Hello everyone! It's been a couple of days since I posted but I had finals then school ended and I was super busy with family and stuff so here's a new chapter!

I will hopefully be uploading a chapter daily or at least several times per week:)

Danversistersfan and Lala1010 The following chapter(s) are going to be based on the prompts you suggested, combined. Hope you like it!

"Kara come on were going to be late!" Alex shouted as she banged on the bathroom door.

The door opened and Kara stepped out already in her work clothes. She glared at Alex

"I was in there for 5 minutes only." she huffed.

Alex smirked then closed the door while Kara started breakfast.

10 minutes later they were in Alex's car and heading towards the DEO.

"Turn on the radio." Kara told Alex.

"No. If I turn it on you're going to sing. And I do not feel like hearing you sing even though I love your voice."

Kara sighed "But it's boring here. I could've flown us there!"

Alex smiled "Don't be such a whiner Kara."

Kara narrowed her eyes at Alex "Don't call me a whiner, doofus."

Alex too narrowed her eyes "If I'm a doofus you're an idiot."

"Moron!"

"Clown."

"Imbecile!"

"ALEX KARA THAT'S ENOUGH!" J'onn's voice boomed suddenly.

Alex and Kara froze, whatever insult coming out of their mouth faltered and they looked out of the car window to find that they had arrived at the DEO and half of the agents were staring at them.

They both cast sheepish looks at J'onn

"Sorry." they said in unison.

"Return to your work stations." J'onn ordered the shocked agents. They complied, half of them failing to hide their smiles and laughs.

Alex and Kara got out of the car and hugged each other then followed J'onn to the control room.

"So what's the situation?" Alex asked him.

"One of Dr. Tryom's articraft inventions went haywire. It appears to have created some sort of mutation." he said, showing them the pictures of a huge green monsterous thing wrecking a lab.

"So what are we supposed to do?" Alex asked.

"Detain it, and it would be preferable to avoid any more destruction. We don't know what these inventions could do, especially since they're alien articrafts that he modified." J'onn replied.

"Agreed." Alex said while Kara changed into her supersuit in 5 seconds.

Alex and J'onn armed theirselves then the three of them headed out.

~~~~~~~~~~~~~~~~~~~~~~~~~~

"Come on!" Kara shouted as she got swatted across the room by the monster again.

"It has to have some sort of weakness!" J'onn shouted as he deflected another blow and phased through the monster.

"I think his Achilles heel is his heel. Look how guarded it is." Alex stated through her comms as she fired at the monster.

Kara flew towards the monster and used her heat vision to melt the thick armor that the monster had on its heels. Once the armor was melted, Alex shot a bullet at one of its heels. The bullet easily penetrated the flesh.

The monster roared in pain and swatted both Alex and Kara. They flew across the room and landed in a big blue box, like a photo booth.

Alex groaned and pushed herself up but the door suddenly shut, trapping both sisters inside.

"No!" Alex shouted as she banged on the door.

Kara got up and started to explore the small booth.

"Hey Alex there are buttons here. There's a big red one let's try pressing it." Kara said as she started to press the button.

"No Kara!" Alex cried but it was too late Kara had already pressed the button.

They both froze, the sound of creaking of machinery started to fill their ears

"Uh oh." Kara whispered.

Suddenly there was a flash of light and smoke started to come out everywhere.

Kara scrambled over to Alex's side and clasped her hand, Alex put her arm around her little sister protectively. There was a whooshing sound then silence.

The door suddenly opened and J'onn hurried inside.

"Alex! Kara!" he shouted as he looked around. He felt his heart beat fast when he found the sisters on the floor.

He kneeled down quickly and felt for pulses which he found, they were both faint but Kara's was fainter than Alex's.

He scooped them up in his arms and carefully stepped over the now detained monster, where agents were rushing to secure him and flew to the DEO.

~~~~~~~~~~~~~~~~~~~~~~~~~~

When Alex started to regain consciousness she felt like somebody hit her with a sledgehammer.

The familiar beep beep beep sound was everywhere, she slowly opened her eyes to the sight of J'onn sitting next to a hospital bed, hers. Strangely enough, there were no IVs in her hands or arms.

"J'onn J'onn." she whispered, shaking him slightly.

"Alex how are you feeling?" he asked, becoming alert.

"I'm better now. Too fine actually. What happened?" she replied.

"I found you and Kara passed out on the floor after you got locked in so I took you here. You had a concussion and a sprained wrist." he said.

Alex frowned and flexed her wrist

"But I don't feel anything." she said, confused.

J'onn nodded grimly and continued to explain

"Kara had broken ribs and a collapsed lung, Dr. Hamilton managed to stabilize her but she hasn't healed, even with exposure to sunlight from the sun lamps. You, however, your body healed from the injuries." he said, getting up to reveal Kara lying in a similar bed, the lump of bandages apparent under her hospital gown. She, however had 2 IVs in her right arm and hand and an oxygen mask strapped to her face and was staring at her with those sweet concerned blue eyes.

Alex looked at J'onn, her stomach clenched at the sight of Kara like that.

"What the hell is going on?" she asked.

"We think that device might have swapped your forms, meaning Kara is now human and you are a kryptonian."

To be continued