the best prank idea ever, so you got up quickly and ran downstairs.

"George and Fred, I just got the best idea ever!" You exclaimed as you stood between them.

The sat in silence for a bit since they always heard the opposite when being called before laughing their ass off which you stood their unamused for a bit before starting to laugh with them.

"What's your prank idea?" George asked as he moved to look at you as his long leg's dangles over the arms of the single chair.

"Alright if we made a Polyjuice potion made from your DNA I would drink it so I would be one of you guys so while me and George or Fred is in one place the other twin, or I would be doing a prank somewhere else" you explained looking in-between them.

"That's actually not a bad idea since we could do a lot with that like pranking filch or McGonagall without getting into trouble" Fred spoke out in thought before grinning mischievously.

"So, it's a plan or are you waiting for me to finish my homework?" You asked and they nodded.

"Yeah, we will just wait till you finish your homework because we can have so much fun when your free for the rest of the day" George spoke out with a small nod causing me to smile softly and headed back upstairs to finish off my homework.

After an hour you finished yours and the twins since you know they wouldn't have done it properly or at all, so you quickly put it on their trunks before heading downstairs.

"Ready?" I asked as they looked up at you then shot up from their spots in excitement and walked out with you following closely behind as they headed to the potion's classroom.

After the potion was made despite the boys being a massive distraction to you while making it so when one of them turned around you forcefully pulled a piece of their hair out and put in the cauldron

"What the fuck Y/N!" Fred exclaimed scratching his head from where you pulled it from

"I told you two to shush and you didn't" I chuckled "so I took drastic measures" I added with a small evil smile.

"Yeah, but still a little warning would be good too ya know" he spoke in slight pain.

"Oh, grow up" I rolled my eyes unamused as I finished the potion off "and it's done" I replied after a few moments.

You filled up 10 bottles so that it would work out through the day, and no one would be suspicious.

"Ok now bottoms up sunshine" George smirked as they watched you amused.

"I know you two relax" I chuckled amused as I put the bottles in my side bag before pouring some in a cup biting my lip slightly before drinking it enough so that it would work.

After a few moments you went to the sink because you felt slightly sick but after a few moments you became lightheaded and fainted causing the boys to rush to your side luckily Fred caught you before you hit the floor.

About 5 minutes had passed and you were sat up right with a cold compress to your head

"Thank you" You smiled as you removed the cold compress from your forehead.

"Well, it worked just didn't expect the whole fainting" George chuckled amused as he got you a glass of water which you smiled at him thankfully before taking a sip.

"So, what's first on the agenda?" I asked after a bit before getting up and started the whole new prank themes we had just decided.

Timeskip to Kings cross

It was the beginning of summer, and everyone started to get off you followed the twins to Molly and Arthur who were with my family as well.

"Uh molls I thought you just had twin boys?" James questioned confused as he watched them walk over.

"We do you know we do" she chuckled before turning in his direction and she looked confused.

"Morning Fred, George and...?" She trailed off thinking of the name she called you.

"Fenrir and you call yourself our mother" you spoke out shaking your head disappointed.

"Sorry yes Fenrir" Molly spoke out apologetically as they all headed out to go home but you fell back and stayed with lupin and Sirius.

When they got to the bridge to cross over the tracks the marauders looked at you suspiciously until Remus spoke up

"Shouldn't you be with Molly?" Remus asked quietly since you were the same height as him, he didn't need to bend down.

"Why when I live with you and not them?" I replied with a smirk causing James to catch on laughed like a mad man which ensued the twins, Harry and Sirius just for the fun of it.

"James what are you laughing at" lily asked with a small chuckle looking around as I gave her a small wave and she waved back awkwardly.

By the time they got to the of the bridge the potion wore off and lucky for you the place was quiet and somewhat empty, and I was my normal height next to Sirius.

When the Weasley were going their own way, she said bye to everyone and walked off before she paused for a second.

"Where's Fenrir?" She asked.

"Mom who's Fenrir?" Ron asked confused playing along with the twins.

"The triplet?" She replied looking around and counted the heads.

"You only have twins, and you call yourself our mother" George shook his head as the boys walked on causing her to stand there for a bit before following them
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Sorry, this isn't what I expected it to go it was meant to be a lot funnier, but I hoped you like it none the less.