I do not own Supergirl or any of its characters. If I did, there would most likely only be two characters, Alex and Kara.

Authors notes at the bottom.

The two had always done this. Even as children and even though Kara had her own room, she very much so preferred to sleep next to her big sister. And that's exactly how Alex knew they would be sleeping tonight.

"Alright. I think that it may or may not be time for a certain someone to go to sleep." Alex chuckled and effortlessly lifted Kara up off the couch. The first time she had down this, Kara had been shocked and Alex explained she worked out at a gym and so she was strong. However, in reality she was keeping a secrete from Kara. The DEO agents took a certain pill that made them almost twice as strong as they normally would be. It certainly didn't make her a strong as Supergirl here, but it made it easy for her to carry Kara.

What Alex had told Kara made enough sense to her, so she had learned to just let her big sister carry her to her room.

Alex and Kara both changed into pajamas, shorts and a t-shirt for Alex, fluffy pants and a tank top for Kara. The Danvers sisters got under Kara's over sized blanket and got comfy.

For Alex this was laying flat on her back with her fingers subconsciously playing in a certain little sisters blonde hair and her arms wrapped protectively around her. For Kara this was her head laying on Alex's chest, listening to her heart beat, and curled into her big sisters side.

The two girls had slept like this ever since Kara had arrived on earth nearly eleven years ago. The two young women waited patiently for sleep to overcome one another when something unexpected happened.

Alex's DEO watch communicator began to buzz on her wrist and she knew she had no choice but to answer. "Hello?"

"Agent Danvers," it was director henshaws voice, "I need you here. Now." And now, Alex was caught between a rock and a hard place. Kara was vulnerable to everything right now. Alex couldn't leave her home alone just incase something happened and Kara tried to go all Supergirl but she couldn't take her into her office either. If she did, her baby sister could get hurt too. And those were the images of her sisters he hated most. The ones were her indestructible baby sister lay limp and unmoving or her sweet little sister being held by her throat off the ground by a much for formidable opponent.

This didn't mean she didn't have faith in Kara but it did make her want to march right on down there in what Kara called, "big sister mode," and beat the crap out of anyone who meant to cause her baby sister harm. But Alex did know better considering the dangers to the city that Kara fought would easily crush her.

After a few brief seconds to compensate her choices, Alex told director Henshaw, "I'm on my way." And the second those words left her mouth, a very sad and agitated whine escaped the girl on her chest.

"Hey now, your coming with me miss Supergirl." Alex chided as Kara finally sat up off her, "get dressed."

The two quickly changed and Alex raced Kara out of the house with here. The entire trip had the older girl a nervous reck. She constantly had to watch out for any danger and had to move quickly so Kara wouldn't get sick. 'Is this how normal big sisters feel with there little sisters?' Alex thought to herself and internally groaned.

Why couldn't Kara just be okay and why couldn't director Henshaw leave her alone for once? She had told him she needed to take the next few days off, so why on earth was he calling her in at 9:49 pm?

When the sisters finally got to the DEO, Alex grew even more annoyed. Everything looked intact and no aliens were on the loose. Everything was in order! So what the heck was she doing here?

"Stay put." Alex glared pointedly to Kara when the two made it into the center of the DEO's main office. Kara put her hands up in mock defense and when Alex turned around, stuck her tongue out, mumbling, "brat." under her breath.

"Heard that!" Alex called back in defense, but without turning around. It wasn't long before the latter girl slipped out of view and into who-knows-where.

Kara blew a stream of air upwards in boredom, pushing a few stray pieces of hair out of her face. She leaned from one foot to the other. And back again. After a short while, Kara lost her patience and began to wonder around Alex'a familiar place of work. Little did she know, she was about to get lost.

There was a long dark tunnel and Kara found herself walking down it, turning wherever, and not really paying attention to where she was headed. All the younger Danvers sister knew was, she felt weird, was bored, and this was curing it.

Half a hour or so went by when Alex finally came back from wherever she had been called to. She chuckled at the almost stupid reason Henshaw called her down there. All wanted was to check on her and be sure she was okay and to inform her about everything she already knew could happen to Kara while her cells regained their energy.

But that smug little smirk was wiped clean off her face when she noticed Kara was missing. "Kara?" The older sister called out, but got no reply. "Hello? Where are you? Kara!?" Alex began to panic. Where had her baby sister one off to!?

Alex knew her sister well and the second she looked towards the black tunnel, she knew where she had gone. Her sister was ten thousand percent lost at this point. He had made Kara hold her cell phone and if she was lucky, the girl everyone saw as Supergirl still had it.

Alex had a lot of panic surging through her veins, but she wasn't the only one. Kara was beginning to get nervous and now that nervousness had grown into full blown fear. No one could seem to here her screaming out but she certainly was. "Alex! Alex, help me! I'm lost! ALEX!" Kara called out over and over but with no reply.

Eventually she just dropped to the floor, shaking from a growing sensation of cold and even though she hadn't realized it yet, fresh, warm tears began their descent down her cheeks and to her chin.

Kara buried her face in her knees but was giving a since of hope when Alex's phone began to buzz. She hurriedly answered and was over-joyed to head her big sisters voice flood her ears.

"Kara. Sweetheart. Tell me what's around you. I know you don't know where you are but what do you see or feel?" Alex was trying to sound as calm as she could. She knew her baby sister had wondered into the tunnel.

This tunnel, was filled with passageways and each one led to a different... Let's say problem to solve. Alex hoped she hadn't gotten into the hot one because her little sister would surely burn.

"I-I-it's c-c-c-cold-d-d-d. H-h-help-p-p-p m-me." Kara begged. Before dropping the phone from her shaking hands. Kara was vibrating and Alex found herself racing towards the path she had concluded her sister took. The below-zero freeze room.

Alex made sharp turns and her legs were moving so quickly she couldn't feel them touching the ground. A cold room didn't sound to bad but in reality it was for Kara. She could we pneumonia, or could quit literally freeze to death.

The walls in the room were unstable from the below zero temperatures, the darkness around Kara would make her succumb to the cold and fall asleep faster, and Kara had never been exposed to the Cold or its consistencies. The small not-so-super-Supergirl was in trouble and didn't even relies she was yet.

Alex found her sister curled up next to a cracking wall and all the creaking sounds were telling her to movie quick.

Kara saw her sister but was shaking to much to do anything but say through chattery teeth, "A-A-Alex."

"Shhh. Shhh. I know. Let's go sweetheart. Alex's here. Come on now honeybunch." Alex said scooping Kara up and beginning to run as fast as she could out of the troublesome tunnel.

After a few moments of racing around through the dark, the two sisters emerged from it. Alex was heaving slightly from running and Kara would be out cold if she wasn't so cold.

Kara was emotionally and physically drained. All she wants was to sleep in her normal ways, curled up in Alex's arms. Alex bud her farewells, didn't bother explaining what just happened, and quickly made her was home.

The latter girl was set down on the couch after her big sister had carried her home. Alex's quickly began searching the girl for any scratches, bruises, or anything really.

After finding nothing, Alex breathed a sigh of relief. Then inhaled deeply before blowing up at her baby sister.

"What the hell Kara? You could had been hurt. You could have gotten lost in there and died! Oh my gosh, Kara!" Alex sat down, cupping the now crying girls cheeks in her hands and began to cry herself. She was so scared for her baby sister. She couldn't bare the thought of her being hurt.

"I'm sorry!" Kara cried into her big sisters shoulder as she sat in her lap, afraid and comforted all at the same time.

"No. Shhh. Don't be. Just please don't ever scare me like that again. And don't think about ever going into that tunnel again either." Alex kissed Kara's forehead as the younger girl sat Back and let her big sister wipe the tears from her cheeks.

Alex hugged her little sister close to her once more before the two got up and back into Kara's bed. If the rest of the time Kara would be without her powers were anything like this, than the two Danvers sisters sure were in for it.

It wasn't even two seconds of Alex sitting down on Kara's bed did she find herself with a lap and armful of alien blonde girl. "Okay. Okay." Alex's said under a chuckle. 'Once a big sister, always a big sister. Once Kara's favorite, always Kara's favorite.' Alex thought as she smiled to herself yet again.

She would always pretend to get annoyed with Kara's antics, but she never would be. They would always be adorable to her and they would always make her smile. Alex knew for a fact she would always be wrapped around Kara's finger and would always be way over protective of her little sister. And she was okay with this. Alex kissed her sweet little Kara's head once more when she heard the soft snores and smiled.

Alex leaned over, shifting the sound sleeper of Kara over slightly in the process, to turn the light off.

"Mhmmmummh?" Kara mumbled incoherently. This girl slept like the dead but any, even the smallest movement of Alex, would always wake her up. Every. Single. Time.

"Shhhh. Go back to sleep." Alex chided slightly as Kara sat up to look at her big sister. She was meant with kind eyes and a slight smile. But that didn't stop her from pouting.

"I felt you moving." Kara's bottom lip pursed out as she put on her best sad puppy dog eyes. Alex felt her heart cringe slightly at the look she was getting and she sighed.

"I promised you I wasn't leaving. Now, let's go to sleep, okay?" Alex smiled gently to Kara and received a very big smile in return as the sisters began to resume their normal sleeping arrangements and sighed at the warmth of each other.

Nothing could ruin this moment except maybe... "ACHOO!"

Hahahahaha! Cliff hanger! But not really...

I hope you all enjoyed and I can't wait to write more.

Thanks to everyone who reads, favorites, follows, and reviews.

Also, please leave request for future moments you guys want to happen between Alex and Kara. But remember, this is NON-romantic so let's keep it sisterly, okay?

Alright so that's all for now and I'll update again soon. Peace, out!