After I Comforted My Younger Stepsister Who Had Her Boyfriend Taken From Her, She Started Becoming Obsessively Sweet - 19

Chapter 19: Immoral Early Leave

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Lunchtime ended and the fourth period began. The fourth period was math class. Our teacher, Oikawa-sensei, the bespectacled male teacher in charge, was standing in front of the blackboard. He was reciting equations with his usual air of indifference. My classmates were diligently copying everything into their notebooks, but I was the opposite. Unable to stay focused, my thoughts drifted elsewhere. To Shikino, to Orihara-san and to Sugisaki-kun, whom I never had a proper talk with before. The three of them kept spinning around in my mind, dragging me into a mire with no clear answer. I knew it wasn’t going to be easy, but why was Orihara-san so bent on attacking Shikino in the first place? Maybe she already liked Sugisaki-kun before he dated Shikino or something? I couldn’t understand. Every deduction I had was nothing but a mere speculation. I had no other choice but to ask them directly if I wanted clear answers, but… If only it were that easy, I wouldn’t be struggling like this.

What should I do…? As Shikino’s stepbrother and… As her boyfriend.

“Okay. Now… For this problem… Unami. Can you tell us the answer?”

“…”

“Hmm…? Oi, Unami…? Earth to Unami…?”

“…”

“Oiii~ Unami!~”

“-!!”

I snapped out of my daze when Oikawa-sensei raised his voice. I finally realized he had been calling for me, but I didn’t know why. After all, I hadn’t been paying attention at all. 

“Err… Umm…”

“….I asked you for the answer to this problem. Come on, tell the class the answer.”

“….”

The only thing I could do was smile awkwardly since I didn’t know the answer to that question. Oikawa-sensei then let out a long sigh .

“Forget that. Go out and splash some water on your face. Cool your head for a bit.”

“…Yes.”

Oikawa-sensei was mad at me, leaving me with no choice but to exit the classroom. I could hear quiet chuckles and whispers around as I stepped out of the class. 

“He’s got the energy to play around with his little sister, but can’t afford to pay attention to the class?”

Good grief. I knew I was in the wrong, but still… Getting teased like this was a bit too much. Well, nothing I said would make this situation any better. I just had to bear with the teasing until the heat receded. 

Sighing in my mind, I stepped out of the classroom.

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I left the classroom and made my way down the corridor toward the water fountain. The restroom was closer and I could wash my face in the sink, but I didn’t want to wash my face with the tap water in the restroom. I needed a moment to cool down somewhere clean, somewhere I could really take a breath. And so, I headed toward the fountain, but just when I was about to turn the corner, I unexpectedly ran into someone… Someone who had been occupying my mind just a moment ago. 

“Shikino…!”

Yes, it was Shikino. Even though class was still in motion, but Shikino was standing there, alone. She was gazing out the hallway window with a somewhat listless expression. She looked almost hollow. As soon as she saw me, the empty look on her face changed. Unshed tears started forming in her eyes and without uttering anything, she immediately threw herself into my arms. I held her close and asked the question lingering on my mind. 

“Sh-Shikino…? What’s going on? First year students should be in fourth period now too, right? So why are you here?”

“I can ask the same thing to you, Onii-chan. Why are you here? Second year students should be in their fourth period too.”

“Well… I, uh… I wasn’t paying attention in class, so I got scolded by the teacher…”

“So the teacher told you to leave the class to cool off?”

“Ye-Yeah, something like that. What about you?”

“I… I told the teacher I wasn’t feeling well. I said I want to go to the nurse’s office…”

“Huh…?”

“It’s just… There’s so much going on right now.”

There was no need for me to ask what she meant by that. Shikino must be talking about the incident during lunchtime. Orihara-san’s face immediately came to my mind. 

“…Hey, Onii-chan?”

“…What is it?”

“Onii-chan… You will always stay by my side, right…? You will always be my ally, right…?”

Shikino looked right into my face as she asked me that question. We were really close and her voice was barely a whisper. She gazed up at me, her eyes laced with a hint of pleading. She wasn’t trying to manipulate me. She was simply looking to be comforted, just like when she was little. My heart skipped a beat for a moment, but I didn’t pull back. I met her gaze and cleared my throat softly before nodding to her. 

“I will always be by your side, Shikino. I might give you a stern scolding if you do something really wrong, but I will never stop caring about you. After all, you’re my precious little sister… And you’re also my girlfriend.”

hearing this, Shikino’s eyes widened for a brief second. Her cheeks flushed in red. She quickly averted her gaze and as if she was unable to contain the embarrassment, she buried her face in my chest. She was acting so bashful, even though she was the one who asked me that question.

“…But you see, when I left the classroom just now, everyone was whispering about us. They were saying things like,’He’s got the energy to flirt with his little sister at school, but can’t focus in class.'”

“…Then, how about if we give them something even bigger? Something beyond a kiss.”

“N-No, no, no. Shikino-san, please don’t go too far…”

“I don’t mind it. I don’t mind being seen by everyone while… Onii-chan do all kinds of things to me.”

“A-All kinds of things…”

“Yes… Like… Even if you touch my body… Or kiss me with our tongues entwined… Or… Even if you go beyond that…”

“Tha-That’s not going to happen, okay?! Not in public, at least. Yeah, definitely not in public.”

“Then… What if it’s not in public?”

“Huh…?”

“What if it’s not in public? Like in my room for example? When it’s just the two of us… Onii-chan, would you… Do those things to me?”

“Fueh-?!”

“You will make a complete mess of me, right…? To make that woman understand…”

“Shi-Shikino…!”

“Onii-chan… Onii-chan… Onii-chan…”

Close. She was really close to me, but she still pressed her body against me, closing the distance between us even further. Shikino’s beautiful face was right in front of me. She was slightly flushed and her eyes were begging for me. Her softly furrowed brows dissolved any lingering thoughts in me. I knew I should resist the temptation, but…

“I… I don’t want to be apart from you anymore, Onii-chan… Will you please stay by my side… Forever?”

“Shikino…”

“I… I want to feel Onii-chan’s warmth… Always… Until I can’t think about anything else…”

“…”

“Onii-chan… Do you feel the same way? The same way as me?”

“Err…”

“Am I not enough for you, Onii-chan? I’m enough, right? Please tell me I’m enough… I… I will do my best. I will do my best so Onii-chan will keep thinking of me too…”

Shikino…

“Can we… Go home now? Dad and Mom won’t be home… No one will get in our way… No one… Not even that girl.”

I couldn’t give an immediate response. Shikino probably noticed how fast my heart was beating given how close our bodies were pressed together. I stared at Shikino. My face was probably as flushed as hers. I had decided to accept everything about her, including my little sister’s desire for me. 

“…Shikino, should we… Leave school early?”

“…Yeah.”

Orihara-san had called Shikino the worst. Then… Maybe I was the worst too for accepting Shikino as she was. But I didn’t mind. As her big brother… No. As her boyfriend, I decided to accept all of Shikino. Her good part, her bad part… Everything. 

Because… That was what I loved about Shikino. I couldn’t care less about everything. We… We were really going to cross the line that shouldn’t be crossed. Together.

We returned to our classroom for the time being. The fourth period was still in motion. I told the teacher that I wasn’t feeling unwell so I had to leave school early. I met up with Shikino near the school gate and headed home together, although we were leaving school a bit earlier than usual. It was obvious what we two looked like on our way home, but we didn’t care about the onlookers. Our hands, clasped together, were sweaty. Both of us were nervous about what was going to happen. 

We stopped by a drugstore to buy contraceptives. This was my first time and it seemed this was Shikino’s first time too. With trembling hands, I opened the door to my house.

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T/N: If MC chickened out I will strangle him myself (ꐦ¬_¬)