A/N: My new fic! I hope you guys will enjoy it as much as my other fics! This is a new kinda pairing for me, it's the first time I ever wrote a KiraxCagallixAthrun fic. Lucky that I found this document in my computer! I wrote this long time ago, you see!
Summary: Kira started dating Cagalli on the first day of preschool, after a week, a new kid came. And steals Cagalli away from him, and now, he tries everything in his power to get Cagalli back.
Warning: ATHRUN HERE HAS RED HAIR, DO NOT WORRY IT'LL SOON TURN TO BLUE
Disclaimer: Just the usual, I sadly don't own it... But how would I feel if I own it...?

"Backfire!"

Chapter One: In The Beginning

Today was the very first day of classes, Kira Yamato, a kid with purple eyes and brown hair entered his classroom. He as now in Kindergarten. He aced is subjects in the previous year and was always the smartest and kindest kid in the class. Never did he have any competition. He was just the best.

Kira was seated beside a new girl, her name was Cagalli Yula Athha. She had blonde hair and amber eyes. Kira was amazed by her beauty, at first sight of her, he fell in love. Not a crush but love. He had a hard time talking to Cagalli and always blushed whenever he tried.

One the following day of class, Kira managed to talk to her and they became fast friends. He found out that Cagalli was a year younger than him and they had almost the same likes and dislikes. ALMOST.

The third day of classes, Kira gave Cagalli a stuffed bear that had a heart. And on that moment he asked Cagalli if it was okay if they'd 'go out'. Cagalli not knowing what he meant by 'go out' said yes. Kira was extremely happy and hyper as if he had a sugar rush.

After classes, Cagalli asked her older sister, Stellar what 'go out' meant.

"Why are you asking me?" Stellar asked Cagalli.

"Because!" Cagalli replied "Tell me or else I'll tell you to mommy!"

"Fine, 'go out' means that you'll be in a relationship." Stellar told her sister "And relationship means that you'll be boyfriend and girlfriend."

"Thanks, bye!" Cagalli walked to kitchen to get cookies.

"Wonder why Ca-chan asked that?" Stellar asked herself and then continued to study.

Kira and Cagalli had become closer and closer for the remaining time of their classes for that week. During Saturday, she and Kira played at the park together. And Stellar was the one baby-sitting them.

"Moms could be so cruel at time" Stellar murmured to herself then looked at the sandbox where Cagalli and Kira were playing "So that's why she asked... She's got a boyfriend... Or maybe a boy that is a friend" Stellar sighed and went back to reading.

On Sunday, Via, Stellar and Cagalli's mother, went to the mall an left Cagalli in the child playpen and Stellar had to watch over her. Stellar was watching over Cagalli when she saw the most popular boy in her class and heading her way!

"Yo, Stellar right?" The guy asked her.

"Uh, yeah..." Stellar stuttered and then blushed.

"It's good to see a familiar face around here... I mean, watching over my brother gets pretty boring..." The guy said.

"Brother? You have a younger brother?" Stellar asked.

"Yeah" He replied.

"What a coincidence! I have a little sister too, her name is Cagalli." Stellar smiled.

"Really? Mine's named Athrun" The guy smiled back "Hey, wanna grab a drink? I'll pay for you. Plus, we know that our sibs are gonna be okay since there's a police guy"

"Um, sure, Shin" Stellar smiled and went with Shin to buy a drink.

Inside the big playpen, Cagalli was playing with green modeling clay alone in the corner when a red haired kid went beside her.

"Hey, can I play with you?" The kid asked.

Cagalli looked at him and stared before replying "Sure"

"Thanks!" The guy smiled.

"Hey, what's your name? My sister told me not to talk to strangers but if I know your name you wont be a stranger anymore!" Cagalli smiled "I'm Cagalli, my sister calls me Ca-chan"

"I'm Athrun" Athrun smiled.

"Let's be friends okay, Ath-chan?" Cagalli asked.

"Sure!" Athrun smiled.

"Do you like ice cream?" Cagalli asked.

"Yep! I like vanilla" Athrun replied.

"Wow! But I like chocolate" Cagalli smiled.

They were left for a whole hour unattended by their parents or siblings. Stellar and Shin were back an were happy to fin their parents not there.

"So, where does you brother go to school?" Stellar asked.

"At the Kusanagi Preschool, but he'll start tomorrow since he had sore throat last week because he ate ALL the candy at home" Shin said and Stellar giggled.

"Hey, that's the same school my sister goes. They might get along well" Stellar replied.

"Well, that's good. My brother is a bit shy, it's good that he can have at least one friend!" Shin joked.

"I never knew you were this funny, Shin!" Stellar giggled.

Shin joined her in laughing.

"Hey, are you the one wo picks your sister up from school?" Sin asked.

"Yeah, my mom goes home a bit late and my father is out of town" Stellar answered.

"That's great! We can go together then! I mean... If that's okay with you..." Shin stuttered.

"Yeah, it's okay. At least I won't go alone, it's kinda boring going there" Stellar replied.

"Great!" Shin smiled.

The following day, Cagalli was at school early and so was Kira. They played a bit and when class started, the teacher brought in a new kid.

Cagalli's eyes widened when she identified who the kid was.

"Good morning, class!" The teacher, Aisha, greeted.

"Good morning, Ms. Aisha!" The class greeted her back.

"Today, we have a new student joining us. He's name is Athrun Zala." Aisha smiled to the whole class "I want you all to make him feel at home and I also want you to make friends with him."

"Yes, Ms. Aisha!" The class smiled.

"Good!" Aisha clasped her hands together "Now, Athrun, you will sit beside..."

Aisha looked around the room and saw Cagalli grinning happily.

"Sit beside Cagalli" Aisha finished.

Athrun's head jolted up and his eyes went wide. Cagalli was here! Boy was he happier than happy!

Athrun thanked the teacher and went beside Cagalli. There were tree students for every table.

"Now, everyone, I want you to open you books and read the story on page 3. Cause I will ask you to answer a few questions later" Aisha said.

Cagalli opened her bag and looked for her book. Kira got his and Athrun got his. They were both sitting on opposite sides of the table and Cagalli was on the middle.

"What's wrong, Cagalli?" Kira asked.

"I forgot my book..." Cagalli looked down then faced Athrun "Ne, Ath-chan, can we share books I left mine at home? Onegai?"

"Sure" Athrun replied "It's just a return for yesterday"

"Huh? What happened yesterday?" Cagalli asked.

"When your sister bought us ice cream" Athrun replied.

"Oh, I member now!" Cagalli smiled.

Kira's jaw dropped own to the bad place.

"What the heck! Why is he all over Cagalli! And what did he mean by yesterday! Cagalli is my friend! Not his!" Kira thought angrily.

Five minutes later, Cagalli whined...

"I don't know a single thing about what I read!" Cagalli wined.

"You want me to tell you?" Athrun asked.

"Really? You will, Ath-chan?" Cagalli asked.

"Sure, you are my friend! What are friends for?" Athrun replied.

"Thanks, Ath-chan! I promise you I'll get you an ice-cream later! my sister is picking me up and we always buy ice cream!" Cagalli replied.

"Well, my brother is also picking me up later and he told me that he'll come here his friend, maybe it's your sister. Hey, we can all go buy ice cream later" Athrun smiled.

"Yeah! Hey, where do live again?" Cagalli asked.

"At the neighborhood um, Boaz I think... Yeah, Boaz!" Athrun replied.

"Hey! I live there too! Our house has the number... um... uh... 4... 4... 463! Yep! 463!" Cagalli said.

"Hey, that's the house in front of mine! We're neighbors!" Athrun smiled.

"Yey! See? We can play every day now! We live in the same neighborhood!" Cagalli grinned.

While Kira's jaw dropped lower than the bad place.

"NO! How could that be! They live together!" Kira thought.

Aisha called their attention a few minutes later and told them to get a piece of paper. Then she asked them questions about what they read.

Cagalli had a hard time even if Athrun taught her, Athrun on the other hand thought it was easy. Kira had a BIT of a hard time. Five minutes after the quiz, Aisha announced to the class their scores.

"Cagalli Yula Athha you got 93! Good job!" Aisha said.

"Yes! Thank you so much, Ath-chan!" Cagalli smiled happily.

"No problem!" Athrun smiled back.

"Kira Yamato, oh! Very good! 99!" Aisha said happily.

Kira smiled happily.

"You're good, Kira!" Cagalli said.

"Thanks!" Kira replied.

"AH! Athrun Zala! 100! Great job!" Aisha smiled.

"Wow! Ath-chan! I didn't know you were this great in English! You got a higher grade than Kira! Wow!" Cagalli smiled.

"But you did great too, Ca-chan" Athrun told her.

"But you did better!" Cagalli said.

"Okay, class, I want you to answer the questions on page 4. Pass your papers tomorrow" Aisha said.

"I hope Stellar will help me later" Cagalli murmured.

"Want me to help you, Ca-chan?" Athrun suggested "Since we live near each other I can help you, it would be much funner that way!"

"Really, Ath-chan?" Cagalli's eyes went wide in happiness "Thank you so much!"

Then the two laughed together.

After classes, Athrun and Cagalli played with each other while waiting for Shin and Stellar.

"Wow, looks like they're having fun!" Stellar pointed at Cagalli and Athrun.

"Yeah, well, it's late and we all need to go home" Shin replied.

Then the two kids called their younger sibs.

"Stellar! Did you know that Ath-chan lives beside our house?" Cagalli said.

"Shin, can I go to Ca-chan's? We're going to study!" Athrun asked.

"I guess so, since Stellar and I also have a project to work on" Shin replied to his brother who only gave him a confused look "I said yes"

"YEY!" Athrun and Cagalli jumped up and down happily.

"At least our houses are beside each other" Stellar whispered to Shin.

"Yup!" Shin said "Or else it'll be hard to say no to these guys"

"Yeah, and if you know my sister she won't stop until she gets what she wants" Stellar joked.

"How does she do that?" Shin asked.

"She uses force, and I must say, she packs a powerful punch" Stellar replied.

"My brother is the same but he doesn't entirely use force, he gets annoying and throws things at you. And his aiming skills are marvelous!" Shin joked.

Stellar giggled at him.

"Ne, Stellar!" Cagalli called.

"What?" Stellar asked.

"Let's buy ice cream! One for Ath-chan too!" Cagalli said "Ath-chan helped me in a quiz today so you buy him ice cream!"

"Yes, Ca-chan" Stellar replied "C'mon, let's go!"

"YAY!" Cagalli and Athrun cheered.

Then the four made there way to the ice cream shop. Cagalli and Athrun held each other's hands as they made their way to the ice cream shop.

Unknown to them, a brunette glared at Athrun angrily.

Later that same night...

"I'll get you for this, Zala!" A brunette yelled in his room.

"Kira, it's time for dinner!" A voice from downstairs called.

"Coming, mom!" The brunette yelled back and ran out of his room.

TO BE CONTINUED...

A/N: Hey, this is KiraxCagallixAthrun. But there will be more pairings later on. And I hope you like this fic. And I won't update this fic if I don't have five reviews (5).

Sigh… Is it a fact that if you're like mad at Athrun for like not rescuing Cagalli from her wedding with Yuuna, and then when you see his face you suddenly lost your anger for him and drool instead?

Please also read and review my other fics: Deadly Love, Don't Leave Me Alone, Falling, I Love You, Jokes and Harmony, Lies in Love, Loved, Maybe, Moodulator, Mushrooms, Only Friends, Sick Day, Snowflake, The Truth, Valentine, Vampires, and Waiting.

And for you guys who are interested in Fire Emblem: Rekka No Ken/Blazing Sword please read and review my fic: Realization and My Lollipop!. Please, readers/reviewers, please, please, please read Realization and My Lollipop!