This is my first SnK fic so go easy on me please :3

I am simply a fangirl who squeals for Mikasa, I don't really care who she is paired with as long as the guy is good looking ;3 But my OTP is ErenXMikasa after all

This is a shameful confession but I actually have an incest fetish so I really love how Eren and Mikasa looking all brother-sister-like XD

Disclaimer: I don't own Shingeki no Kyojin

The little girl looked at how the little boy tried his hardest to draw the apple on the table.

Their mother was washing dishes while their father was reading morning newspaper. None of their parents really paid attention to them at the moment.

She went to the little boy's side and looked closely at the picture he drew. It was childish. But it was natural since they were children.

Sensing her curiosity, the boy offered her one of his crayons. She took the blue crayon and started drawing on the paper. The boy laughed at her. For apple was red and not blue.

It was not like she didn't know. But the red crayon was still in his hand so she had to choose another color.

When the drawing was finished, the boy stared in awe.

"Wow, Mikasa, you're good at this! Are you a genius? Teach me how to do it!"

She didn't notice she had used other crayons to beautify her drawing as well.

Their parents had taken notice and started praising her, saying she might have talent as an artist.

A small smile made its way to her lips.

"I'll teach you how to do it, Eren."

Eren ran.

Today, he was sure that he would beat Mikasa's record.

"Who's that? He's running like a cheetah."

Eren finished his lap in 47:17 seconds and fist-pumped as he had already beaten Mikasa's former record, which was 47:19 seconds.

"You don't know him? He's Eren Jaeger from class 1-04."

He smiled cockily at the black-haired girl who had been watching him carefully from the start. Her face didn't show much expression when facing the cocky smile of Eren. And slowly, she went to the start line.

"Oh, I remember now! That Eren Jaeger, right?"

With a loud shot, Mikasa started running.

"Yeah, that one…"

The speed she managed was not that of a normal human. Eren's eyes slowly widened at how much faster she was today than before. In no time, his eyes found Mikasa at the finish line, all calm and barely sweating. That time, Eren found himself glaring at that foster sister of his.

"…the guy who always competes with his sister, right?"

My Genius Sister

By: lil'chrome-chan

Chapter 1. Genius Mind, Genius Talk

"That's awesome, Mikasa! I mean, 40 seconds for one lap? That's cool!"

Armin had been showering Mikasa with praises on their way back to class. Eren was clearly unhappy about it, and his insensitive blond best friend kept on rubbing salt on his wound. Nevertheless, he decided to shut up while trying to calm his supposedly anger. He was foolish to think that he could beat Mikasa today.

"Eren? Why are you being quiet? Are you not feeling well?" Mikasa asked with a slightly concerned expression.

Huffing, Eren answered the girl with an unhappy tone, "I'm fine. Stop treating me like a little kid, Mikasa! This is what I hate about you."

Looking a little hurt, Mikasa lowered her head and muttered a "Sorry…"

Suddenly feeling guilty, Eren scratched the back of his head and hesitanly patted the black-haired girl's head. "Don't make that face, that's so not you."

Mikasa nodded and shifted her expression to her usual stoic one.

A built blond slammed the whiteboard.

"Listen guys! Culture festival is near. Do any of you have suggestions for what our class should do?"

Reiner Braun, the class representative, suddenly declared.

Beside him was a very tall brunette with tanned skin, Bertholdt Fubar, who was smiling nervously at his friend's enthusiasm like always. And the other person in front of the class besides those two was Annie Leonhardt, a petite blonde who was the second smallest girl in the class, who seemingly had been forcefully dragged by Reiner to participate more in class activity. Annie had her usual unpleasant and scary expression on her face as Reiner kept pulling her to stand in the middle.

At a certain side of the class, Sasha Brauss, the brunette glutton, and Connie Springer, the bald moron, were busy talking about how it'd be good if they could do a takoyaki stand. But the class would surely go against it or they're sure Sasha would eat everything and leave nothing for the customers.

At the other side of the class, Ymir was talking to Christa Renz about how she wanted to see the blonde dressed as a maid. But then again, she didn't want anyone else to stare at her little girl so she didn't suggest on maid café after all.

Jean Kirschtein happened to listen to the girls' conversation and had started imagining Mikasa in maid outfit.

"O-oi, Mikasa."

The silent girl turned to look at him.

"H-how do you think about maid café? Wouldn't you like to dress as a maid once?"

Mikasa looked at the side and started pondering.

"Ah… I'd like to see Eren in maid outfit."

"Huh!? What the hell do you think you're saying, Mikasa!?" Eren quickly shot a retort.

"Yeah! Who'd want to see this monkey in maid outfit!?" Jean frantically added.

In a matter of second, Eren flashed a glare at Jean. "Huh? Who're you calling a monkey, you chimpanzee?"

Jean fearlessly glared back at the shorter boy, a vein in his face throbbed fiercely.

It'd become a glaring competition if only Mikasa didn't stand up from her seat and separate the two.

"Fighting is not allowed."

"…."

Jean was completely tamed by Mikasa but Eren glared at her.

"Come on! Think of something to do for the festival! Someone? Anyone!?"

Reiner had started shouting in front of the class while Bertholdt tried to calm him down and Annie, obviously ignoring them, had started reading a book while sitting on the teacher's chair.

"Takoyaki stand!" by Sasha.

"Drama!" by Connie.

"Okonomiyaki stand!" by Sasha again.

"Maid café!" by Jean.

"Choco-banana stand!" by Sasha again.

"Haunted house!" by Ymir.

"Steamed potato stand!" by Sasha, yet again.

"Fortune-telling!" by Christa.

The sudden flood of opinions confused Reiner and he decided to consider them one by one. He glanced at the short girl at the teacher's table and smiled cockily afterward.

"Let's go with maid café, then."

"Please add steamed potato to the menu!" Sasha demanded.

"Add whatever you want to the menu, Potato Girl!" Reiner shouted.

"Yosha!"

"Wait for a moment there, Reiner. Maid café? I'm not participating." Annie, who had stopped reading book, walked toward the built blond with unpleasant expression.

"Why not, Annie? With your small body, you'll look cute in maid outfit, I'm sure!"

"Is that so? Then, I'll have you fulfill one condition."

"What is it?" Reiner smiled.

The blonde turned to face the whole class and said, "Every single guy present in this classroom must wear either the so-called maid outfit or a mascot costume."

The whole class gasped.

"Wait—What!? Annie, are you serious!?"

Annie turned back to Reiner.

"It's unfair for girls to be the only ones humiliated. Or are you unsatisfied with it? Then we can call this off and think of another thing to do for the festival."

Reiner blinked. This girl had totally outsmarted him in this situation. And this was supposed to be a punishment-game-like thing for her at first. Now it ended up like this. Damn, what should he do? Should he change his decision?

"What are you doing, Reiner? Are you going to willingly humiliate yourself!?" Eren shouted from the back.

"The pride of every single guy in this class is in your hand, Reiner!" Jean added.

"Dude, if I dress as a maid in this festival, I'm going to seal off all the evidence so that my future grandchildren won't find and ask me about it!" Connie commented.

In a blink of an eye, the class started a riot.

But it didn't last long. As Mikasa stood up and slammed the table, hard, almost splitting in in halves. With that, the class went silent.

Mikasa spoke up, "Let's go with maid café. Guys, this is not about humiliating yourself or anything. This is about enjoying our youth. High school life isn't that long and culture festival is only held once a year. Be shameless now and it'll be a memory you will talk and laugh about in your adulthood. Something you'll never forget for the rest of your life. Something that will only happen… in high school. This kind of chance, you will never have it anymore."

After Mikasa's speech, the silence broke into a crying session.

"She's right! How could we forget this?"

"I'm sure this is gonna be a great topic to talk about in our school reunion ten years later!"

"I'm fine with whatever Mikasa decides!"

"Mikasa went as far as giving a speech. How bad could this be?"

Everyone seemed to have agreed with Annie's condition. But the blonde herself didn't understand why Mikasa would help her while they never got along at all.

The only person who knew Mikasa's true intention was probably Eren alone.

"It's clearly written in your eyes that you simply want to see me in maid outfit!" he shouted.

Mikasa tucked her red scarf, hiding her blush.

"At least tell me I'm wrong!"

Eren and Reiner walked down the stairs, carrying carton boxes of equipment for the maid café.

"Thanks Eren, I didn't think you'd volunteer yourself to be a committee."

"No problem, Reiner. I have plenty of free time."

Reiner chuckled.

"Anyway, didn't Mikasa want to participate, too? Why didn't you let her?"

"That girl, she always thinks I can't do anything without her. It pisses me off. And she's got work anyway. She's already tired everytime she got home I don't want her to take any unnecessary additional work."

"What? She works? Did the school give permission?"

"Yeah, sort of. It's only part-time anyway."

"Mikasa's great, too great."

"Yeah…" Eren's eyes turned darker.

Again.

Someone was praising Mikasa in front of him again. He didn't like the feeling. No matter how hard he tried, he could never beat her. Every subject he learned and tried to learn, Mikasa would immediately chase up as soon as she began. And she would be the one to teach it to him in the end. He was sick of it all.

It was unfair.

"Must be nice to have a sis like her, eh?" Reiner slapped Eren's back a couple of time.

Eren smiled bitterly.

"You think so?"

"Of course! If I have a sis like her, I'll brag to everyone about it!"

"Brag, huh? What's the point in having a sister who never needs your help?"

Reiner tilted his head and cocked a brow, "So… basically, you want her to rely on you?"

"H, huh!? How the hell did you come up with that assumption? I just don't like how she's better than me, that's all!"

"Hmm? That so? I see, I see…"

Eren walked faster and left Reiner behind.

"I'm home."

"Welcome home, Eren."

Eren could hear Mikasa's voice from the main room. He could smell food, but couldn't really identify what food it was. When he arrived to the main room, he could see Mikasa in apron. She was cooking something, it seemed.

"Geh! You're cooking!?"

"Um. I was thinking that I lack cooking skill so I need practice. I can't possibly let you eat foods from outside every day, it's unhealthy."

"Well, your cooking doesn't look healthy!"

"I'm confident I'm getting better today."

"You better be."

Cooking was the one of the few things Mikasa never managed to master despite being a genius. The other was sewing, which was why Eren came to a conclusion that Mikasa didn't have what it was to be a family-oriented girl.

The food was done, and it was curry.

Eren tasted it and true, it was far better than the last time she had cooked.

"How is it?" Mikasa asked.

"It's good."

But for some reason, Eren lost his appetite.

For this marked the beginning of another winning contest for Mikasa. Slowly, she would be genius in cooking as well as sewing. She would be good at everything that Eren would only feel even more useless by then.

Putting his spoon beside his plate, Eren pondered.

Why do you have to be a genius, Mikasa?

I am going to make this a multi-chaptered fic depending on the amount of reviews. If this story is not well-liked I will have to dispose of it so please tell me what you think ;3