Even The Little Sister Does It!

The chaotic night gave way to dawn.

“(Not enough sleep…)”

Due to the commotion with Yukine last night, I ended up going to bed late, and now I was standing at the sink rubbing my eyes.

My body felt fatigued all over, and my mind was barely functioning.

Why is it that men, after releasing, feel like their soul has left their body the next morning?

Regardless, it’s all Yukine’s fault for getting me all riled up like this.

“(How strong was that aphrodisiac?)”

According to Yukine, it’s supposed to make you “turn into a wolf all night,” and with her coming on to me like that in such attire, my rationality was seriously worn down. 

“(And to top it off, we kissed…)” 

Accident or not, we ended up kissing despite being siblings. 

That, combined with everything else, left me feeling incredibly weird last night.

“(Can I really maintain my dignity as an older brother from now on… Wait, did I even have any dignity to begin with?)”

No matter how much I resist, she keeps pushing.

Regardless of my determination, I have to reconsider it because a girl like Yukine, who is on a whole different level, is seriously trying to break down my defenses and make me reconsider my stance.

If I continue like this, I might end up succumbing to Yukine’s advances and making a serious mistake.

I absolutely must avoid that at all costs!

As I psyched myself up in front of the mirror, the door swung open.

“Fuahh~ Morning, Nii-san.”

“Oh, Yukine.”

Yukine stood beside me, radiating a beautiful aura even though she should be just waking up, and let out a yawn.

“Did you sleep well, Nii-san?”

“How could I sleep well… because of your energy drink!”

“Oh, so it really works! Hehe, I’m glad to hear that!”

“It’s not good at all! You have no idea how tough it is for a guy to deal with that!”

“That’s why I said you can use me, right?”

“I can’t use you for that!”

As I vehemently denied, Yukine dropped her shoulders in dejection.

“Guess you really need someone like Imari-san with big b**bs, huh, Nii-san… uu~.”

Seeing her so down suddenly made me feel sorry for her.

“N-No, it’s not like that! It’s just that, you know, you’re my little sister, so I can’t use you for that…”

“Then, do I make you excited, Nii-san?”

“Wha! W-Well, that’s…”

When I hesitated to respond in the usual way, Yukine started whimpering softly.

“Nii-san doesn’t get excited of me…….I, no longer have a reason to live…..”

“I do get excited! I do! Honestly, I was at the end of my ropes!”

“…….really?”

“Really Really! Yukine is a wonderful girl!”

As I said that, Yukine’s expression changed nonchalantly, and she hugged me tightly.

“Yay! I love you, Nii-san! Chu~♡”

“Stop it, stop it! Honestly, Yukine, you’re so unfair.”

“Hehe, all girls are unfair like that, you know?”

“Haa, that’s troublesome.”

I began to feel that I had to do something. 

As I realized last night, just like she declared that day, Yukine wouldn’t hesitate to use any means to seduce me. 

Before I knew it, I could be caught off guard and end up with a fait accompli… Even such a criminal development was not entirely unimaginable.

“(I seriously need to buy a lock for my room…)”

Never did I imagine that I’d have to buy a lock to prevent my little sister from sneaking into my room at night.

…Well, maybe not quite that extreme.

“nfufu~, it’s so much fun with Nii-san in the morning~♪”

Yukine clung to my arm, rubbing her cheek against it as usual.

Despite what happened yesterday, she’s full of energy as ever.

“Yukine, you seemed to have slept well, didn’t you?”

“No, not really.”

“Is that so?”

With her energy level resembling someone who had definitely slept a solid eight hours, it seemed like she had slept soundly afterward.

“Yeah, just like you, Nii-san, I was feeling quite… you know, excited.”

“Don’t say it like that! And don’t confess those things to your brother!”

“What can I do about it? I mean, when you make that sexy face, it’s only natural for me to feel… you know, sexy too, right?”

“Don’t get sexy feelings from your brother!”

“But it happens! And besides, we kissed yesterday, but then you put a stop to everything! Of course, I wouldn’t be satisfied and would feel excited!”

“Ehh!”

Feeling overwhelmed by her momentum, I shrunk back. Somehow, I started feeling like I’m the one at fault here.

“Since it couldn’t be helped, I had to comfort myself you knowwww!”

“Ughhh I don’t wanna hear about my little sister’s s*x life!”

“You have too many delusions about your little sister, Nii-san! Look here, even little sister mast***ates!” 

“You dropped quite the bombshell on me!?”

“I may not look like it, but I have quite the strong libido, you know⁉”

“No matter how you look at it, you’re exactly that type Yukine!”

Thinking about it, where’s the surprise in her behavior or words when I look back on everything? 

But still, Yukine… Ugh, what a terrible start to the day.

“It’s all your fault, you know?”

“Eh, really…”

With cheeks puffed out like a blowfish, Yukine  pouted and turned away while clinging to my arm.

Sighing at Yukine’s sour mood, I glanced at my reflection in the mirror.

“(I feel like I’ve aged these past few months…)”

I couldn’t shake the feeling that Yukine was draining the life out of me.