A/N: Noncest here, folks! You'll find out why in Chapter 2! ;)

Accident? (RinXLen)

Chapter 1

Len's POV

I woke up to hear the boring voice of my math teacher, Ms. Yowane, droning on about parabolas, quadratic equations, blah blah blah. I was tired! I already knew that stuff. She didn't need to go that far back. It was useless. I was smart enough to move on. I was the best at math in class, anyway.

My sister, Rin? She was not so good. So I had to help her with her problems every day, but I didn't mind. Rin was nice enough about it. She was a good sister to me and a good friend to everyone. Whenever she needed guidance, I'd be at her service. Of course, she wasn't getting any better, but at least I got to spend more time with Rin, my awesome sister!

As I raised my head up from my desk, I looked at the clock. How long had I been out? I squinted at the time.

To my right, a voice called," It's almost time for class to end anyway, Len." As I gazed at the person and tried to focus, I could see my twin sister, Rin, smiling directly at me. "Thanks, sis," I replied thankfully. I could just not read time as well as I could do math! If only...

The bell rang. "You are dismissed! " Ms. Yowane called aloud.

"Finally! I was beginning to get a headache from all that math!" I groaned, relieved.

"And I was just starting to get what she was saying!" Rin muttered sadly.

"Don't worry, Rin. I'll help you as long as you need help. I'll always be around if you need me," I assured Rin. Gee, she was so cute!

"Thanks, Len. I don't know what I'd do without a brother like you!" Rin said cheerfully. She then marched off to her next class, with that terrible teacher, Kaito! Gee, he sure gets on my nerves! He makes me go bananas! Hey, bananas! Yay!

I've heard from Rin's friend Miku that she likes Kaito. Young, smart, kind, generous, forgiving, patient, funny, hardworking, careful, tall, handsome Kaito. What's not to like about Kaito? I don't know! I just can not sleep knowing Kaito is Rin's chemistry teacher. By goodness, they don't even have a good chemistry! I was thinking all this while walking to my next class: history.

The day passed in a blur. The final bell rang, dismissing us home. I caught up with Rin.

"So, how was chemistry with Kaito?" I asked her.

"Oh! It was great! We made ice cream and had a party! Kaito said he threw it in honor of me! He made an orange-flavored ice cream for me! I loved it!" she exclaimed excitedly.

"I'm really glad to hear that you're Kaito's favorite, still. You've always been the best at chemistry," I said to her with a fake happy tone. So, Kaito. You decide to take my sis away from me, huh? Well, you're not getting her. I'll make her happier than you could ever make her!

We covered the walk home in fifteen minutes. I opened the door with my key and we stepped inside.

Our house was a good sized house, I guess. It had furniture and everything and we lived together. Our parents had died years ago anyway and our aunt, Auntie Luka, supported us, paid the bills and deposited money into our accounts for us. She had no kids and was a rich and nice aunt, I guess. Use the money to support family and yourself. Good choice.

It had 4 bedrooms, 2 belonged to me and Rin, and the other two were guest bedrooms. The guest bedrooms each had their own bathrooms, and Rin and I shared a bathroom. We had a good-sized kitchen, and I was the chef. Rin bought the groceries and cleaned up the house. We each had our own duties.

I dropped my backpack on the floor and went to prepare a snack for us. Well, I had a banana and she had an orange.

Afterwards, we took turns using the bathroom to shower and changed into our pajamas. Rin wore a thin nightgown with straps, since it was fairly warm anyway. Me? Oh... DON'T laugh, but I sleep in my boxers. Rin doesn't laugh because she's already gotten most of that out when we first started living alone.

I made dinner and we quickly ate to save time for homework. I went to her room and helped her with her math homework. I explained to Rin every detail carefully, but it seemed as if she wasn't really able to understand something as simple as algebra. Calculus was really the harder one.

"Rin?" She had drifted off into space again. "Do you understand?"

Rin had been staring off into space. "Hm?" She snapped back into reality. "You see, Len... I was just thinking about it, and I get it now! I finally get it!" A grin spread on her face, and I grinned as well. I was so relieved. Now I could go to slee-

"Can you help me with calculus now?" she asked me. I felt a bit woozy. My grin disappeared. "Uh, Rin? I'm really sorry for ths, but-" I fainted onto her bed. Like, for real fainted. I blacked out totally.

I suddenly awoke to find myself sleeping on Rin's bed. She had lovingly pulled the covers over me. And I was still in my boxers. My banana boxers. Oh, well. Rin was curled next to me, breathing softly, calculus homework in her hand. I pulled it out of her grip and set it on her desk. Her other hand was near her mouth, and she was sucking on her thumb.

It was actually quite normal for her, this habit. I didn't mind. I thought it was kinda cute, actually. Like a little baby. Rin began to shiver. It was cold, and she had given all of the blankets to me. I pulled a blanket over her and she immediately snuggled in closer to me. I could smell her orange-scented shampoo. It was a strange smell, but good.

It was then that I noticed a draft on my pelvic area. If you know what I mean. Yep, there was a hole in my boxers. Whup. Big screwup! I was about to go and get up to change into a new set of boxers. I got up slightly and sat up. It was three in the morning.

Suddenly, Rin snuggled next to my boxer area when I had sat up, somehow reached at my boxers, and pulled them straight off. And.. she was now next to me, sucking on her thumb, and I was pretty much completely undressed. Oh, man! Oh, man, this was bad! This was bad bad bad!

How could this get any worse? I was freezing cold, and if I moved too much, she'd wake up! How could this happen? Oh, Len! If only you weren't lazy and actually bothered to check for holes on your boxers!

I seriously needed to go! I needed to go! Go NOW! And now I was thinking escape thoughts... Len, oh, Len. What will you do? Oh,... Darn.

I am really gross. Oh, man, what was Rin going to do when she woke up? Oh, bananas! Oh, no!

I was sweating something like 200 miles per hour, whatever! I was frantic! Rin was sleeping, I couldn't get up, and I had to face Rin when she woke up! What would she do? If she saw me in my weak state and took pictures, I'd never be able to live it down if she showed them to the school! Especially since I was pretty much naked at the moment!

As if to answer my questions, Rin began to stir. She popped one eye open and suddenly saw my face.

"Um... Rin?"

Rin yawned and looked up at me. "Yes?"

"Whatever you do, do not look down."

She looked down. Uh oh. Here it comes. Her face immediately flushed wth embarrassment. "Errrr... Sorry...?" she began to say, averting my gaze.

"I swear, I didn't do it. I'm really sorry, Rin. It will not happen again, I promise," I told her, scared. What would she do?

"It's..." she mumbled something inaudible.

"Hm?"

"I was just saying it's okay... and... that it was my fault..." she looked away, but I could feel the heat in the room rising.

"Oh, Rin?"

"Mm?

"Ii's okay. It was totally all me,"I confessed timidly and quietly.

"Oh, ok... " Rin replied hesitantly. Her cheeks were tomato red by now.

If I looked in a mirror, I'm sure my cheeks would have been just as hot.

I trotted over to my room and slipped on a new pair of boxers.

An awkward silence settled over us. I pulled her into a hug, apologizing quietly to her once again. And then we kinda laughed about it and returned to Rin's bed. What a weird morning. We forgot about it as soon as we let sleep overtake us. And I learned not to be lazy anymore.

And to not think about my sister in that disturbing way!

Rin was still awake, eyes open, staring innocently at me. Was I in love with Rin?

I touched her lightly on the shoulder. "I love you," I whispered to her, testing her.

"Me, too!" she said and smiled sweetly.

"No, Rin... not in that way..."

"No, I do mean in the way you're talking about," she replied seriously and firmly. "I know what you mean, Len."

I blinked twice. Did she really mean that? I was doubtful. And my suspicion turned out to be right.

"Ha! Len, did you really just say that, or were you just practicing for our new video, Spice? Ha ha ha!" Rin laughed between sentences teasingly, grinning wildly. She was holding her stomach in and rolling around her bed with hysterical laughter, messing up the blankets.

"Of course I did! What else, huh? I mean, isn't it gross for us to like each other? We're twins, after all! And you're the older one, too!" I pretended to laugh and joke, but my insides were burning up in embarrassment and shame. I felt disappointed that Rin's feelings for me in that way were not real, though. I couldn't help it. I faked hysterical laughter, clutching onto my sides and rolling around with Rin.

We were both rolling around and laughing uncontrollably, giggling, and holding ourselves together. For a little while, it was fun. Then, Rin's face bumped into mine and our lips pressed against each other, her rolling onto me suddenly. I was so surprised, I couldn't move!

My eyes were wide open in shock, and I was frozen in place. Rin? It seemed like she was kind of enjoying it, and her eyes were closed. What was happening here?

I caught her trying to slip her tongue into my mouth, and opened my eyes wider. Also, even though Rin was 10 pounds lighter than me, I pretty much couldn't move. What was she doing?

I tongue-fought her tongue out of my mouth and pulled away, I ran out her room, into my room, and locked the door shut, jumping onto my bed and covering my head with my pillow. What had just happened? I liked it, yes, but what did Rin just do? Did she purposely plan the whole thing or did she seriously not know what was going to happen? Did Rin want this? Did she like this?

It was five in the morning. I had run out of Rin's room 10 minutes ago.

Was Rin still awake? I crept over silently to her room and pushed the door open slowly. It was dark and quiet. Too quiet. Where was Rin?

I stepped into the room. Suddenly, Rin jumped out at me and hugged me, and pounced on me. I landed on her bed and was extremely surprised, heart beating wildly.

"Len?" she looked at me curiously with innocent eyes.

"Yeah, Rin?"

"What just happened ten minutes ago? Because I did not plan that," she said plainly. "And I was not trying to slip my tongue into your mouth, so you didn't need to tongue-wrestle with me! I was just kinda paralyzed and gravity took its course! So... I couldn't move my tongue. And.. I closed my eyes because I didn't want to see your expression," Rin explained firmly.

"At least we got in some practice! That's the bright side!" I exclaimed jokingly. I smiled goofily at Rin and noogied her. "Come on, wasn't it kinda funny?"

"Yeah, it was funny. We practiced by accident!" Rin said, brightening up. "Well, we should get dressed for school. Let's go."

Before leaving, I said to Rin," Hey, sis! Wanna help me get dressed?" I grinned at her shocked expression.

"..."

"Okay, then," I replied to her and began to take off my boxers jokingly.

"Ahh! No! Not ever! No way, Len! Go somewhere else!" she shielded her eyes and looked away.

"Then would you like to watch me change?" I offered. It was a joke, after all.

"Len, no thanks. I've already seen all of you this morning and I have absolutely no desire to see you like that again. Except for when we practice for Spice, I am not tolerating seeing... eeeeek!" she screamed like she was going to die.

"What... Rin, what in banana smoothies is going on...? ...ohhh...m-my bananas are showing!" I looked down and saw my boxers were still on. Was Rin still that sensitive about seeing me in my boxers? "Oh...um...whups...I-I'll be g-going now..." I dashed towards my room and shut the door. Wow, what a crazy night and morning!

Who knew what in the world of banana smoothies would be next? I hope Rin won't run to Kaito because of this! This mission to keep Rin close to me was not going well! One thing was for sure; never sleep next to Rin until she doesn't sleep-pull off anybody's pants anymore. Wow! And I am so not into twincest!