A.N.: Hey guys :D I'm here again to give you guys another Hakuouki story, but this time, not yaoi, and it's an OCxOkita story. It took me a while to write this and I hope you like it :D If you guys are wondering why it's rated M and if you think you might not read an M-rated thing here, it's just to be safe because this story will soon develop into an M-rated story.

Anyways, again, I hope you guys enjoy it :D read & review :)

Prologue
My Step-brother

Bringing girls home from work, making out with them in the living room, kitchen, balcony or whatever. That's what my new brother tended to do everyday, and what annoyed me, is that he would always bring them whenever I was home. One time, I've asked his...our mother if he brought women if she and dad was there (I got my new sex deprived brother and new mother through my dad's second marriage) and she had answered that no, he hasn't. In fact, that stupid brother of mine hasn't brought home any woman at all before his mother and my dad got married. WHAT THE HELL?

Basically, he started bringing women when he and his mother moved in with us and met me.

"Sana-chan!" I heard my new mother calling out to me from the living room as I was writing my Chemistry homework. "Yeah?" I call out. "Can you wake Sou-chan for me? Dinner is almost ready" Sou-chan would be my unbelievably infuriating brother. I so didn't want to approach that man, but my new mother was very nice and I didn't want to be seen as a disobedient daughter and decided to do what she asked me to do. Putting down my pen, I pushed myself off my chair and got up, and when I got out of my room, I turned to the right to stand in front of the door of the room right beside mine.

I lightly knocked on the door. "Souji-san, dinner is ready?" she waited for a few minutes, and there was no reply. "Souji-san!" she knocked again, but this time, a little bit louder. Still no answer. This bastard. I swear, if he was in front of me, I would have seriously hit him right now, and at the moment, I was hungry, and I did not care if he was going to eat or not, but because my new mom asked me nicely, I would do as she says and wake this bastard up. "Souji-san!" I repeated again and simply grabbed the doorknob and turned it, blinking as it turned and was pushed open.

There were weak sounds coming from the room and to be quite honest, I wasn't surprised anymore when I saw what I saw.

On the bed, I saw my new brother lying down on his back, naked, and right on top of him was a woman...also naked, and they were both kissing. More like eating each other's face out, with all the tongue I was seeing.

This was seriously becoming a daily occurrence that I really don't care anymore what I see. I'm seventeen, and I understand what older people do. My new brother is twenty-three, and he's an adult, so he's free to do whatever he wants. I don't really care.

I was still staring when I noticed my new brother saw me that he pulled his head away from the woman, however, he held on to her waist and seemingly pushed her down, making the woman reach what seems to be her 'climax.'

"Ahh! Shiou!" From what I remember, Shiou was my brother's host name. So the woman was another client?

The woman fell on top of him and they were both panting. "Ah," my brother mock-grinned. "Imoto-chan. What can onii-chan do for you? Is it urgent? As you can see, onii-chan is quite busy right now." I snorted. Oni-chan alright. You demon. "It's not me, Souji-san. Hana-san just finished making dinner and she wants us down," I studied what I was seeing and shrugged. "But I can tell her that you're busy and you can't come down to eat."

Souji blinked. "It's dinner time? Why didn't you say so? Let me just get dressed and -"

"No." I interrupted, and I saw the surprise on his face as he was talking to the woman on top of him. "You stay here and eat when I'm done eating. I don't want to see you in that table, because you know what? I'm done. I'm done with all these shit you're doing, and more especially because you're doing your horn dog fucking in front of me."

My brother shrugged. "Hello? Imoto-chan, just to inform you, this is my room and-"

"Because you knew I was coming here." I interrupted yet again. "Because you knew Hana-san was making dinner, and that because she's too busy, you knew she'd ask me to call you here."

"It's my life, imoto-chan, and this is my room, so I can do anything I want." He defended, and all I did was glare.

"Bullshit." I said. "Finish what you're doing, and come down." turning to the woman on top of him, my eyes narrowed even more. "And please send the woman home. Because this house still belongs to me and my dad. My house, my rules. And what I want is for the woman to get out."

This time, the woman on top of him pushed herself up and turned her head to glare at me. "You insolent brat!" she screeched. "Respect your elders." She got up from the bed and took the blanket and hurried up at me, her arms raising, readying itself to slap me, and instead of getting scared, I stood my ground.

I was serious. I didn't want her here.

"Elder?" I smirked, and to retort the 'elder' shit she was talking about, I raised my hand and gave her the finger, only infuriating her even more. "Why you little-!" I still stood there and waited for her hand to come in contact with my face. But what happened after that was what surprised me.

Without noticing him getting up from the bed, my brother got up and stood in front of me to block the woman and grabbed her by the hand.

"Shiou?" She was surprised when he appeared out of nowhere, and I stepped aside to turn to my brother and scold her, but when I saw the look on his eyes, I held my tongue.

"I did agree to let you inside the house," he started, glaring at the woman, who stood back in fear and couldn't move since her hand was held tightly by Souji. "But I did not allow you to hurt my family, especially my little sister."

"But Shiou!" she cried out. "She was insulting me, and I couldn't-Ouch! Stop! You're hurting my arm! Please let me go!" I saw my brother's hand tightening around the woman's arm and could actually hear him gripping it tighter.

"Souji-san!" I couldn't stand what was happening now. I know I was in the wrong for provoking the woman by giving her the finer, and I was supposed to be the one to suffer, but it was the woman who suffered. I felt sad for her that I stood by her and placed my hand over my brother's that was gripping her. "Souji-san, I'm okay." I heard from Hana-san that my brother has this protective streak about his family, but I never thought he would include me in it, despite the way with how I was acting.

Really. I feel sad for the woman, and I noticed her relaxing when I stood beside her. She was obviously scared of how my brother was acting now.

"Souji-san, let her go!" I tried to pry his fingers off her arm, but he just wouldn't let go. He wasn't listening to me. "Souji-san!" I tried again, and still to no avail.

Sana-chan, she remembered a conversation she had with her new mother just a few days ago. Sou-chan has been wishing for a little sibling from me, but because his father and I separated, I couldn't give him what he wanted. But this time, I'm really thankful to your father, because not only has he given me happiness, but he's also given Sou-chan the little sibling he's been wishing for. Sou-chan has so many friends, and all of them have little siblings. He would tell me how he wished for someone to call him 'onii-chan.'

Onii-chan...

"Onii-chan, let her go! Please!" that was when I saw Souji look at me, surprised. That was also when I felt his hold on the woman loosening, and so, I pulled her hand away to check if she was okay while my 'onii-chan' was still staring in daze.

"Are you alright?" I asked and the woman nodded, and then she turned around and grabbed all her clothes and literally ran out of the room with just a blanket covering her.

I simply blinked. "Will she be okay all naked and with just a blanket covering her?" I asked aloud and felt someone staring at me and turned to see my older brother's eyes on me. "What are you looking at?" he remained silent, and I just shook my head with a sigh. "Well, would you mind closing your mouth? Flies might go inside." He stared and noticed that his mouth had been indeed open, and so he closed it. "Imoto-chan...did I hear that right?" I tilted my head. "Did you hear what right?" he gaped. "Did I hear you call me 'onii-chan'?" No shit sherlock, but he wouldn't know. Really. "Nope." I answered and turned around to stick my tongue out.

"I heard you just did!" He cried.

"No I didn't." I shrugged. "But anyway, fix yourself up and come down to dinner. Onii-chan." With that, I took hold of the doorknob and pulled it close, but before it completely closed, I saw the look on his face and I grinned.

His mouth was open yet again. A thousand flies fitting in.

A.N.: Sorry I ended there xD but that's about it for chapter 1...actually this might just be a prologue :P but whatever, I hope you guys look forward to the next installment :D If there are any grammatical errors, I apologize.