*Thud*

I looked around my room for the source of the noise as I realized it was probably Kirino trying to kick my door to get me to go to her room.

"Oi, keep it down, I'm studying!" I called out as I continued to practice spinning my pencil between my fingers. Sure, I was procrastinating, but I still didn't care for being called to play some eroge, plus I was already wearing my shirt and shorts I use to sleep, I was comfortable where I was.

Suddenly I heard a whimper of sorts and a voice breaking while yelling out, "Shut up and help me!" as I decided to check outside and see what's going on.

Kirino was on the floor, in her light greenish bluish pajamas, tears in the corners of her eyes, holding her foot in a cradling position.

"Heh, that's what you get for kicking my door." I thought aloud and immediately regretted as I felt something hit me hard enough behind the knees to make me fall on all fours. I was in that position making a cross shape over my sister, I was vertical and she was horzontal and still curled up into ball.

"I didn't kick your door. While running today I tripped and damaged my ankle. I somehow managed to make it home and take a shower, but when I reached the top of the stairs I fell again, but on your door. Stupid..." Kirino murmured as she somehow found the strength yet again to push me off with her left hand and sit up.

"Sorry, well you should really get this wrapped up, it looks pretty serious but not so much to where you'd need a hospital..." I commented as I got up and offered my hand, despite the fact that I know it would just be slapped out of the way.

"Idiot, I know that, that's why I went home and not a hospital, now then ... room" she started off nice and loud, but near the end she mumbled everything and all I could make out was "room"as she stared at my hand for a while, then at me when I didn't respond.

"I didn't hear that last part, what did you want?" I asked carefully, every word could result in a hit, I had to be even more careful with what I say around her than Ayase, at least with Ayase I got to be open about everything and say what's on my mind. It always results in me getting hurt, but I'm used to it by now.

"Hmph, I said carry me to my room. And while you're at it, bring the emergency kit afterwards. Don't get any funny ideas." She said very coldly with a small tint of red in her cheeks, never looking me in the eyes. She actually wanted me to carry her? I thought I wasn't allowed within a mile radius if my intention was to get near her. But as her cheeks became a deeper shade of crimson I saw that she did indeed want me to carry her, my hearing was right. Wait why was she turning redder, is it because I've staring at her face? Oh wait she extended her arms toward me already, and she's looking away.

"Fine, whatever." I finally decided to respond and ignoring her arms that wanted me to carry her on my back, I picked her up bridal style and began walking to her room. She stayed quiet and red the whole time, she even grabbed my neck as not to fall, but it was such a short walk, she didn't need to do that.

Now, why didn't my parents pick her up and take care of her you may be asking. Well, the answer is simple, I was given the task of taking care of the house as my parents went on a sort of "second honeymoon" I believe they called it. Basically they wanted time away from us and now that I'm 17 they decided I can "man the house" or something like that while they're gone. I think they just said that to make me feel better about the fact that Kirino was entrusted with the money so she could take care of the food.

Anyway, I set her down on her bed carefully and started walking downstairs to the bathroom to get the emergency kit. Doesn't seem like it should really belong in there, but I guess it makes it easier to find. After picking it up I made my way upstairs again and knocked out of habit before realizing I should just open the door.

"What took you so long?" Kirino boringly asked, obviously not amused by her current state of immobility.

"I didn't even take one minute, stop complaining." I retorted as I sat down next to where her feet where on the bed and opened the kit.

"Who said you could get on my bed?" Kirino complained yet again.

"Who said I HAD to help you fix your ankle?" I again returned while I carefully wrapped up her ankle.

"There, I'm done, tell me if you need anything." I said, sighing as I began to walk toward the door. But just then a loud boom hit and I noticed the state of the outside world. It had been raining, Kirino must have gotten home right about when it started since she was dry.

"W-wait, stay here. I'll even let you lie down on my bed, just for today, if you leave I'll have no way of calling you so stay." she suddenly ordered shakily and rushed while she scooted near the wall next to her bed and began patting the space beside her hurriedly.

I began chuckling as I realized that she probably never got over her fear of storms and was so desperate not to be alone in this situation that she resorted to asking me indirectly to sleep next to her. The more I thought about it, the harder it was to contain my laughter, it came to the point where she began to notice and threw a pillow straight at my face.

"Pervert! Die! Don't laugh, I'm not letting you near me that way! If you touch me I'll kill you, broken ankle or not!" she started ranting as I realized she must have gotten the wrong idea from my smile and occasional chuckles.

"Fine, fine, I get it, I was just thinking about when you were little you were the same way, I mean honestly, don't misunderstand me now, the only one I harass is Ayase!" I proudly exclaimed before realizing I probably shouldn't have said that. The reaction was bad enough when it was actually Ayase I said that to, I can only imagine what her best friend would do to me for saying that just now.

"Whatever, she already told me about how you said that to her. You really have no shame, do you? Anyway, I wasn't like this as a kid, it's because of my ankle, not the storm that I want-" just then thunder cut her off, but this time, like that night a while before I found out about her hobby, the lights went out.

"Just hurry up and get in here!" she yelled in the darkness as I heard her tossing around the blanket everywhere while trying to get under it, with the occasional "OWW" from where she moved her foot too fast.

"Haha, alright, alright, not the storm, suuuure." I teased as I walked to her bed and laid down next to her. I'm not really sure of her reaction since it was dark, but a sudden flash of lightning hit and I could see she was gritting her teeth, blushing, and had a furrowed brow as she laid on her side, facing me before pulling the covers over us when another thunder caused a stir.

I sighed, realizing what I had to do, I could tell she was gripping the covers in an attempt to hold in how much she wanted to cry from how scared she was, so I did the brotherly thing to do.

I hugged her tight and told her "Everything's gonna be okay, mom and dad aren't home, but I promised to take care of the house and that's exactly what I plan to do. You're safe, don't worry. If anything happens, even with your broken ankle, I'll make sure you're safe before I am, okay? So calm down, you'll be alright." I tried to say soothingly and softly, and, at least by my standards, I succeeded.

"Stupid..." she looked up, "So if a burglar came, I'd be the first to be hidden, you'd use your own life to protect me?" I couldn't see very well even more now under the covers, but my other senses told me she was staring me right in the eyes.

"Yes, I would, so calm down and go to sleep, you'll be fine." I replied staring right back. What was this, even in complete darkness I could see her eyes and they were staying connected to mine. I couldn't look away either. It felt awkward and I didn't even notice, but I started leaning in.

Wait, what am I doing?! Why am I leaning in?! We're related, I shouldn't be doing this! I need to stop! But by the time I realized and reasoned with myself it too late, not only had she closed her eyes in expectancy but she started leaning in too, so even after I stopped, our lips made contact.

"Krrino, ths ishn't rght, shtp" I tried mumbling against her mouth, but heck even I couldn't understand what I was saying. She pulled away after five seconds the laid her head next to my chest while hugging me back. She must have been satisfied if she didn't call me anything immediately afterwords. Aw man, what have I gotten myself into?!

Okay, so this is the first chapter! :D

For the reference to the thunderstorms, baka-tsuki (they translate the light novels into English) put up a translated, "Previous day tale", so I think it is cannon, I'm just not sure where they got it from. To read it, just type in baka tsuki oreimo on google (it should be the first one) and scroll down until you find the one called "House-sitting in a thunderstorm" I just wanted to put that here in case anyone was curious about it.

Ok, so, I'll try to update as fast as I can, at least once a week. :D Please leave a review for comments on how to make it better or ideas for future plot! Thanks for reading!

EDIT: Ok, so sorry for the confusion guys, but this takes place around the second season, NOT during the thunderstorm before everything happened. That's why it says "...LIKE that night a while before I found out about her hobby, the lights went out." This is when Kyousuke is 18 and Kirino 15, again, sorry for the confusion, I was just referencing the thunderstorm story.