I do not own Sword Art Online or anything related to Reki Kawahara and Studio A-1 Pictures. This story will be focused on the Kirigaya Siblings, Kazuto (Kirito) and Suguha (Leafa). Also, spoiler warning: M is in case of sexual themes and stuff. Anyway, other than that, enjoy!

Sword Art Online: Kirito X Leafa, The Kirigaya Sibling Affairs

Chapter 2

January 16, 2027 – Daytime

After finishing up at the lingerie store and buying the lingerie that Kazuto suggested for Suguha, the Kirigaya siblings continued on their little 'date' shopping around the mall. However, throughout shopping around the mall, Kazuto hasn't been able to focus on anything or even look at his sister who had been smiling and hopping around happily while looking around the mall to find a good store, especially after seeing her in such sexy lingerie that, for some reason, got him a hard boner. What was worse, after seeing that lingerie she wore, he was now already starting to see Suguha more as someone of the opposite sex instead of a family member, he was starting to see Suguha more as a woman.

"No! No, no, no!" Kazuto thought to himself as he shook his head, trying to get that thought out, "Stop, don't think like that! Get a hold of yourself, Kazuto! You have Asuna and Sugu's your sister! Don't think of Sugu like that!"

Unfortunately for Kazuto, try as he might, he couldn't help but take a glimpse of his sister, or rather, her body figure as he started looking at her sexy body from top to bottom and from right to left. As he kept looking, he began to notice more and more of Suguha's womanly features, including her large breasts that had grown larger since he was trapped inside SAO. But most of all, he was starting to see how sexy Suguha was right in front of him, so much so that, deep down, he just wanted to go and take her for himself and have some steamy and intense se-

"NO!" Kazuto thought to himself, scolding himself not to think that way about his sister, "NO! STOP! Don't think that way! Don't think that way, dammit!"

"Onii-chan?" said Suguha, catching his attention as she looked at him worriedly, "What's wrong? You look troubled."

"A-A-A-AH, NO, NO!" Kazuto stammered, "NO, NOTHING! I-IT'S NOTHING, REALLY! I-I'M FINE!" He managed to calm himself down and said, "I'm fine."

"Are you sure?" Suguha asked, "You look like you're sweating a lot, and your face is all red."

"O-Oh, really?" said Kazuto while he laughed nervously, "I uh…I guess I didn't notice. Must be because of the heat and all."

"But it's not that hot." Suguha pointed out, "In fact, it's pretty chilly today. I mean, why else would we be wearing jackets?"

"O-Oh, uh…right." said Kazuto, "I uh…t-that's right. I forgot. Guess it must've been my jacket then, Ahahahaha…"

"R-Right." said Suguha with a sweatdrop.

"Uh, more importantly," said Kazuto, changing the subject, "Is there anywhere else you wanna go to at the mall? I mean, we are still here, so what other clothes do you wanna buy?"

Suguha smiled and said, "Actually, Onii-chan, I was thinking of buying some nice cosplay outfits."

"Huh?" said Kazuto confused, before realizing what she meant and began blushing at the thought of his sister dressed in cosplay outfits, "Uh…c-cosplay outfits? Uh…w-what for?"

"For fun, silly." Suguha laughed.

"O-Oh, uh…I-I see." said Kazuto, "I didn't know that you like to cosplay."

"Normally, I don't." said Suguha, "But I've been hearing from my schoolmates about how great and fun cosplaying as different people really is, and since we're here buying new clothes, I just figured that I should go buy some cosplay clothes to have a nice change of pace for once." Suguha looked at her brother and thought, "And to sexually entice you and get you to notice me a lot more."

"I see." said Kazuto.

"Anyway, what about you, Onii-chan?" Suguha asked, "Anything you wanna buy? Like new clothes or…?"

"Oh, not much, really." said Kazuto, "Although, I am thinking about getting a welcome back gift for Asuna when she comes back from her trip."

"Oh, yeah?" said Suguha.

"Yeah." said Kazuto, "I'm hoping that she'll love whatever gift that I have for her when she gets back, and that she deserves it for her hard work. Oh, and for Yui, too."

"Wait, Yui-chan?" Suguha asked at the mention of her brother's in-game daughter, "Is she with Asuna-san and Alice-san, too?"

"Uh, actually, no, she isn't." said Kazuto, "She's with Mr. Kikuoka. Or rather, with one of his superiors."

"Wait, what?" said Suguha, a bit shocked, "Really?"

"Yeah." said Kazuto, "Apparently, his superior wanted to apologize to me and Asuna for involving us in the mess of Project Alicization and the mess involving the Underworld. They wanted to apologize in a form that was felt most appropriate for us, but in order for them to do so, they needed Yui for that."

"But, what for?" Suguha asked, "And what form of apology are they talking about?"

"Honestly, even I don't know myself." said Kazuto, "Although, I'd imagine it has something to do with the Underworld of Project Alicization. Specifically, the people in there."

"I can't believe you entrusted Yui to them." said Suguha.

"Well, believe me, I didn't trust them with Yui." said Kazuto, "Not at first, at least. But Mr. Kikuoka told me that his superior said it would greatly benefit me and Asuna, and Alice as well if everything goes right, and assured us that it would be the greatest form of apology that we would have. And they promised that once they were done with it, they'd return her to us. So, even though we didn't like the idea that they'd take Yui from us for whatever they were doing, we had no choice."

"Was Yui-chan okay with it?" Suguha asked, worried about Yui being away from her brother and Asuna.

"Well, surprisingly, yeah, she was, actually." Kazuto smiled a bit, "And if I know Yui, she's an A.I. who can tell whether someone is lying or not, and she told us that Kikuoka's superior wasn't lying to us and that she's okay to go with them if it benefited us. Plus, they did promise that they'd return Yui to us once they were done."

"I see." said Suguha as she sighed in relief, "Well, I hope they give back Yui-chan soon."

"Yeah, me, too." said Kazuto, "Anyway, would you mind helping me prepare gifts for Asuna and Yui? I could really use your opinion on the best gifts for them."

Suguha smiled and said with a nod, "Sure, Onii-chan!"

Kazuto smiled back and said, "Thanks, Sugu."

It didn't take long for the Kirigaya siblings to buy the best gifts for Asuna and Yui, and the two continued with finding clothes for them to buy, although Suguha was the one buying clothes the most as she was buying cosplay clothes while Kazuto just stood and watch as she went to try them out, even asking for his opinions on the clothes she was wearing.

Some clothes were natural.

Some looked traditional.

Some looked cute.

Some looked expensive.

Some looked inspirational.

While others looked downright too sexy.

Eventually, though, they finished buying whatever clothes that the Kirigaya siblings could find, and it was already reaching nighttime.

"Man, we sure bought a lot, huh?" Suguha smiled while carrying her bags of clothes.

"Yeah." said Kazuto, "Although, we might've been at the mall for too long. Look, it's already nighttime now."

"Yeah, it sure is." said Suguha, while she thought, "Which is exactly what I planned." Then she said, "There's probably no way we can get to the bus stop on time."

"Yeah, you're right." said Kazuto as he took a look at his phone, "Plus, even if we did get to the bus on time, it'll start to rain pretty soon, and we'll end up getting wet if we stayed out in the rain."

"Oh, no." said Suguha, "And I just bought these clothes, too. It'd be bad if they got wet. What'll we do, Onii-chan?"

"Well," said Kazuto, "For now, I think the best way is for us to stay at a hotel or something to keep ourselves outta the rain. According to the weather, the rain will last until tomorrow afternoon, so there's no way we can go back home right now or even tomorrow morning."

"I see." said Suguha, while she thought, "Yes! Exactly as I've planned." Then she said, "Well if we're gonna stay at a hotel to stay away from the rain, I know a hotel that we can go to."

"Really?" Kazuto asked.

"Yeah." said Suguha, "I kinda had a feeling that something like this would happen, so I've been looking online to find a hotel where we can stay for a while in case something like this happens, though I admit it wasn't easy. It's just a few blocks from here, and we'll be safe from the rain if we stay there for a while."

"Oh, I see." said Kazuto, "Okay, I'll trust you on that, Sugu. I'll call mom and dad and let them know that we won't be able to come home because of the rain, and let them know we'll be okay."

"Okay!" Suguha smiled, "I'll leave that to you, Onii-chan!"

As Kazuto began dialing the number to their home and calling their mom, Suguha turned around away from Kazuto and thought with an excited smile on her face, "Yes! This is it. This is it! This is finally it! Onii-chan and I…no, Kazuto-kun and I are finally gonna do it! We're both alone, just the two of us, away from our friends and family! Once we reach and check in to a love hotel, we're finally going to have sex!" Suguha sighed blissfully and thought, "Finally. Finally, Kazuto-kun will be mine!"

She heard footsteps approaching her and she turned around and saw it was her beloved brother and soon-to-be lover coming towards her, and he said once he approached her, "Hey, I just finished with my call with mom and dad, and they said that we're allowed to stay at a hotel for a while, just as long as we get back home tomorrow once the rain stops."

"Really?" said Suguha, sounding just as surprised as possible, "That's great!"

"Yeah." Kazuto nodded, "So, let's go and get to the hotel you've mentioned before it rains."

"Right." Suguha nodded with a smile before she wrapped her arms around her brother's left arm and said as she began dragging him along with her, "Let's go, Onii-chan!"

"W-Whoa, whoa, hey, Sugu!" said Kazuto as he was being dragged by his sister in the arm, "Hold on, just slow down!"

"Can't!" Suguha smiled, "We gotta hurry, or the rain will start falling soon!"

Kazuto looked at his sister for a bit before he sighed in defeat and thought, "She sure seems happy about going to a hotel with me, and pretty excited too." But then Kazuto began to blush as he felt his sister's boobs being pressed onto his arm and thought, "Although, I think she may be too excited about this for some reason. I can feel her boobs pressed against me!" And, feeling how soft her breasts are pressed onto his arm, Kazuto suddenly started to have a boner again, which made him think in a panic, "Ah, GODDAMMIT! WHY AM I GETTING A HARD-ON AGAIN?! SHE'S MY SISTER, DAMMIT! WHY AM I GETTING AN ERECTION FROM MY OWN SISTER?!"

Kazuto quickly looked away in embarrassment so that he wouldn't have his sister look at him blushing in beet red. While he did so, however, Suguha's attention was discreetly towards the growing tent that was right between his legs, and there was no doubt in her mind that her brother was getting an erection from the thought of her and her alone, which made her really happy deep inside.

"Oh, my God, yes!" Suguha thought happily, "Kazuto-kun is getting hard for me! He must be having lewd thoughts of me! God, yes, I'm so happy!" Suguha then looked up to her brother who was looking away from her and thought, "And he must be looking away so that I wouldn't have to see him blush. That's so cute! But…he can't hide that from me, and he won't have to." Suguha quietly licked her lips and thought, "Soon, you'll be all mine, Kazuto-kun. Oh, I can't wait!"

Then, after enough walking, they finally made it to their destination; the hotel where the Kirigaya siblings, and soon-to-be incestuous lovers, will be staying. More specifically, a secret love hotel for couples who want to have time for themselves and make love as much as they want, especially in secret. It was a large white fifteen-story building that had twenty bedrooms on each floor for guests who stays in and a very large swimming pool at the very top of the building.

"Whoa!" said Kazuto, amazed at the size of the hotel that they were to stay at, but oblivious that it was secretly a love hotel, "That's a really large hotel!"

"Yup!" Suguha smiled, "And what's more, it's actually really cheap to stay in, about 1500 yen per week!"

"Wait, seriously?!" said Kazuto, surprised, "That much for a week?! That is cheap!"

"Yup!" said Suguha, "I've done a good amount of research on the hotels like this one! Though, it really wasn't easy since I had to try and figure out how searching on computers works last night."

"Really?" Kazuto asked, "You searched through the internet for a whole night just to find a hotel?"

"Uh, yeah." said Suguha, laughing a little while rubbing the back of her head, "But, again, it wasn't really easy. It took me almost hours just to figure out the search thing and find the right one I'm looking for."

"Huh." said Kazuto, "Well, I gotta admit, you really outdid yourself, Sugu. Even going through that much trouble just to prepare for when the rain will come. I'm actually proud of you!"

"Thanks, Onii-chan!" Suguha smiled.

"Although, you could've just asked for my help if you wanted to work on the computer and all, right?" Kazuto asked, "You could've just called me."

"Yeah, but you were out of town and not home, so I couldn't." said Suguha, "Plus, you were probably busy being with Asuna-san, so I didn't wanna call and bother you."

"Ah, true." said Kazuto, "Well, thanks for being considerate, Sugu."

"No problem!" Suguha smiled, before looking up at the sky and saw dark clouds appearing and forming more in the sky and said, "Anyway, we should get in now before it rains. C'mon!"

"Ah, right." said Kazuto as he followed his sister into the (love) hotel.

As soon as the Kirigaya siblings got inside, rain began to fall and pour outside and just in time.

"That was close." said Kazuto.

"Yeah." said Suguha, "Anyway, I'll go and get us checked in. You stay here and watch over our stuff, okay?"

"Yeah, got it." said Kazuto.

With that, Suguha leaves to go to the reception desk to check herself and her brother in. As soon as she got to the reception desk, Suguha went and placed some yen changes on the table and said, "Hello, we'd like to check in a room for the whole night, please!"

"Oh, of course." said the receptionist, "Give me just a minute." The receptionist took the changes and placed them in the change reception, then went on a computer and began typing to get Suguha and her brother registered in their room, before she said, "If you could both please give me your names, I'll get you two through and checked in."

"Okay." said Suguha, before she said their names to the receptionist, "Suguha Kirigaya and…Kazuto Narusaka."

"Okay, I got it." said the receptionist.

Suguha sighed and thought, "I never thought I'd have to use my brother's birth family name for this one. I wonder when was the last time he was called Narusaka?"

"So, is it just you and the young man out at the door?" the receptionist asked.

"Ah, yes, just us." said Suguha.

"I see." the receptionist smiled, "And this boy with you, is he your boyfriend?"

Suguha turned to look at her brother, who was waiting patiently for Suguha to get them checked in, before she smiled and turned back to the receptionist and said, "Yes, actually, he is! But it's actually a secret relationship between him and me, so please don't tell anyone about it."

"Ah, I see." said the receptionist, before she smiled and said, "So it's like that, huh? A forbidden relationship. Well, of course. Don't worry, miss. I promise I won't tell any single soul about it."

Suguha sighed and said, "Thank you. The last thing I need is for people to find out about us and we get into trouble."

"Anyway, you're both registered to Room No. 1505, at the top floor." said the receptionist as she gave out two hotel card keys to Suguha, "And you should know that since you two are a loving couple, your rooms at the top floor are very special, so you'll both get to have very special treatments, including better bedrooms and better baths. And what's more, if you two want some privacy together, there are no security cameras placed anywhere there and the rooms are all soundproof, so you two can do whatever it is you please without having to worry about anyone bothering your alone time together."

Suguha gasped and said almost excitedly, "Really?! Anything we want?!"

"Of course!" the receptionist smiled, "Absolutely anything!"

"E-Even have sex with each other?!" Suguha asked in a whisper so Kazuto didn't hear her.

"Yes!" the receptionist smiled, "And without questions!"

"Wow!" Suguha began to sparkle, "We can do whatever we want! That's awesome! This is too good to be true!"

Suguha began squealing so much like a happy high school girl in love while the receptionist just stood and smiled, not at all surprised nor bothered by Suguha's excitement, before Kazuto came up and said, "Hey, Sugu, have you got us checked in yet?"

"Yup!" Suguha smiled, "I just finished getting us in!" She then grabbed his hand and said as she began dragging him along, "Now let's go!"

"W-Whoa, hey, Sugu!" said Kazuto, as he was being dragged by his sister, "Hold on!"

"Have a good time, you two." said the receptionist, before going back to her computer and getting back to work and waiting for the next customer.

After the two made it to the top floor and got out of the elevator, the Kirigaya siblings went and found their designated room that they would be staying at: Room 1505. Once they'd arrived at their room, Suguha wasted no time on placing the card key onto the scanner, and the door unlocked, before she opened the door and the two came into the room that they'll be staying at.

It was a very large, very nice, and fancy room that they were in, with walls painted pink, a single large window that views outside of the building and showed how far at the top they were, a large flat-screen TV, a white desk, white drawers, and a very large white queen size bed that could fit about (possibly) five to fifteen people.

"Whoooooaaa!" said the Kirigaya siblings in awe at the room they were in.

"Now THIS is a very nice room to stay at!" said Kazuto, "This is great!"

"Yeah, really great!" said Suguha, "I'm glad that I search through the internet for this!" "And it's a perfect place for us to be alone together!" Suguha thought, "And no one will bother us, and no one will know about us!" She then turned to her brother and said, "Anyway, I'm gonna go and take a look at the shower. And then after that, I'll go and take a shower, too."

"Okay." said Kazuto, "You do that, then. I'll just watch some TV while you do."

"Okay." Suguha smiled before she went up and kissed her brother on the cheek, making him blush from her contact with him while not even noticing that she took one of the shopping bags, and she said with a smile, "Have a good time, Onii-chan."

With that, Suguha turned around and went to go and take a shower. As soon as Suguha was gone from sight, Kazuto began to sigh heavily before he sat on the bed and thought, "Goddammit! What is going on with me today?! And why am I starting to think lewdly about Sugu?! She's my sister, for God's sake!" He then looked down and noticed that his boner hasn't even gotten down since they went out shopping together, making him groan in frustration, before he shouted in his thought, "Ah, Goddammit! Fuck it, I don't care anymore! Sugu's been driving me crazy lately, showing off to me her hot and sexy body, even though we're siblings! I just take it anymore! I'm gonna go off for Sugu!"

With that thought in mind, Kazuto began to unzip and then pull down his pants along with his boxers to take them off, springing out his now very large, erect, hot, and throbbing pulsing dick. And then, without missing a beat, he placed his hand on his dick and began to rub it, masturbating to the thought of his sister and her hot and sexy body, all while he began to moan and groan out her name.

Little did he know, however, was that Suguha was secretly watching him from the small opening of the door to the shower room and she began to masturbate as soon as she saw her brother taking out his very large dick and began jacking himself off, all while she thought to herself, "Oh, wow! Onii-chan is so big…! Onii-chan…Onii-chan…no…Kazuto-kun…Kazuto-kun…!"

So, what do you guys think? Please, be sure to leave a review for me on what you guys think of the story! I hoped you all enjoyed it. Don't be shy and don't just read the story, REVIEW and tell me what are your thoughts of the story!