A/N: All the characters belong to DC Comics. The characterization is based off CW Supergirl and CW The Vampire Diaries. No copyright infringement intended. Since a non-Supergirl character cannot be listed here, this story is about Kai Parker, Mon-El and Kara Danvers.

I dedicate this story to all my friends who wanted to read a MonKai story! I LOVE Mon-El and Kai Parker, and last night when my friends and I talked about a story where Mon-El and Kai could be brothers, I couldn't resist writing it. So I really hope you enjoy this. Leave me a tweet or a review to let me know how it is.

On with the story, folks! :)

Brother Mine

Chapter - 1

Kara Danvers woke up to soft kisses being trailed on her bare shoulder. Smiling, she turned on her back to see Mon-El looking at her keenly.

"Morning," Kara greeted, pulling his head down for a kiss.

Mon-El kissed her back and nudged her nose with his before saying, "Good morning, my love. Did you sleep well?"

"You know I always sleep great next to you." Kara bit her lower lip when she saw him lean again for another kiss.

When Mon-El pulled back, he wrapped his arms around her, pulling her closer and eliciting a shrill of laughter from her. "So… since you don't have to go to CatCo today and we don't really have much to do at DEO and since it's been quiet for a while… why don't we stay here?"

"By here you mean in bed?"

"Right. The bed. Not all day… but you know." Mon-El winked at Kara, and she couldn't hold back her smile.

"I would love that," she muttered. "But don't you have to be at the bar?"

"I have a late shift today. I can stay in."

"So, what are you waiting for?" Kara pulled him closer, so close that Mon-El was on top of her, kissing her fervently before trailing his lips down towards her neck. He was about to go lower when Kara's phone rang. Kara let out a small groan and sat up. Mon-El had already brought her phone to her and she saw Alex's name flashing on the screen.

"Hi Alex, what's up?" Kara answered the call.

"Kara, you need to come down to the DEO immediately. There's been an emergency and he's not willing to talk to anyone! Not even J'onn can get through him. Be quick!"

"But, Alex, wh—" Before Kara could finish her sentence, Alex cut the call. Sighing, she looked up at her boyfriend who seemed just as curious as her.

"What's wrong, babe?" Mon-El asked, getting out of the bed and slipping a t-shirt over his head.

"Emergency at DEO. I'll be back soon." Kara super sped out of the bed and Mon-El watched as she got ready. Putting on her Supergirl suit, she asked, "Do you wanna come along? We can finish the work and head back to bed."

Mon-El smirked. "I like the sound of that. Two minutes."

Kara watched him do exactly what she did minutes ago, but it didn't take him two minutes, he was next to her in matter of seconds, ready to go. Kara flew out of the balcony and Mon-El leapt behind her. Of course she was faster, so when she reached the DEO before him, she saw Alex pacing around the control room, sighing loudly.

"Alex, what is it?" Kara asked in concern.

"Kara! You're here!" Alex ran to her sister's side. "I don't know what happened to him, but he's been doing crazy stuff. We caught him this morning. And he's not willing to talk. All he does is smirk, and I really really want to punch him right now!"

"Alex, calm down. Who are you talking about?"

"Hey! Why are you so fast?" The sisters heard someone ask. Turning around they saw Mon-El walking in. Alex's eyes widened seeing him. She pulled out at her gun and held it at him. "WHOA!" Mon-El said, holding his arms up. "What did I do?"

Kara put herself in the middle, shielding Mon-El. "Alex! What are you doing? This is Mon-El!"

Alex lowered the gun. "If he's Mon-El, who's that guy we have captured?" As the words left her mouth, Kara turned to glance at her boyfriend, who looked pale as if he had seen a ghost.

"Mon," she called, running towards him and grabbing his hand. "Come on, baby. Let's go!" Kara pulled him along with her as they followed Alex to the holding cell.

Walking in, Kara froze when she saw just who was sitting inside the cell, whistling lightly. She couldn't believe her eyes. Was she seeing double?

The man sitting inside looked up when he saw people walk into the room again. His jaw dropped when he saw the man standing next to the tall ginger and the hot blondie.

"Mon-El?" he asked, surprise evident in his voice. When he saw Mon-El nod, a smirk replaced the frown. "Who would have thought? You and I in the same room again!"

Mon-El let out a sigh and kneaded his temple. He walked towards the glass that was separating him and the prisoner. He placed his hand over it, and the prisoner got up and did the same. "Kai?" Mon-El blurted out.

"Glad you remember me!" Kai smirked, moving back. "And why is it that every time we meet, I'm locked up?"

"Kai, what are you doing here?"

Alex made her way towards Mon-El and grabbed his arm. "Who is this? Do you know him?"

Mon-El nodded quietly. He stood looking at Kai, who was busy frowning at Supergirl. "That's a Kryptonian!" he sneered. "What the f*ck is a Kryptonian doing here, Mon?"

"Calm down. She's a friend!" Mon-El assured him. Turning to face Kara and Alex, he asked, "Can you give us a minute alone? I'll join you once I'm done talking to him."

Kara nodded and turned around to leave, but Alex wasn't sure if it was safe to leave Mon-El with a man who looked just like him. That morning when four DEO agents brought the man in, she thought it was Mon-El. She even wondered if he was affected by something Red K equivalent to a Daxamite. Oh, but she had been so wrong. Kara walked towards her, gently grabbed her arm and walked her out.

Once both Kara and Alex had walked out, Mon-El turned to face Kai. "How did you get here, Kai-El?"

Kai shook his head. "I'm not an El anymore. Not after mommy dearest kicked me out of my rightful place to make you the next king, brother mine. And it's Kai Parker now; do you have a human name too?"

"Mike Matthews."

"Change it to Parker. Let's put the past behind us, be the brothers we were meant to be!"

"Kai, stop this right now! Mother didn't kick you out to make me king! She said it was the prophecy!"

"Yeah right. Whatever makes you sleep at night, Mon. Where the hell is that old hag again? Did you all decide to visit earth for holidays? Did mommy dearest plan an invasion while you were at it?"

Mon-El looked away. "Daxam is gone. It's a wasteland now." When he looked up again, he saw something flash in Kai's eyes, a sense of remorse. But he quickly controlled himself and asked, "So they are all dead? And only you escaped?"

"I did. But I was stuck in the Well of Stars for thirty-five years, Kai. I came to earth few months ago. Believe me. If I had any idea you were here, I would have done my best to find you!"

"No shit, Sherlock!" Kai rolled his eyes at him. "You were stuck in the Well of Stars? I was stuck in the Phantom Zone for ages! And guess what? It's a cruel, dark place where time doesn't pass! And when I finally got to earth, I looked the same. I was the same twenty-year-old, who was cruelly ripped from the title of prince!"

"Brother, you have to believe me. Whatever our parents did, I didn't have a say in that. You know that all too well!" Mon-El yelled back.

"Mon, you need to get me out of here. I'll be out of your hair. You will never see me again! I give you my word."

"I can't do that. You have been captured by the DEO for whatever crime you committed! Until I know what it is, I can't help you." Mon-El sighed seeing his twin glare at him.

"So you are on their side? You are still not on my side, Mon-El? After all that I did for you? I saved your life, brother! I gave up my throne for you! I gave up everything for you!"

"And I am grateful, Kai-El. I truly am. You have no idea how happy I am to know you are alive. All I want to do is hug you right now. But the DEO knows you are an alien, and they kept me locked up too, when I first got here. But I promise, I will get you out."

Kai could see that Mon-El was speaking the truth. After all, his brother was the good son. If he hadn't been five minutes older than Mon-El, Kai knew very well who was fit to be King. And it was not him, sadly.

"Just get me out of here, brother. I'm not talking to anyone else." Saying that, Kai sat down. When he saw Mon-El looking at him, he smirked and waved him goodbye.

Mon-El turned around and super sped out of the room. When he walked back into the control room, he saw Kara talking to J'onn, Alex and Winn, repeating everything he had just said to Kai. When they saw Mon-El walking in, Kara asked, "Why didn't you tell me you had a brother, Mon-El?!"

"Kara, you never asked. And the way you detested the prince, how was I supposed to tell you about Kai?"

"Oh, really? You lied about being the Prince of Daxam! You lied for months!"

Mon-El crossed his arms across his chest. "Kai-El was THE Prince of Daxam, Kara! He was the frat boy of the universe! Just because the Fortress has some records of the Daxam royalty and you saw my twin and started judging me and broke up with me when the truth came out, doesn't change the fact that I was the other prince who really wanted to do something good! But you never let me explain!"

Kara took a step back, hearing his words. It was true that she went to the Fortress of Solitude to find out more about Daxam and then she saw him – the prince. And he looked just like Mon-El. But it was someone else all along.

Mon-El was now talking to J'onn. "Why is he here?"

"Your brother has been beating up humans and aliens and doing some dirty work for whoever pays the most," J'onn explained. "I can't read his mind. And he's strong. Stronger than Supergirl."

Winn raised his hand and when J'onn nodded, he spoke, "So this dude we captured is Mon-El's brother who's been working as muscle for hire? We don't know him at all. Mon-El, did you know he came to earth?"

"No. Kai was banished. I tried my hardest to make my parents change their mind about him. But they never listened. He's not a bad guy. I give you my word. That's my brother, guys! He's my family. My blood. And I'm sorry, I'm on his side."

Seeing Mon-El's stubbornness, J'onn asked, "What is it that you two want?"

Mon-El let out a relieved sigh. "Let Kai out. Under my custody. I don't want him locked up and accused like how I was." His eyes drifted towards Kara and Alex. Kara looked away, not willing to meet his eyes.

J'onn observed them quietly. Then he finally spoke, "Kai Parker is your responsibility, Mon-El. If something goes wrong, I will have you both behind that cell and no one will get you both out."

"Understood, Sir."

A/N Part 2: Kai freaking Parker! Oh yeah! XD So how did you like the whole twist on the Prince of Daxam thing? I know the end was a bit sad for Karamel, but hoping stuff get better and not worse because Kai is here. I'm trying to keep Kai as psyKAItic as possible but not the murderous crazy hottie he was in the TV show. Let's hope I do justice to Malachai (who's not exactly a Malachai here).

Review and Comments are much appreciated!

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