A/N: After spending some time surfing the internet, I was sad that MikoKuro didn't have enough love and being a fangirl myself, I decided to write something for my current favorite couple. And wala~ I wrote this.

However, I don't know how many parts this will have or the time I'll post the next part. Don't worry, it won't be long... if I try...

Warning: slight OOC-ness and curses.

Please, R&R.

A certain Railgun's Love Confession

By: Infinite Fate

Part 1

Some days ago.

Misaka Mikoto the Railgun. The 3rd ranked Level Five and the strongest electromaster in Academy city… was in deep trouble and how she got herself into this hole was beyond her mind. She didn't know when she started to feel 'something' for her roommate, namely Shirai Kuroko. At first, it was just a small spark of interest as the latter was very different from her other admirers. Then, before she could even know, it had turned into a burning flame of care and… special feelings. Mikoto began to take notice of everything about the teleporter. The way she frowned when the situation became grim and dangerous, or the sound of her laughter and giggle,… even the said girl's usual hentai antics would be considered cute. And when the brunette went to sleep, she couldn't even get the girl out of her mind. Shirai Kuroko's images had stuck inside her head for 'god-knows-when' and there was no way to erase them!

Her instincts kept throwing several warnings but all was in vain. In the end, she came to a realization.

"This is ridiculous! It's Kuroko for god's sake!"

She, Misaka Mikoto, liked Shirai Kuroko….

"But she's just so cute~ Aishh, what the hell am I thinking!?"

God damn it! She wasn't in love with Kuroko!

"Seriously Biri-chan, stop hesitating and confess your love to her already."

"Agree."

Those voices belonged to Kamijou Touma, the Imagine Breaker, and Accelerator, the strongest esper in the city. The two were sitting opposite to her in a small coffee called Joseph's, having had lunch already. Normally, Misaka Mikoto would have freaked out, but after being forced to spend some time with each other by Last Order and Index, the three of them had finally reached an understatement. Mikoto got to know the true person of Accelerator and actually behaved normal to him, while the guy still could be kind of awkward during the talk. Surprisingly, he was better than she had thought. A much better guy than a certain spiky-haired troublemaker.

Touma was totally fine with this although he was slightly uncomfortable at first. Well, to tell the truth, it was his plan anyway. (She doubted it)

"What do you mean!? I don't like Kuroko!"

"I never said it was Shirai-san." The smug smile on his mouth irked her… a lot. "But really, you need to straighten this out."

"Shit, how many times do I need to tell you I don't like her!"

"You do know you've been murmuring and saying many things about her ever since the beginning, right?"

"I-…" She stuttered, not even finding a flaw in his words.

"Not to mention your love-struck antics whenever we talk about her." He continued his speech "You really like Shirai-san, don't you? But, you're hesitated and scared."

What he said was right, Mikoto couldn't deny that fact. To tell the truth, she was afraid. This feeling was just too new and strange for her to fully understand. She never had this before. The word 'love' was alien and she didn't know how to express it. It was like trying to change your habit when it had become a part of your life. In the end, Misaka Mikoto just was a young girl who lived in the pink world of stuffed toys although she had overcome a lot of bad things. And there was one more thing, her love interest. That person was her best friend!

For years, Mikoto had been very lonely due to her abilities. Everyone looked up and admired her as if she were a goddess. They never even tried to find out her true person, the reckless, childish and bad-tempered Mikoto; they only saw her the perfect Railgun, not Misaka Mikoto. Until that auburn-haired girl used her stupid antics to open her heart. Ever since then, she had met many new people, whom she gladly called her friends and depended on. Without Kuroko, Misaka Mikoto was still a loner.

She was afraid of breaking their friendship.

And no, she wasn't disgusted by the idea of two girls getting into a relationship. She knew she hadn't cared about people's thoughts when she finally realized her love for that idiot of a kouhai.

"That…" She released a helpless sigh, using both of her palms to cover her face. "As if it were easy to confess your love to someone you had believed to be your best friend… I don't want to end our friendship like this…" Even though Kuroko always said she liked Mikoto; sadly, the brunette didn't believe it. Those words might be just the way she showed her affection to the older girl, as friends and her senpai.

"And you said I was an idiot." Touma crossed his arms "Mikoto…" He called her name, making the brunette flinch right away at the seriousness in his voice "You never notice it…" The way she looks at you.

"What?"

"It's very painful, isn't it?" Normally, Accelerator would keep silence during the conversation but he decided it was enough. "The feeling of wanting to love and to be loved…" His usual scowl turned into a small frown. Memories replayed in his mind like a movie, the memories of a bitter child.

"Accel…"

"You're even denser than this guy." He pointed to the black-haired boy.

"Hey!"

"Friendship can be broken. However, a new bond will be established on that broken relationship."

"…." Both Touma and Mikoto now looked at him weirdly.

"?" He raised an eyebrow while scowling a little. "What the fuck with those faces?"

"I never thought you could be this soft." A grin formed on the tallest one's lips. "You were a different person when we first met."

"Go to hell, Kamijou." Accelerator grimaced while mumbling something like 'Yomikawa and her stupid way of talking…'.

"Anyway… You should tell her or it'll be too late" Imagine Breaker smirked "I heard there were a lot of guys taking interest in her. After all, Shirai-san is pretty cute…"

"May be you're right…" The brunette sighed "Wait a minute…" Electricity started to appear around her forehead, creating 'biribiri' sounds every time it sparked. "Did you…happen to check out Kuroko?" Mikoto growled as her expression darkened at the very idea of some guy checking out her love interest.

"Wait, this is a mistake!"

A few minutes later.

"Honestly, you need to control your anger better. Those lights do cost a lot and my allowance is limited." Looking at his wallet in tears as he thought of a certain nun-in-training's 'special diet', Touma hopelessly sighed.

"How funny." Mikoto raised an eyebrow "If I remember correctly, I was the one who paid for those broken lights, not you!"

"Ahahaha…"

"Tsk." The only quiet one made an annoyed sound at their action. "So… are you going to confess or not?" Asked Accelerator.

"God, you're the last person I want to hear that from, Accel." She hugged her head. "There are a lot of difficulties when it comes to romance and confession… I mean…"

"Biri-chan…" Said the black-eyed boy slowly, finally realizing something. "You… don't know how to confess?" The blush on her face was enough to confirm his thought. "Really?"

"If you want to laugh, just do it anyway!" Embarrassed, she slammed her hands on the table, drawing people's attention to their place. Fortunately, Accelerator's murderous look had successfully made them turn their heads away.

"No… It's just weird for someone like you not to have any sorts of relationship once with those fans and suitors after you." Touma tried to explain, sweating comically. Or because you're so obsessed with that Gekota frog and Shirai.

"Don't talk like you ever had a proper date before, Touma-kun. You are no better than me, even when you've already had a girlfriend."

Touma waved his hands while laughing weakly "It's just a matter of time." He, of course, received a 'are-you-kidding-me?' glances from the others "Oy, don't look at me like that okay. I mean… I can be kind of slow in this aspect but I'm not that dense! So let Touma-kun show you how to make Shirai-san swoon over you all the time."

"Says the guy who always makes mistakes on his dates." Mikoto then turned to the white-haired boy who was enjoying drinking his coffee "Since when he became a love expert?" The brunette couldn't help but think Touma's ideas of dating came from a certain stupid blue-haired friend of him.

"No idea."

"Oy, at least I succeeded in asking Index to be my girlfriend." He pointed out. Then, a wicked grin suddenly appeared on his face. "How about…." At that very sight, Mikoto suddenly had the urge to stop whatever he was going to say.

"Why do I have a bad feeling about this…?" Thinking back again, she should never have let WORST and Touma meet as her youngest (chronically) sister had, basically, ruined his mind… forever.

Present.

At the 177th branch's office of Judgment

"Ouch!"

"Honestly, what am I going to do with you, Shirai-san." Sighing, Uiharu finally finished bandaging her friend and partner, Shirai Kuroko. "You should be more careful. You're getting many injures these days."

"It couldn't be helped." Said Kuroko as she wore her shirt, slightly frowning in the progress. "Those thugs are becoming hard to deal with, especially when they have the Capacity Down to fight back Espers like us."

Glancing from her friend to her wounds, the black-haired girl shook her head and whispered lowly "You can't keep doing this to yourself, Shirai-san. Misaka-san will know."

Misaka. Misaka Mikoto.

Onee-sama.

Only Uiharu and she knew the truth behind her constant injures recently. Because of… what was it called? Heart-breaking sight? Right, because that very heart-breaking sight had burnt down everything.

Onee-sama and that Kamijou guy. Laughing and Smiling.

"Don't worry…" She found her voice being duller than ever "Onee-sama will never find out. She's pretty dense after all." Kuroko chuckled bitterly. Of course onee-sama was dense, she didn't know anything.

The pained look whenever Shirai Kuroko faked her perverted antics.

The longing Shirai Kuroko had inside her clear ruby eyes.

Or the love that sparked in Shirai Kuroko's heart every time she said 'I like you, onee-sama'.

Misaka Mikoto didn't know that before meeting her, Shirai Kuroko never took notice of anyone.

She didn't know, although the younger girl always acted so playful all the time, the pains she had to endure was so drastic.

Onee-sama didn't and would never know… how much tears the almighty Kuroko had shed for those feelings.

Pathetic…

Her world always revolved around Misaka Mikoto and she was tired of it, tired of being hurt by this unrequited love.

She should have hated the very person who brought her such grief. Instead, she fell even deeper for Misaka Mikoto. In the end, Onee-sama would continue to chase after that guy, without looking back at the one who had always followed her every step. Shirai Kuroko.

Foolish.

"Shirai-san…"

"I'm sorry… I lost in my thought."

"That's not what I'm talking about."

"Huh?"

Seeing her friend's strange behaviors, Kuroko turned back, only to meet a pair of chestnut brown eyes.

"Onee-sama?"

The older girl was standing there; her expression was a mix of happiness and calmness, totally looking out of character for someone like her. She was wearing her Tokiwadai winter uniform, but with a tie rather than a usual red bow. A small smile could be seen on her lips.

Kuroko quickly hid her pains under the smiling mask she always wore and threw herself at Mikoto, hugging the girl tightly. "You must miss Kuroko so much to come here. Ah~ Kuroko~ Kuroko's so happy right now." The girl said in a perverted voice, trying to feel more of her onee-sama's warmth, which would eventually faded when Mikoto pushed her away. She just wanted this moment to be longer, to actually be at ease after several times of getting herself killed by acting so recklessly.

But even a few minutes later, the older one hadn't let her go yet and surprisingly, the embrace was slowly being tightened.

What is onee-sama doing? Shouldn't she shock me now? She thought.

"M-May be…" Was Mikoto's answer. Kuroko couldn't help but look up and found herself looking at a blushing yet smiling onee-sama.

"Onee-sama…?" Her own voice sounded strange.

"I miss you." There… Shirai Kuroko went to a blank state after hearing those words. What did onee-sama just say? Onee-sama missed her?

You must be kidding me, God…

"Kuroko?" Misaka worriedly waved her hands at a still staring Kuroko, slightly shaking her body until the said girl regained her attention. Faster than anyone could react, the younger girl's face started to appear several shades of red, making she look completely different from her usual facade. It was… adorable…

"Onee-sama, what are you saying!?" The shorter girl blurted out while turning her head away.

"Eh?" Now, it was Mikoto who got confused. The Kuroko she knew should have jumped at her and did some crazy, hentai actions or at least declared her ever-lasting love to the brunette. However, she hadn't expected to get a blushing Kuroko instead. Lips formed into a smirk, Mikoto decided to tease the girl a little more. After all, it was not everyday you could see such a cute Kuroko like this. "I said I missed you, Kuroko~ And…" She leaned close to her kouhai "Don't you miss me?"

"W-Wha…!" Kuroko's face continued to become redder and redder. "I-I… Onee-sama!" She stuttered.

"Hm? What is it?"

"I-I… I miss you… too." The auburn-haired girl buried her face in Misaka's chest, slightly gripping the said person's winter jacket in the progress. Her words came out in a shy and timid voice. And the one also known as Railgun had to restrain herself from squealing right there.

"But…" Kuroko gently pushed her away. "What are you doing here, onee-sama?"

"Can't I be here?"

"No… I mean, of course not. Still, it's rarely for you to come here at such time."

You have no idea about this. The corner of Mikoto's mouth twitched.

"Ah… It's just… You're so busy these days… You know…" Awkward chuckles escaped her throat "I want to ask if you're free now… May be we can go and… I don't know? Watch some movies together or have crepes in the park like we used to do…"

God! What the hell with those crappy sentences!?

"That would be great! All of us can do things like before!" Uiharu, who had been quiet for a while, slapped her hands together as she smiled innocently "I will call Saten-san!"

"…" To tell the truth, Mikoto couldn't help but feel like being trolled by Uiharu. It was supposed to be a date, not a 'friendly' gathering for god's sake!

You're evil, Uiharu-san.

Sighing, she turned back and found herself being stared at by a certain teleporter. The younger girl was holding such alien expressions on her face. Even though she masked them away, Mikoto could still see through it. Those ruby eyes of her shone with unknown emotions, but the taller one wasn't too dense to not notice the sadness in them. Biting her lips, the electro master brought one of hands to the girl in question's cheek, stroking it in tenderness, much to her beloved's surprise.

"Stop frowning."

"…." Not bothering to reply, Kuroko just leaned into her palm, closing her eyes and enjoyed the warmth of it.

Seeing this, a smile tugged Mikoto's lips as she held the girl in her arm. Had her Kuroko been this shy before? She was so cu-…! Wait a minute… Her Kuroko?

Tsk… Touma is a bad influence. Somewhere else, a certain Imagine Breaker sneezed.

Minutes passed, she didn't know how long they had been like this, she just wanted to hug the one she loved and felt more of Kuroko's temperature as it had been days since the last time the younger girl hugged her (or in Kuroko's view, doing perverted things). Kuroko had a very special scent of flowers… It was comfortable, indeed and Mikoto was losing herself in that wonderful scent. However, slowly… she started to realize one thing.

She dropped her hand and Kuroko immediately snapped her eyes open. The latter was greeted by a worried yet somewhat angry-looking onee-sama. Awkwardness filled her mind as she didn't know the reason of Mikoto's sudden change of mood. Before she could even ask, the brunette had caught her left wrist with her right hand and said in a deep tone.

"You're injured."

Kuroko felt as if she, herself, was a thief caught by a police right at the crime scene. Sweats started to trail down her cheek as she slightly widened her eyes and looked away in fear of staring at those chestnut brown orbs she had come to love so much.

"I'm sorry…" The sentence left her mouth without her knowing "I'll be more careful…" To not bother you with my wounds…

Tears threatened to fall as Kuroko waited for Mikoto's answer. She could be strong and determined outside but when it concerned her onee-sama, the auburn-haired just couldn't keep that fearless mask anymore.

However, there was no blames or even words from the latter, only the sounds of Uiharu speaking to Saten on the phone remained in the room. Then, a hand placed on her head, patting her in a tender manner.

"Idiot… Try to not get yourself hurt like this next time, alright?" Mikoto comforted her, tucking some strands of her auburn hair behind the ear. "I don't want to see you in pain…"

Thud!

The teleporter's heart missed a few beats with her beloved's caring tone. Had onee-sama always been this gentle? She didn't know…

Why are you being so nice to me, onee-sama? Do you know the more you do it, the harder I can let you go…? So please… stop it… The younger girl silently prayed in her mind, not noticing the loving look Misaka was giving her.

"Saten-san said she was coming!" Uiharu's happy voice broke their thoughts.

The two then blushed when they realized the distance between them had, somehow, creased to almost nothing. Kuroko could feel Mikoto's hot and steady breaths on her face, while Mikoto had already frozen right on the spot.

If I lean in, I can kiss her right away. Clearly, the electromaster had gotten to the dark side after spending too much time with a certain spiky-haired boy (Touma: Oy, it's not my fault, okay!)

Onee-sama… To close! Inside, Shirai Kuroko was screaming. She might have acted like she wanted to molest onee-sama all the time but in fact; Kuroko was just a young girl in love. And of course, she found that being close and getting a kiss from Mikoto was… embarrassing.

"Ku-…!"

Pop!

And Mikoto disappeared.

Did I just….

"teleport Misaka-san away…?" Her friend finished the whole sentence.

"…"