A/N : Thank you for following, favouring and reviewing the story.

Whalegang34 - Thanks! I really like the episode with the Black Mercy, so I will try to come up with something related soon.

Alliedstasis - She will in this chapter.

TheSuperLizard - Thanks! These one shots are about them taking care of each other, so don't worry. Kara will be looking after her sister too.

Guest - Yes, they are the best!

Guest 2 - Thanks!

"Do you feel any better now?" Alex asked coming back into the room with a bottle of water.

"Yeah, a little bit." Kara replied weakly as Alex helped her get into a sitting position.

"You don't look so good." Alex said concerned, twisting off the cap and helping her sister take small sips.

"If these won't help much, we're going back to the DEO." Alex coaxed her to take her medicine.

"No. I'll be fine." Kara assured, her eyes already closed.

Alex frowned when she checked Kara's temperature a couple of hours later, noticing her fever bagan spiking again.

"Kara." She was aroused from her sleep by Alex shaking her shoulder gently.

Slowly opening her watery eyes, she saw her sister looking down at her with concern. She squeezed hey eyes as if facing a harsh light, pain in her head worse than before. She raised her hand, trying to shield her eyes.

"Kara." Alex took her hand away from her eyes and held it in her own. "I know you're miserable, but we need to get you up."

"Up?" Kara asked trying to comprehend what she was hearing.

"Yeah, Kar. We're going back to the DEO." Alex expained helping her sit up, hating the sound of her laboured breathing. The fact that Kara didn't try to argue was telling her that she wasn't exactly aware of her surroundings.

"We shouldn't have left in the first place." Alex muttered under her breath, hating seeing her sister so sick. She grabbed a pillow and slipped it behind her sister's back before rummaging through her closet and picking up something warm for Kara to wear.

Quickly getting back to her sister's side, she helped her change out of her sweat-soaked pajamas and put on comfortable sweatpants before pulling her old hoodie over her head.

"Okay, come on."

Arriving at the DEO facility, Alex was more than glad to see J'onn waiting for them once she pulled over. She glanced at Kara who seemed to be asleep, her head resting against the window. She unfastened Kara's seatbelt and got out of the vehicle before J'onn opened the door and scooped the girl up into his arms.

"Let's get her to the infirmary." J'onn said and as Alex nodded they made their way inside.

"J'onn, when-when did you get into my apartment?" Kara asked when she woke up in his arms.

"You are at the DEO, Kara." J'onn informed her, gently putting her in her sunbed.

"Oh." Kara looked around, trying to recall what happened.

"Don't worry, your sister will be right back." J'onn assured trying to comfort her.

"Is that woman still in here?" Kara asked when she remembered pulling her out of the lake.

"She's still here." J'onn confirmed and when Kara started coughing again she added. "And she's definitely doing better than you are right now."

"But we will make sure you recover as well." Alex promised walking back into the room with a portable x-ray.

"What do you think is wrong with her?" J'onn whispered to the Alex, concerned.

"My guess is pneumonia. Her immune system without her powers is basically non-existent." Alex explained hooking Kara to the machines monitoring her vitals before hooking her up to IV that would pump antibiotics directly into her veins and hopefully fight off the infection.

"We should've stayed at the DEO." Alex told J'onn, looking at her sister who was watching her with glassy eyes.

"You're here now. There is no point in blaming yourself." J'onn put a consoling hand on her shoulder before leaving the sisters alone.

"We'll gonna make you all better." Alex promised tucking her hair behind her ear.

"I know." Kara smiled leaning into the touch.

TBC

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