Chapter 1: The Question That Started It All

Hola! It is I, StoryMaker014, bringing you another new series! :D

Now this is my first time writing in this fandom, and honestly, I don't know what kind of evil spirit had possessed me to even write this kind of fanfic. XD

This story contains some really mature subjects, especially INCEST. If you do not like these kind of things, then please turn back now.

Also, some of the characters here may seem OOC. Especially Cagalli. And this may be Rated T for now, but it MIGHT change as the story progresses. ;)

Anyway, enough of that. Here's the first chapter!

Enjoy!

Most wars begins in a violent way.

The first Bloody Valentine War started with the annihilation of an entire colony. More than 200,000+ innocent lives lost in a single day. A double amount of that suffered the same fate in the months that followed. It's a war between two opposing forces that wanted to eradicate each other permanently due to racial differences. However, with the actions of a small group of people, the conflict was ended. Somewhat.

The second Bloody Valentine War started with a theft. A daring heist that resulted in the destruction of an entire space colony, again, along with the devastation of more than a dozen major cities on Earth. Just like before, it escalated into a full blown conflict between the same two factions from the first one. Only later was it revealed though that another faction was behind all of these in their plans to make every human unable to have free will so that there will be no more wars. No more differences. A universe where each person is not capable of choosing for themselves. And just like before, the same group of people prevented this from happening. And the war ended.

In these two incursions, it can be said that the driving force behind the events that had transpired was due to personal beliefs. And rightly so. The first one was because both sides thought the other was inferior. That they have no right to live in the universe. The second was because someone thought that free will was the reason behind all the evils in the universe. That by eradicating freedom, then evil will follow. After all, a person cannot do something bad if he or she couldn't act on it. Right?

The third war, however, was different. Very different.

It began, not in a violent way... but with a simple question.

Orb Mansion, January 19, C.E. 79

"Kira, am I pretty?"

Kira Yamato, pilot of the ZGMF-X20A Strike Freedom Gundam, Commander of ZAFT, Ultimate Coordinator, best friend of Orb Admiral Athrun Zala, twin brother to the Princess and Chief Representative of Orb Cagalli Yula Athha, and fianceé of PLANT Supreme Council Chairwoman Lacus Clyne, blinked once. Then twice. Then thrice.

"What do you mean, Cagalli?" He frowned, confused, yet never taking his eyes away from his laptop's screen. He was sitting on a sofa at one of the living rooms in Cagalli's mansion in Orb's capital city, having visited her and Athrun together with Lacus after the blonde princess had requested their aid to help her oversee the production of advanced Mobile Suits.

"Just what I asked." His sister replied. "Am I pretty?"

He should have just said no. He should have just ignored her and continued to type his report regarding the latest models of prototype Mobile Suits being delivered today for the Orb Union. It would have save him and Athrun from the pain and heartbreak that they will later receive. But of course, being the kind and good big brother that he was, Kira Yamato merely sighed and answered as truthfully as he could.

"Yes, Cagalli. You are pretty."

Biggest mistake of his life. EVER. Like, seriously. In fact, it was so bad that him screwing Flay Allster during his weakest moments, at the tender age of 16, was nothing, NOTHING, compared to the consequences that his simple answer to his beloved twin sister will give. And only much later did he regretted this.

"Really?" His sister asked somewhat excitedly as she sat beside him.

Sighing once more, Kira closed his laptop screen and glanced at Cagalli to his left. He was just going to give her another one of his advices, which was happening a lot lately. By the sound of it, her question meant that she was somehow insecured about her looks, and that was actually wierd in a way.

Because Cagalli Yula Athha has never asked anyone, at all, whether she was pretty or not.

And so, Kira Yamato was about to tell her that she doesn't need to ask those questions. Because she was indeed pretty. Not just her physical appearance, but also her heart. Her personality. However fiery it might be. And no one could-

Kira Yamato's mind went blank at the sight of her twin sister.

She was wearing casual clothes. And at first, Kira saw nothing wrong with it. Then he noticed the short red skirt that barely reached her mid-thigh. Her tank top that hugged her body so tight it made obvious the fact that she was not wearing a goddamn bra. Worst of all, she was smiling. But not her usual smile. No, this was different. It's as if she didn't expect Kira to tell her how pretty she was. And it was eerily similar to the looks most teenage girls always gives whenever their crushes speaks to them.

And then, she giggled.

"Am I really that pretty it made your mind stop working?" Cagalli teased.

He didn't bother to answer her. Because he was too busy comprehending what had just happened.

His twin sister had giggled. Cagalli Yula Athha, "Lion" of Orb, had just giggled.

The fuck?

She never giggles. Not even if Athrun was around and it's just the two of them. And come to think of it, Cagalli never wears a skirt so illegally short and a tank top so thin and tight. It was very unusual for her to do that. Mostly, she wears something that emphasize her strong attitude. Her tomboyish nature. Very rarely does she wear something girly. And she always gets angry whenever Lacus forces her to wear a dress. But right now, it was different.

Because Cagalli Yula Athha, for the first time ever, was wearing clothes fit for her gender.

And she looks very pretty.

Kira was snapped out from these thoughts when his sister giggled. Again.

"You know, I would have stayed here with you some more just to see that face." Cagalli smiled, her eyes twinkling with amusement and... excitement? "But I got a lot of things to do." She stood up and smooth the wrinkles on her clothes. "See you later, brother." She smirked and strode towards the door. Just before she exits, Cagalli turned her head in Kira's direction and winked.

She winked. Cagalli Yula Athha winked.

What the fuck?

January 25, C.E. 79

The days passed without incident. Having inspected the new batch of prototype Mobile Suits together with Athrun, Kira deemed them ready for mass production. It has been six years already since the last war, and their ageing GINN, DINN, BABI, Dagger, Windam and Murasame units needs a replacement. After all, they have to make sure that they can respond to any threats from those who would want to destroy the peace they had strived hard to bring. And they couldn't do that if their enemies are more technologically advanced than them. The first and second war were good examples of that.

Unfortunately, with Kira's busy schedule, he couldn't spend some time anymore with his fianceé. Though they sleep under the same roof, in the same room, and together on the same bed, he was so tired from his work that by the time Lacus enters their quarters, he was already snoring. Thus, it prevented the both of them from doing some fun activities with each other.

But today, Kira was planning to change that. He was going to make up for those days he couldn't spend time with his pink-haired lover by taking her on a romantic dinner date to an expensive restaurant. After that, he'll take her back to their house where they will finally indulge themselves on a night of pure fun and ecstacy.

Smirking slightly to himself, he began to search on the internet for a good restaurant. There were lots of them around the capital, but he wanted the best only for his beloved Lacus. And so, there he was sitting on a sofa, his eyes glued on the screen as his fingers typed furiously across the keyboard. Out of the corner of his eyes, he noticed Cagalli entered, humming a tune softly. As she neared a mirror, she suddenly stopped and looked at herself.

As she was doing this, Kira was busy browsing on a website of a five-star restaurant he had come across online. Drooling slightly at their menu, he picked up a glass of water from the table and started to drink.

And that's when Cagalli spoke.

"Kira? Are my breasts small?" She asked nonchalantly.

Kira immediately spewed the liquid in his laptop screen. Seeing what he had done, the violet-eyed Coordinator yelped and quickly searched around for something, anything, to wipe out the water that threatens to damage his device. Settling on a piece of strange pink cloth lying on the arm rest of the couch he was sitting on, he grabbed it without actually looking what it is first and proceeded to wipe the screen.

Halfway through, he glanced at Cagalli and saw her twisting around as she inspected her reflection on the mirror. She was wearing a shirt this time, but it was still too damn tight it prevented to hide the fact that she was braless. Again. Finally, she faced Kira and smiled innocently.

"What do you think?" She asked casually as she gently squeezed her breasts. "Are they small?"

"Uh..." Kira squeaked. He couldn't reply. He cannot reply. His brain was too busy processing what his sister had just asked him. What she had just done in front of him.

She just fucking squeezed her breasts and asked him, her own brother, if they are small.

What the hell is wrong with her? Kira mentally screamed. Then his eyes widened as she slowly approached him, her hands clasped behind her and making her chest jut out.

Kira mentally screamed. Again.

"Hey! What are you doing?" Cagalli suddenly asked and sat beside him. Then she gasped, prompting Kira to look at her in confusion.

"What?" He frowned.

The Orb Representative silently pointed to the cloth he had just used with an amused expression.

Turning his head slowly, Kira stared at it and blinked. There seems to be nothing wrong with it. Just a piece of cloth. A cute one at that. Although, upon closer inspection, he noticed what appeared to be three holes on it, one large and two smaller ones. Kind of like... oh.

OH.

Kira's cheeks burned as he realized with horror what he was holding. He felt Cagalli leaned closer to him, her hot breath tickling his left ear as she said something that almost made his heart stop.

"You just made my panties wet, brother." His twin sister whispered seductively.

SEDUCTIVELY.

He froze, and not because he was holding Cagalli's damn panties. A cold chill ran down his spine as his brain tried to deny it. Deny the fact that his own sister had just obviously goddamn flirted with him.

"See you later, Kira." He heard her say before she stood up, snatched her pink underwear away from him, and strode out the door, leaving him staring at his now forgotten laptop with a dumbfounded expression.

Two weeks had passed since that incident. And during that time, Kira tried his very best to avoid her. Of course, Cagalli's stubborness and persistence made it hard for him. Every time they see each other, she will always ask, and do, something highly inappropriate and clearly embarassing.

"Kira, do you think my ass is nice?" Followed by a squeeze of said part of the body.

"Kira, do you think my eyes are pretty?" Followed by Cagalli batting her eyelashes at him.

"Kira, do I smell good?" Followed by Cagalli getting closer to him.

"Kira, am I sexy?" Followed by Cagalli smiling innocently at him while wearing nothing but thin nighties that barely covers her privates.

Many more incidents like these happened, and it frustrated him to no end. His sister's suddenly perverted attitude was driving him crazy. And he couldn't do anything about it since he was the kind and good big brother.

It doesn't help the fact that she is Orb's leader, and he's just a commander.

Kira groaned and almost banged his head against his desk in frustration. He tried to tell Athrun about this. After all, the blue-haired Admiral is the only one who might be able to stop Cagalli and her unusual behaviour, but whenever Kira tries to talk with his best friend, he was always getting an unexpected amount of work. It's as if fate is delibirately preventing Kira from escaping the nightmare he was thrust into.

What's more, he wasn't able to bring Lacus to that expensive restaurant he planned to take her to. Not only that, but somehow, his fianceé had suddenly became busy too. Meetings here. An inspection there. Numerous visits to every goddamn part of Orb. And whenever he tries to start a conversation with Lacus, she will always have this distant and troubled expression. When Kira ask about it, she will simply tell him that she was just busy and has a lot of things on her mind. But her eyes always told otherwise.

He was becoming more busy. And he's spending less time with her. Come to think of it, ever since they had arrived in Orb aboard the Archangel, all four of them had started to be overloaded with work. Him. Lacus. Cagalli. Even Athrun. Their hectic schedule prevented them from seeing their respective lovers. Kira with Lacus. Athrun with Cagalli. It was strange. And weird. Because though they are not seeing their lovers more often than usual, Kira and Athrun are spending more time in the presence of each other's girlfriend. Kira with Cagalli. Athrun with Lacus.

Okay. That was definitely starting to get really weird.

Or maybe he was just stressed and tired, making him interprete things in a bad way. With a sigh, Kira leaned back in his seat and closed his eyes. It was still 11am in the morning, but he was already feeling exhausted. Despite his increased stamina due to being a Coordinator, the ungodly amount of paperworks littering his desk was enough to worn him out. At this rate, he'll never be able to take Lacus to that restaurant this evening. She was returning today from another one of her trips, escorted by Athrun, Dearka and a few others. And he had promised her that they will go out for dinner. That's why he told to himself that he will take it easy today. However, fate definitely hates him today. Instead of filing less paperworks, he was actually doing just the opposite.

With another sigh, Kira stood up and made his way to the next room, where he seated himself on the sofa. He have decided that he'll just take a short break from his work. There's only so much his body could take before it gives in, and he can't take that chance lest he make Lacus worry about him.

Andw so, Kira closed his eyes again as he settled on a more comfortable position. Just as he started to drift off into sleep, however, someone knocked on his door.

Oh yes. He thought. Fate really hates him today.

"Come in." He said tiredly. It wouldn't do for him if he ignore that as it might be important. Besides, he had just realize that taking a nap at this time would be unwise since lunch break will soon start. He might miss it, again, if he takes a nap.

The door opened slowly, revealing a certain blonde princess holding a tray.

"Hi." Cagalli said cheerfully as she strode inside and approached him.

His day couldn't be more worse than this.

"What are you doing here, Cagalli?" Kira sighed despite already knowing what she actually came for.

Cagalli sat beside him after setting down the tray on the table. "Well, I was hoping if we could eat lunch together." She answered with a smile.

Well, there seems to be nothing wrong with that. She is his sister, after all. And as a good brother, it is his responsibility to spend time with her when she asks for it.

"I mean, you seem to be getting somewhat lonely lately." Cagalli said quietly as she scooted closer to him. "And I thought I could do something about it." She placed a hand on his hair and began to stroke it gently.

Okay. Now that's starting to feel very wrong.

"Um, can we just eat?" Kira asked politely while trying very hard not to blush. "I'm, er, getting hungry." He nodded and squirmed away from Cagalli's fingers as he leaned forward to grab a plate of chicken.

His sister merely smiled and proceeded to untangle her fingers from his hair. As Kira began to eat, she spoke again.

"Kira, do you think I'm a good kisser?" Cagalli asked softly while staring at the floor.

Immediately, Kira choked on his food.

"Why did you asked that?" The violet-eyed Coordinator gasped after chugging a whole glass of water.

"It's because of Athrun." She replied, her head bowed. Then, as she lifted her head to look at him, Kira noticed the tears forming at the corner of her eyes. "I-I think he doesn't love me anymore." She choke back a sob.

Kira stared at her, stunned. She has been having problems in her relationship with Athrun? How could that be?

Then he gasped as Cagalli started to cry softly.

"Hey, it'll be okay." Kira said soothingly as he wiped her tears. "I'm pretty sure that's not it. Athrun loves you as much as I do with Lacus. You know that as well." He said as he cupped her cheeks with both hands and gazed at her eyes.

"I do." Cagalli nodded weakly. "But still, these past few days, he suddenly became cold towards me." She said tearfully. "Every time we kiss, he will break from it shortly after. It's as if he doesn't want my kiss anymore!"

Kira frowned, puzzled by what she had just said. Why would Athrun do that? He knows that his blue-haired best friend loves Cagalli more than anything in this universe. There's no reason for him to do that.

"I'm pretty sure it's not that." Kira said. "We've all been busy lately, even you. And I think he's just tired from all the work you're giving him." He said softly as he started to stroke her hair gently, trying to calm her down.

"You think so?" Cagalli gazed at him with a doubtful expression.

"Of course." Kira nodded with a smile.

His sister stared at him for a few moments, as if she expected him to say something else, before sighing. "I guess you're right." She mumbled.

"Don't worry about it." Kira smiled warmly at her. "I'll talk with Athrun later if you want."

At this, Cagalli snapped her head up and stared at him with a hopeful expression. "Really?"

"Of course! I-" He was cut off mid-sentence when Cagalli engulfed him in a tight embrace.

"Thank you! Thank you! Thank you!" She repeated over and over again.

"Anything for you, Cagalli." Kira said gently as his sister finally released him. Then he chuckled slightly, making her frown.

"What is it?" She asked.

"Nothing." Kira answered with anotger chuckle. "It's just that, I find it funny how you asked me if you're a good kisser or not when I actually haven't even kiss you on the lips in my entire life. I mean-"

He stopped. Everything seemed to stop. Even his heartbeat.

Because at that moment, Cagalli Yula Athha, his own twin sister, pressed her lips to his. And it's not just a simple sisterly peck, but a passionate one. Full of love.

And lust.

As they finally broke apart, Cagalli whispered something that sent a chill down his spine.

"Now you have."

...Uh... Did I seriously just wrote this? *blush*

Um, okay. So I hope I did well and you all enjoyed that. Expect the next update when you see it.

Until next time!