(A/N: I love Kristanna. I really do. However, I wanted to try something knew, and this seemed very interesting. I've read quite a few Elsanna fics already, and it was something I wanted to try. Oh, and just to let you know, this won't be a one-shot; I wanted to do something other than just one-shots, even though one-shots are what I specialize in, at least I think so. Don't take this whole incest idea too seriously – I'm doing it for the readers ;) – but if you absolutely despise this, I don't think it would be smart to read on. For the rest of you…enjoy, and tell me what you think! Warning: Incest)

Disclaimer: I do not own Disney's Frozen or anything affiliated with it. Can you imagine, though? That would be just wonderful. Disney, if you don't want it anymore, hit me up. I'm here all week.

Elsa had known her for 19 years now. She was one of those people who were immediately placed on the list of people she would take a bullet for. She loved her more then anything in the world.

But the love was becoming something more than just sisterly.

Honestly, if Elsa could control it, she would stop thinking immediately and ask herself a simple question: what the hell?

Unfortunately, she was not thinking.

Elsa couldn't believe it. Here she was, ruling the kingdom of Arendelle as the queen, striving to make it the most appealing domain in the land.

And she was falling for her younger sister.

She wasn't quite sure what caused it.

Perhaps it was the way Anna giggled when she was pleased, or the way she still gaped as she speechlessly watched Elsa conjure even the simplest statue out of ice. Maybe it was the way she crawled into Elsa's bed when she had nightmares, or maybe it was the way she gave Elsa long, warm hugs when she confessed having nightmares of her own.

Okay, so maybe she did know what caused it. Whatever.

The thing is, Elsa knew it was wrong, and although the idea seemed terrible, she had to stop thinking about her baby sister this way.

But she just couldn't.

Elsa loved Anna in a forbidden way. She knew that if anyone found out, she'd be looked down upon, seen as a disgrace and dishonor to her people, her family…to everyone.

Yet she had to tell someone. Someone who she trusted with her life. Someone who she'd, without a second glance, take a bullet for. Someone who she loved more than anything in the world.

Telling Anna would be hard, but she'd be the easiest person to tell nonetheless. Elsa convinced herself of this.

Still, as she slowly made her way towards her sister's room at midnight, Elsa shivered in fear. She never shivered.

She thought of all the horrible possible outcomes, and that if anyone else knew, word would be out in no time at all.

"I need to control myself," Elsa said to herself deliberately. "I have to handle the situation with care, and – oof!"

At that moment, Anna, who had peeked out of her bedroom door, and upon seeing Elsa, she had dashed towards her older sister and tackled her to the ground in a hug.

To describe Elsa as surprised would be a huge understatement.

"Hey, what the-" Elsa's annoyance disappeared immediately as she noticed Anna's tear-covered face. "Anna," she murmured gently, worry engulfing her. "What happened? Are you okay?"

Anna sniffled. "Elsa…I-I'm sorry, it's just that, well, I had a nightmare; Hans had caught up to you and as he raised up his sword, h-he…he, well, I couldn't stop him, and-"

"Anna, shh," Elsa whispered softly as she stroked her sister's cheek. "It's okay, Anna, it wasn't real; I'm still here."

Elsa was rubbing her sister's back when she suddenly realized her position.

Anna lay on top of her, freeing her eyes of tears. They were both sprawled out on the floor, and Elsa still had her hand on her sister's cheek.

Anna seemed to notice as well, and she quickly scrambled off. Elsa felt something; was it relief? Sadness? Disappointment?

Elsa was snapped out of her thoughts as Anna buried her face in her shoulder. "Can you…stay with me?" Anna pleaded, wiping the last of her tears from her eyes. "I-I'm sorry to keep you up, it's just that…I don't think I can handle being alone tonight…"

Elsa was more than happy to stay.

As Anna climbed into her bed, Elsa pulled aside a chair and was getting settled when –

"Elsa?"

"Hm?" Looking up, she noticed Anna patting the spot on her mattress next to her. "Please?"

The snow queen grew tense. Nodding reluctantly, she got up and made her way towards the bed.

Conceal, don't feel…conceal, don't feel…

As she climbed in, Anna pulled the covers over the two of them and they rested in a comfortable silence.

Elsa didn't know what her sister was thinking about, but her own thoughts were all over the place.

Should I tell her now? I might not get a better chance…but what will she do? How will she react? I can't risk everything for this…I'll just have to –

"Elsa? What's wrong?" the strawberry blonde murmured softly. Elsa snapped out of it. "W-what? Nothing's wrong. I'm fine," she said a little too quickly. Anna was unconvinced. "It's the way you fidget with your hands. You always do it when you're nervous."

Silence.

"Elsa…do you trust me?"

"Huh? Y-yes, of cou-"

"Do you remember your promise not to hide anything from me?"

There was another silence. Elsa knew where this was going.

Then… "Yes."

"So please, please, please tell me what's bothering you!" Anna begged her sister. "You helped me out – you're helping me out right now – and I want to return the favor."

Anna was relentless. Elsa took a deep breath.

"Anna…you know I love you right?"

The younger sister smiled widely. "Of course!" she piped. "You're the best, big sister ever."

Elsa bit back a smile. Lovely, but…that's not what I meant.

"Anna, please don't be alarmed by this next part…"

Anna nodded. "I'm here for you, remember?" she responded, offering her a small grin of encouragement.

It was a cute, friendly gesture that melted Elsa's heart. This gave her an opportunity to stare at Anna's lips; they had never looked so…tasty before.

Elsa, stop this. Stop it, stop it, stop…

But it was too late.

Anna was pushed up against the wall, and as she opened her mouth to protest, she felt a powerful pair of lips slam against her own. Her eyes widened and she stared into Elsa's closed eyelids, and at first she tried to fight back.

But Elsa was winning.

And soon enough, Anna's eyelids fluttered closed as moaned in submission.

Elsa, feeling the moan against her own lips, let out a wicked smile.

With that, she cupped Anna's face in her hands and kissed her harder and faster.

If Elsa had the mind to think, she would have noticed that, strangely enough, Anna was kissing her back.

However, Elsa wasn't thinking.

All her acts were based off of her impulse, and right now, all she wanted was Anna.

Sticking her tongue slowly into Anna's mouth, she began to thrust her hips against Anna's. Hearing a cute, soft whimper of surrender satisfied Elsa beyond belief. She thrust once more, and again she heard the nourishing sound of Anna's submission.

Elsa loved every moment. She loved kissing this girl, this beautiful baby sister of hers –

Baby sister.

Elsa, you are kissing your baby sister.

Elsa gasped as she pushed away from Anna, who was breathing hard as she leaned against the wall for support.

No, no, no, Elsa…what have you done…

Elsa stumbled backwards onto the ground. Lifting herself off quickly, she backed up against the doorway in fear of the way she had made her move on Anna and every moment after.

"No, oh, no, no, NO!" Elsa staggered. "Anna, I-I…"

She glanced around, gasping as she noticed the ice slowly creeping up the walls. She couldn't conceal it. Not the ice, or her feelings, or anything.

It was the one thing she had to do, and she had failed miserably.

Oh, no, oh…shit!"

Elsa fiddled with the doorknob until she turned it and bolted out the door, leaving Anna to wonder just what had happened.

Her mind was everywhere at once, but one question lingered in the air: does this mean…Elsa has feelings for me too?

(A/N: "Too"? Say what, girl?

Anyway, thanks for reading. I will continue this for it is not one of my usual oneshot-y stories. Please, tell me what you think. Favorites, follows, and reviews are appreciated, and don't worry; I won't discontinue the flow of Frozen one-shots. That is all; thank you, I will try to update whenever possible!)