a world of corruption.

by _-LeXx-_

Rating: teen
Tags: Sunset Shimmer, Narcotics, Gore, Twilight Sparkle (EqG), My Little Pony: Friendship is Magic, Dark, Death, Alternate Universe, Rainbow Dash, Equestria Girls, Trixie, Suicide / Self Harm, Starlight Glimmer, Profanity, Violence, Human
Length: 5380

in a world where nothing is as it seems, the mafia reign and nowhere is safe. starlight glimmer doesnt know what she's getting herself into when she agrees to become the apprentice of twilight sparkle, a doctor rumored to be insane...

In this world, the mane 6 never found each other, and each found a more... evil calling. starlight glimmer is a med student who wants to explore the differences in humans, and how to eliminate them to make everyone equal, so what better mentor for her than the renowned biochemist dr Twilight Sparkle! But Twilight isn't all that she seems, and may be connected to something far more sinister than Starlight could ever imagine...and maybe she'll join her, only time can tell. However,one thing's for sure: friendship isn't magic, and its doubtful it ever was...

Published 2024-04-08 19:20:00 UTC
Last updated 2024-04-17 19:03:44 UTC

After like one year - Sunset

Sunset had been rooming with Trixie for about a year, and the walls were now covered with crimson threads, so many that they would put a conspiracy theorist's poster board to shame. Pictures of mafia members and affiliates stared back at them in every room (save for the bathroom of course). Sunset trudged into the kitchen, where Trixie was calmly pouring herself a bowl of cornflakes.

"Need...caffeine....now..." Sunset mumbled - she couldn't even function without her morning coffee.
"You really shouldn't drink so much of that stuff, Trixie read that it's bad for you." the younger girl spoke, with the disdainful tone that Sunset knew wasn't as rude as it seemed.
"Chill Trix, I've been doin' this for years." Sunset croaked, her coffee was brewing slowly, and she was watching it as if the liquid was molten gold.
"That explains why you're so grumpy all the time." Trixie retorted. She was now 17, but still lacked the maturity that one would usually expect from someone of that age.
"Ouch." Sunset didn't have the energy to argue with Trixie right now - not without her coffee. Finally the coffee was ready, and Sunset practically inhaled it, not waiting a second before getting the elixir into her system.

After a deep breath, ready to face the plans she had for the day, she sighed and pulled some pictures out of her pocket, spreading them out like they were in a movie. They depicted a man with jet black hair, and menacing red eyes framed by a green aura. Trixie gasped -
"T-trixie... Trixie knows this guy..." Sunset's heart sank. She was hoping her theory wouldn't be true. Steeling herself, Sunset decided to press on with this. Even if it hurts, it's... it's what Trix needs to hear. With these- not exactly comforting - thoughts in her mind, she spoke in an even voice, hiding the tremble of sympathy jolting her brain.

"This is the mafioso affiliate known as King Sombra."
"H-he... he's the...one...
... they...were..." Trixie faltered, she knew- even without Sunset saying anything; she just knew who this was.
"W-we need to- to catch him!" Trixie forced the words out with the venom of a whole rainforest's worth of vipers.
"We will. Trix, don't worry, we're gonna bring this bastard in, alive or dead."
"Preferably dead..." Trixie added beneath her breath.
Sunset winced; ever since showing Trixie the pictures, she'd lost the dramatic aura that characterised her. It was replaced by a cold, calculating energy- one that reminded sunset way to much of...

Twi...
She shook her head, memories of the lilac-skinned woman flooded her mind as she agonized in mental turmoil.
No, no - get out of my head dammit- LEAVE ME ALONE....please... Twi.
Shaking any memories of her former girlfriend out of her head, Sunset focused on the present- she had to help Trixie find Sombra. Turning to the younger girl, she pulled out a set of keys, with a yellow and red sun keychain hanging off of it.
"Road trip time, kid!" she exclaimed, trying to salvage the broken atmosphere.
"...Don't call Trixie a kid." The younger girl said with a small whisper of a smile across her lips.
Sunset returned it with a smile of her own. Maybe the day isn't gonna be so bad after all.
As she opened the door, however, a sudden battering of rain lashed the ground of Trixie's porch.
I jinx'd it, didn't I...

The sky was a grey and black marble of clouds, with the rumbling of thunder approaching with an ominous grumble.
"Welp, looks like the road trip's cancelled now..."
"What??? Trixie demands to know why the hell it decided to rain now of all times?"
"Maybe the universe just wanted us to stay inside today?" Sunset asked, with a slight smirk at Trixie's melodramatic expression.
"Well....Trixie wouldn't be opposed to that..." She stopped, as if considering a life or death question, before adding, "if you make hot chocolate, and we watch 'The Grinchpony'"
"It's not even December!" Sunset argued- Trixie always wanted to watch 'The Grinchpony', even in January.
Not today kid.
"We're watching 'Doctor Hooves' and that's that."
" Hooves shmooves, The Grinchpony is way better" Trixie whined, Sunset knew the girl would go off on a tangent if she didn't agree now.
"ugh... fiiiiiineeeee"
"It's still annoying that we couldn't start to investigate today though." Trixie mumbled with an air of exaggerated annoyance.
"Blame the weather, don't blame me!" Sunset shrugged, looking up at the murky sky. She looked across at her roommate who abruptly looked up, before raising her middle finger to the sky, flipping off whoever was up there. Sunset chuckled - no matter how much she tried to act like an adult, she was only 17. She looked up again before raising her own finger to the heavens. The two women stood by the door silently, fingers raised, protesting against the world, at everything and nothing in particular.

Deep in the darkest alleys of Canterlot, Sombra lurked in the shadows as black as his hair, smoking a cigarette. As the smoke rose like a dark feather, he looked at the locket nestled in his other hand. It depicted a family, a set of smiling parents, and a child with an icy blue mop of hair. She must be almost 18 now, maybe I'll let her see her parents on her birthday. With the dark thoughts of murder in his head, he dropped and trampled his cigarette, relishing the moment the last ember flickered out, no doubt waiting to do the same to the girl. With the uneven smirk of someone who's about to start planning something despicable, the 'King' returned to the shadows where he reigned supreme.

Author's Note

dis chapter is dedicated to my peeps, thatbag + raar, u guys gave me the motivation to qrite this one <3

bitter beginnings

A body was strapped to a metal sheet, tied with thick elastic cords. Starlight's eyes widened, not with shock, more...curiosity. Why was this there? Who exactly was this person? These questions surrounded her head, deafening and overbearing, demanding the truth. Suddenly her view was obstructed, a matt black drape was meticulously placed over the steel sheet. A figure with a insectoid mask walked forward,violet eyes barely visible behind the beady marbles that resembled the mask's eyes.

Slowly pulling the mask off to reveal lilac skin, not too different from Starlight's own, the woman smiled at her, just a tad too widely to be comfortable with.
"Are you...Starlight?" She asked after a moment of pause.
"Uhh...yeah" came the hesitant reply.
"So you're the one Flute sent, nice to meet you! The name's Twilight Sparkle, and as of now, I am your boss."
Starlight hesitated.
"Flute?"
"Yeah, maybe you don't know her by her name...try... a woman with yellow skin and long pink hair?"
"Oh...yeah, thats the person who sent me, who even is she? She just showed up in this dark alley and sent me here!"
"That does sound like her!" Twilight grinned as if laughing at an inside joke Starlight wouldn't ever understand.
"...So...what exactly is my job? I mean I know I'm supposed to be your assistant, but what exactly do you do?"
" Why tell you when i can show you?" Twilight's grin turned a bit feral again as she lifted her gloved fingers above her head and snapped her fingers. Suddenly, a multitude of wires shot from the roof of the lab, coiling around starlight and rooting her in place.
"What are you-LET ME GO!" Starlight's heart was beating so hard, jumping out of her chest as she struggled against the snakes of metal.
"Calm down Starlight. This won't hurt a bit..." That smile replied, wider than ever and twice as unnerving. Twilight reached out with a pair of goggles, placing them over starlight's eyes.
The world....
Faded...
Into blackness.....

"Can you hear me starlight?"
"Twilight? Where...am I?"
"This is a virtual world I created for explaination purposes"
"And you couldn't just TELL me?"
"Ugh...don't be a bore...Nevermind, I'd better get on with the explaination!"
The world spun rapidly until Starlight's disembodied form was overlooking the city.
"H-how?"
"No questions!" Twilight's voice took on a sing song tone, which irritated Starlight to no degree.
This is the city of canterlot,Starlight thought. Why am I here? What exactly does this crazy scientist have to explain?

"Lots and lots of things Starlight, so quit your yapping and let me get on with it!"
can she hear my thoughts?
"Yep! so can you just not think for a bit while I start the explaination, your inner voice is as loud as blitz's, meaning you've got a very healthy ego. Also meaning : SHUT UP."
Starlight shut up.

"This...is Canterlot, the capital city of Equestria."
"Yeah no fucking shit sherlock, I knew that already." Starlight replied without thinking.
"Didn't I ask you to shut up?" Twilight's voice was even, but barely hiding the rage speckled through it. Sorry, it's just that I get really frustrated when someone interrupts me.
Starlight winced, this woman was less stable than the government in Yak-yakistan, it would be prudent not to enrage her.
"Anyway, as I was saying before someone interrupted me: with the power Canterlot holds as being the capital city of Equestria, comes a whole lot of trouble. Namely the Canterlot mafia and cartel, or the cmc- cute nickname, right? Diamond and Jay's li'l sisters came up with it."
"Diamond? Jay?"

"I'll explain who they are later m'kay? So, as I was saying, there are 5 pre-eminent members of the cmc, first up is Jay, her real name is Applejack, but what's the point of joining the mafia without making a codename for yourself right?"
Starlight would have gasped at the way the landscape melded and burned out, forging an all new world in which she observed a woman in a tavern of sorts, but she really was over Twilight's scientific BS at this point. The woman had light aprcot skin and honey coloured hair in a loose ponytail, with a cowboy hat on, Starlight assumed it was traditional, and to be fair she pulled it off well, but it was still an odd choice of clothing.
"Are you gonna listen or critique her fashion choices?" intoned Twilight flatly.
"Jay is flute's most trusted informant, after all, she runs the most popular bar in all of Canterlot, and you know how loose people's lips become after a few pints. She's pretty strong in battle cuz she has to deal with rowdy drunks all the time, so avoid conflict with her."
"Next uppppp..... "

The world spun again and it turned into a busy highway, packed full of impatiant cars sluggishly trudging along.
"See that skyscraper? "twilight asked.
Starlight nodded, it was hard not to see it, it was literally the centre of the mindscape.
The world zoomed in until Starlight was on the rooftop behind a cyan-skinned person with prismatic hair holding what looked like a rifle.
"Meet Blitz, aka Rainbow Dash! Of course you're not really meeting her, cuz this is a virtual world but still!"
"She's the cmc's best assassain!" Twilight's voice lowered to a conspiritorial whisper. "Rumor has it Jay and her are friends with benefits!" Starlight rolled her eyes, she really didnt care about mafia love lives, but this kind of informatio could save her someday....maybe?

"The next one's a doozy, lets see how you react, cuz this might be a bit of a surprise!"
For the third time reality formed a new place, this time the centre of canterlot square, where a pale woman with luscious purple hair and a dazzling embroidered dress posed for the papparazzi.a very familiar woman....
"RARITY?" Starlight exclaimed,"no way!"
"Good reaction." Twilight's triumphant tone echoed. "Damn, I should have got it on camera!"
"Yes, the famous Rarity, aka diamond, fashion icon and designer, actually is part of the mafia, Flute helped get her career off the ground, so diamond is indebted to her. Diamond uses her connections to get a lot of info on the upper crust, who have lot of money that we can extort!" Starlight shuddered, Rarity was famous, like really famous - one of the most well known people in Equestria, not just Canterlot. To think she had decieved the country was, frankly terrifying. But she had a feeling she was going to have to get used to that if she wanted to survive in this hellhole.

"Who next...lets see, Cannon and Shotgun!"
The mist Starlight was becoming so familiar with formed a casino, bold and unapologetic, brash lighting that said, "I will blind you and not pay for the medical bills, go fuck yourself! :) " Overall an atmosphere not unlike Starlights hometown.
"This is Canterlot Casino, the biggest casino in allllll of Equestria! The owner is, surprise,surprise, part of the cmc!" The view zoomed in to see a rosy-skinned woman with ecstatic, cheerful, bouncing curls.
"This is Cannon, she's the cmc's wallet, I'm not saying she rigs the games, but the house wins more often than not..."
"You said there were 2, wheres the other one? Shotgun?"
"you'll see..."
The woman suddenly started shivering and in a second her entire demeanor changed, the bubbly curls ironed out into limp tendrils and her excited cerulean eyes shifted to a dull, dark indigo.
"Fascinating isn't it? Pinkie has a rare condition called dissasociative identity disorder, her other personality is called pinkamena, or shotgun; she runs the Canterlot drug ring! It's a two in one offer, drugs and money!" She's honestly so fascinating, I'd love to experiment on her and see just how twisted her mind is! Unfortunately Flute won't let me..."

Starlight wasn't surprised at this point.

"Speaking of our glorious leader Flute, or Fluttershy- nobody calls her that though, at least nobody alive." Starlight was expecting to see a new landscape but instead was faced with an onyx abyss.
"Surprised? I think it'd be better if you met her in person. She will take advantage of everything you care about and use it for her own desires, it was her that recruited all of us- including me. She let me do whatever I wanted with the enemies she sent my way, granted me a lab and funds to continue my research, with the condition that I use my findings for her benefit. I am loyal to her only as long as the supplies continue, or until someone gives me a better deal, as is everyone else."

"Flute sent you to me, meaning she thinks you have some potential to be in the cmc. But now it's up to you, will you accept the chance for power and knowledge, or reject the person you have the potential to become."
2 buttons appeared in front of her- a classic RPG "Y/N". Starlight could have laughed at the illusion of choice created, she knew that if she refused, there was no way out other than in a body bag - possibly after being experimented on by Twilight, which she inferred wasn't exactly a pleasant experience.
She knew what she had to do. Slowly she reached out her hand to tap the "Y" ; a haziness overtook her buckling to her knees with a splitting headache she wrenched open her eyes to stare at Twilight, grinning as largely as ever.
"good choice!"

Author's Note

BRO this took like 3 days. it was pretty fun! i might continue if y'all want me to :pinkiecrazy:
also i got the idea from a vid on yt: https://www.youtube.com/watch?v=wESEbTmOlPM
but like i added starlight and stuff so ye. but creds to VildrArt. also this is my first fic so soz if it isnt that good :ajbemused:

the amazing and intelligent trixie

Sunset Shimmer walked through a shady alley, eyes forward - ignoring the usual etiquette of darting around like a maddened chipmunk. She knew these roads like the veins running through her body, and the residents of each and every one knew her, and wouldn't hesitate to put a bullet in her brain. After all, everyone knew that she was the most competent police officer in this side of Canterlot, the only one that had never made a deal or taken hush money. The only clean cop in the area. That just proved how shitty of a place this was.

Now wasn't, however, the time to rant about the seeping criminal underworld; Sunset had something more important to do. Even if it meant putting herself through misery. She had to find Trixie Lulamoon, the private investigator, said to work miracles (of course Trixie herself was the one who said that, but still.)
Sunset wanted to defeat the cmc, to disband them so...so that nobody had to...lose their friends anymore. Sunset kept walking, unflinching, through the body-littered streets emitting a pungency that would burn through the untrained nostril. Until she reached the door, it was like a sore thumb sticking out with its bright cornflour and lilac decor against the drab and grey surrounding buildings.

The door was answered in the most extravagant way possible, being flung open with far too much energy for a Thursday afternoon. Trixie, her light cornflour skin complimenting the new lilac highlights in her silvery blue hair.
"Yes, it is I, the amazing and intelligent Trixie!!!"
she drew the "i" in "Trixie" on for at least four syllables for added effect. Sunset could already feel the overbearing dread that this was a bad idea echoing her head.

"Um, hi? Uh, my name's detective Sunset shimmer- I'm with the police."
she silently cursed herself for being so flustered at the girl's energetic introduction, and pulled out her badge, showing it to the other girl as proof of her words.
Trixie let out the most melodramatic gasp Sunset had ever heard, like seriously, what was a clear drama kid like her doing as a detective?
"Trixie promises she's not doing anything lawbreakeringy! Don't arrest Trixie!"
She refers to herself in the third person, add that to the list of red flags. Honestly, this was a mistake, this kid probably doesn't even know how to tie her shoe-
"I'm sorry."
wait, what? Sorry for what? Sunset looked at the younger girl questioningly, expectingly. Thankfully she obliged with an answer.
"You carry yourself like somebody with an aim and a lot to lose, but you walked through that alley without a second glance either way, which means you don't care about your own life. Therefore Trixie thought you had already lost the person you're fighting for."
Sunset gaped. This girl might not be a fraud after all, she's... surprisingly...perceptive and observant.
" Whoa! Was Trixie right?"
Sunset couldn't help but smile at this kid, she really did have the potential to be amazing. Sunset paused in thought. Wait... where are her parents - she can't be older than 16?
"Trixie... where are your parents?" sunset whisper-spoke. Already knowing the answer but not wanting to believe it.
"They... they're not...here anymore." Trixie's triumphant tone turned to one of weakness, and worriedness.
"So are mine." Sunset didn't know why exactly she was telling this random kid something she hadn't disclosed to even her closest allies on the force.

Sunset ended up staying the night with Trixie, she had multiple spare rooms in what was almost definitely her parents house, and...well- Sunset didn't want to leave this kid after dredging up some bad memories. She knew Trixie could take care of herself, she had been for quite a while, from Sunset's deductions, at least 3 years. She knew that, it was just... I want to help her. In the guest room bed, Sunset drowned in an uneasy slumber, plagued by nightmares of her past. She saw the person who had betrayed her. Her indigo and purple hair, her pink highlights. The nerdy pair of black-rimmed glasses she was never without. Twilight Sparkle. She had taken everything from sunset. Good thing she was dead, but the...feeling of shooting her still remained to this day. The sickly sweet taste of revenge still fresh on her tongue after all these years.

As usual, Sunset woke up in a cold sweat. She woke up, and silently padded through the carpeted halls of the Lulamoon household. She peered through a crack in the door of the room Trixie was sleeping in, to smile softly at the sight of the girl looing so utterly at peace, thoroughly lost in her dreams. Sunset felt a pang of jealously at this girl for being able to rest so easily, a talent Sunset had lacked since childhood. She brewed herself a black coffee, the taste of misery that kept her going every day.
"Haa... what the heck am I gonna do now, I can't exactly leave her..."

Matter of fact, she didn't, and she never would.

Author's Note

soz its so short but like yh! now we got the main cast <3 i kinda rushed this a bit i did it in like an hour so likeeeee yh. also trixie and sunset sister dynmic???? hell fucking yeah!

After,like 1 year - Starlight

It had been like one year since Starlight had started working for Twilight. She was now thoroughly accustomed to the way Twilight worked. she knew just what to do in most situations. Except now. When Twilight burst into her room, a manic grin on her face, Starlight just knew shit was about to get real.
"STARLIGHT!!! ROAD TRIP!!!!!" Twilight exclaimed in the tone of someone trying to sell something shitty as good.
"Wha- where?" Starlight had long since learned not to question Twilight- she always made sense in a sick, twisted kind of way.
"We're going to blitz's place!"

Spike started growling.
"Whoa, is he ok?" Starlight knew spike was the most well trained dog she'd ever met, him growling without Twilight's orders to was drastically out of character.
"He's fine, right boy?" Twilight forced those words through her gritted teeth, only letting them escape for Starlight's benefit.
"Twilight. I know you're lying." Starlight deadpanned.
"Fine, you wanna know the truth?"
"If I didn't, would I ask??" Starlight rubbed the bridge of her nose in frustration.
"The sass, god if I didn't know better I'd think you were my boss!" Twilight smiled while speaking but Starlight heard the loosely veiled threat in her tone. She was curious, but valued her life more than this answer.
"Never mind, lets just go..." Starlight said in a resigned tone.

Twilight hummed in approval, then quickly scribbled down a note on a scrap of paper she pulled from her pocket, folded it up, and handed it to her. With a questioning glance, Starlight took the paper and began to unfold it before being abruptly stopped by a lilac hand waving aggressively.
"WHOA, what do you think you're doing???" Twilight interrupted her and refolded the paper hurriedly. "This is super top secret!"
Starlight shrugged. I probably wouldn't even wanna know, knowing Twilight...
"well, I've put the address on you're GPS, soooo.... have fun byeeeee!"Twilight rushed through the last few words and pushed Starlight out of the door.

Jeez, what the fuck is her problem? Starlight sighed, Twilight was the definition of an enigma, she'd probably never know anything about her. Not that she wanted to. Some mysteries were better left unsolved. Staring down at the directions given on her phone she was quick to mute the insistently screeching voice of the GPS, like seriously, you could make it at least a bit human, it wasn't that difficult. It was one of the things that ticked Starlight off, the others being: people who don't flush public toilets, people who push in queues, bats, cats, long division, short division, Pythagoras's theorem- basically a lot of stuff. Still in a bad mood from thinking about all of this, Starlight began the long drive to Cloudsdale, one of the sleaziest places outside of Canterlot, the only 'clouds' there were made of charring smog emitted by the mundane workers at the countless factories.

She soon arrived at her destination, the luxurious penthouse apartment of one 'rainbow dash'. She recognised the name from Twilight's initial introduction to the cmc, so tried to recall what that annoying mad scientist had said. ehh.... she's an assassin- wait, no she's the best assassin. anddd.... she's probably boning the bar chick! Still wary, as the information she had was...uninformative at best, shitty at worst.
Pressing the doorbell, Starlight waited with bated breath, this place was so contrasting to most houses in Canterlot- or Cloudsdale for that matter, far more luxurious than the hovel she herself had grown up in. I guess crime pays she thought to herself while mentally preparing for a brattish, snobby, psychopath. Boy was she in for a treat.

The door was yanked open, with much more force than necessary, Starlight could hear the hinges buckling and protesting to the fingerless-gloved hand resting on the handle.
"Who the fuck are you?" She drawled, staring at Starlight like she was more worthless than long divis- damn it glimmer, stop thinking about long division! She chastised herself in her mind.
"Uh... my name's Starlig-"
"I don't fucking care what your name is - just tell my why you're at my door before I shoot you!" The prismatic haired woman was beginning to get on Starlight's nerves, but Rainbow dash was armed- and Starlight wanted to survive this encounter.
"I was sent by Midnight." Starlight used her boss's code name as she choked the words through gritted teeth. This seemed to get a reaction from her, but certainly not a positive one, as she saw the careless features on the sky blue face shift to utter contempt. oh shit, what the fuck did Twilight do to her? Starlight questioned until her eyes travelled past the frown to Rainbow Dash's neck, a wicked scar of dark navy ran up it. Surely she didn't- Starlight tried to reassure herself until a harsh voice cut her thoughts like a hot cleaver in butter.
"Yeah, she did this. You've probably figured this out by now, but that woman is a fucking psycho."
"h-how?" Starlight regretted the words as soon as they left her lips, Damn it Glimmer, you're really fucked this time, she'll absolutely kill you- you probably wont even have a body left to bury...
"Chill. I ain't gonna hurt you. Knowing that sadistic bitch, she probably wants me to though."
Relief flooded Starlight and she was just happy she wasn't going to die. But she still had questions.
"How did that...happen?" she gestured to Rainbow's throat, hoping beyond hopes that she wouldn't be killed for insolence.
"It's...a long story, but if you really wanna know...you'd better come inside and sit down cuz i sure as fuck ain't explaining this shit at the door."
Starlight paused to consider this, if she did this she could die, but on the other hand, she might learn some lore about the walking enigma who called herself Twilight.

She walked in.

Author's Note

yes twi's nickname "rink" is based on twinkle sprinkle bc i love round trips vids on yt

she did WHAT???

Starlight followed the cyan-skinned woman into her apartment. It was huge, trophies everywhere, clothes and sports gear- but most of all: guns, guns plastered on every wall, Starlight would be scared, if Twilight's lab wasn't stained crimson from the multitude of torture devices canvassing the place. For the first time Starlight was glad to have a sadist as her boss, because when Rainbow looked at her, expecting a reaction, she got none. Ah, that face, the catharsis! Wait! shit-what am I thinking... ugh... I've been spending too much time with twilight. As Starlight and Rainbow walked through the vast apartment, she noticed a school photo hanging on the wall, likely from high school, it portrayed a lot of people starlight didn't recognise, save for Rainbow, until- Wait. Twilight? A-and there's the woman in the alley, Fluttershy... Observing closer revealed all of the people Twilight included in her cmc intro course.

"Yeah, we all went to school together, ha! Funny that we all ended up in the mafia...together.." Rainbow's light-heartedness faltered for a moment, as if remembering a past she'd rather leave behind.
"Well, you wanted to know about my scar, right?" the enthusiasm behind her words somehow seemed false, but Starlight wasn't in the position to probe her more than she already was.
"Ya wanna drink or something? You'll prolly need it." Starlight politely declined the offer, she wasn't about to get boozed up at an assassin's house. Rainbow grabbed a bottle and uncorked it deftly.
"Your loss." she shrugged and took a long swig from the bottle, wiping her mouth with her sleeve as she breathed out slowly- seemingly readying herself for the bad memories this would dredge up. Both of them sat down, Rainbow talking to the 18 year old with the tone a war vet would use talking about their time on the force.
"Here's how I broke Twilight Sparkle, and how she broke me in return."

"Me and Twi went to school together, the local public school, Canterlot High. I was the jock, she was the nerd, it was as you would expect: I picked on her. A lot." Rainbow proceeded to pull out an old album, titled, in a teenager's unruly scrawl: 'me n the egghead'

"This is a stupid album I kept of every time I tormented her- shit, I really was a fucking sadist back then, god."
Starlight grimaced. At least she was self aware...?
"So that's how we stayed, me and her: bully and victim...until one day I went too far."
Starlight waited with bated breath-if constant torment was normal, what would count as 'too far'?

"I killed her dog." Rainbow admitted.
"W-what?" Spike was alive, right? She'd seen him...
"Yeah, it was a dare...I fucking stabbed her dog to death. Well,that did it. She snapped."
Rightfully so, you murdered her pet! Starlight wished she was brave enough to say this, but she wasn't about to die being righteous for Twilights dog, no matter how cute he was.
"Soo... the next day, Twi reacts even less than usual to the bullying, just glaring like she was gonna burn me alive- newsflash: that's just what she did."
Starlight observed the scar discreetly, finding it indeed was a burn mark, one that ripped through her flesh with savage malice.

"I knew she was planning something, but I brushed it off cuz I had a big game coming up, like there were regional scouts for super prestigious schools I could get a sports scholarship to!"
Right. Could. Starlight had been wondering why a jock like her was in the mafia.
"Twi knew this was the break I'd been waiting for, that this would give me the opportunity to be someone in the world."
she took another long sip from the almost depleted bottle.
"So she ripped it away from me." Rainbow shifted her head slightly, so her multicoloured mess of hair trailed down like a waterfall." Midgame, she replaced the water in the cup a teammate was bringing me, with a diluted acid."
Starlight let out a gasp.
"T-that would have melted your throat...h-how are you alive?
"Cuz the guy bringing it to me tripped- it just got all over my neck."
"S-she really did that?"
"Well, Twilight never admitted to it, but I know it was her- who else woulda used nerd shit to kill me?"

The two sat in silence for a while, Starlight eventually getting up to leave. Rainbow let her go with the parting words:
"Careful kid, don't trust her- you'll end up deader that the corpses in her freezer."
Starlight turned to leave but paused, remembering the note Twilight had written for Rainbow. She fumbled in her pockets before finally fishing it out, passing it the the cyan-skinned woman, and leaving for the lab.

As Rainbow watched Twilight's latest victim ride off into the distance, she opened the scrap of paper and read the words impeccably written on it's crumpled surface:
Thanks for being a predictable buffoon Dash, you're always so reliable! :)
Rainbow crumpled the paper in her hands before grabbing another bottle from her freezer.
"Twilight fucking sparkle."