Little Sister, Don't Use Me as Your Fap Material! ~Operation to Capture the Perverted Brother-Sister's Special Fetish Girl~

Chapter 8: We Have No Flags

“I want to talk to you about the dangerous stuff packed inside my little sister’s bag.”

I turned around and consulted with my childhood friend, Akazaki Natsuki, who sits in the very back row by the window — right behind me.

I figured that when it comes to matters concerning a girl of marriageable age, it’s best to ask another girl of the same age.

“Hey, it’s pretty rude to call the ‘works’ I made for Madoka ‘dangerous stuff,’ don’t you think?”

It seems I chose the wrong person to consult with.

So you’re the creator of those cursed objects, huh?

This girl has such a cute face, yet she’s doing the most insane things.

“…Don’t make such a weird face.”

I didn’t change my expression at all from the start.

“I just gave my cute childhood friend the ‘Stalker Seven Tools’ when she asked, and installed 15… no, 16 hidden cameras in your room. That’s all.”

“Eh? There are hidden cameras in my room?”

“Yes. You can monitor everything in real time from Madoka’s PC. I also set it up to automatically record the past 5 days in high quality.”

The mystery of why there was such a high-spec PC along with multiple monitors (that looked more suited for a stock trader) in Madoka’s room — despite her being terrible with technology — was finally solved.

And it was for the worst possible reason imaginable.

“Wow… I didn’t notice the cameras at all. Where exactly did you put them?”

Rather than shock or confusion, curiosity won out.

“Hmm~ On the desk, the bed, the back of the chair, the ceiling light, the tissue box… Oh, and the eyes of that teddy bear I gave you last year as a ‘birthday present’ are actually special miniature cameras.”

“Even that teddy bear… I was genuinely happy when I received it from you, you know…”

“Heh~ So you were happy to get a present from me, huh~ lol”

Natsuki gave me a mocking, teasing grin.

“…Forget I said that. My bad.”

This girl really enjoys toying with a pubescent boy’s pure feelings…

“By the way, I overheard some guys talking before… Do you like me?”

“No way—”

I couldn’t bring myself to say “there’s no way.”

Saying it out loud felt like denying my own feelings. As frustrating as it was, I swallowed the words.

“Sorry, but I already like someone else, so… too bad lol”

I got rejected before I even confessed.

What is this vague emptiness I’m feeling…?

“That said, even if I didn’t like someone else, I wouldn’t feel anything for you anyway lol. Better luck next time lol.”

She didn’t have to kick me while I was already down.

I never had any expectations to begin with.

I’ve been your childhood friend for over ten years — I know damn well there’s no chance.

“Your face is great, but your personality is seriously fucked up.”

“Do you like my face?”

“Honestly, there’s nothing about you worth liking except your face.”

“Ehh~ Isn’t that too mean lol?”

In other words, your face is beautiful enough to more than compensate for your shitty personality.

Be proud, you who stole my first love…

“…You’re not using me as fap material, are you…?”

Ha?

What is this idiot saying?

Of course I am.

You’re my childhood friend, my first love, we’re in the same class with seats close to each other, you have a cute face, a ponytail, D-cup breasts, and even a massive ass as a hidden bonus.

You’re a perfect, yakuman-level fap material. Not using you would actually be rude.

I can swear to God — I will probably use Akazaki Natsuki as fap material for the rest of my life.

Even if I fall in love with someone else, even if I get a girlfriend, even if I marry another woman, I’ll never be able to forget you.

“If you are, I’ll tell my Inspector Papa and make sure you get real prison time!”

That’s way too harsh for a private punishment.

Inspector Akazaki, I pray that your sense of justice doesn’t waver just because it’s your beloved daughter.

“Back to the topic — why did you give Madoka such dangerous tools?”

“Because my cute childhood friend asked me to. I was just helping her out.”

“You gave her criminal-level stuff just because she asked!?”

“Yeah. Madoka and I are childhood friends and besties, after all!”

…That’s what she just confessed, Inspector Akazaki.

She showed zero remorse and spoke with complete confidence.

This girl might be a natural-born criminal at heart.

“Still, Madoka really has terrible taste. Liking a brother like you? She must be out of her mind lol.”

You probably shouldn’t call your best friend crazy.

“Ahh~ If only I was as cute as her~”

“What would happen if you were cute?”

“What lol? Are you finally getting interested in me lol?”

“Just tell me already. Stop dragging it out.”

“Well, whatever. It’s not like it hurts me if you know… Remember how I said I like someone?”

“Yeah.”

“That person is Tachibana-kun from the soccer club.”

“…I see.”

Tachibana is the top ikemen in school and the ace of the soccer team.

Tall, popular, great grades.

Falling for a guy like that must be tough for her.

“There are way too many beautiful girls in this school. Especially Kaede and Haruko — they’re on a completely different level. So I end up thinking ‘someone like me could never…’”

Natsuki let out a big sigh.

It was unlike her, and I didn’t like seeing it.

I can understand feeling inferior when compared to Midorigawa or Momose Haruko from the tea ceremony club, but still…

“Personally, I think you’re cute enough to be on the same level as Tachibana… so don’t get so down.”

It was frustrating to push the girl I like toward another guy, but I couldn’t stay silent.

These words came straight from my heart.

“Eh, what? Are you trying to cheer me up lol? Gross lol. Besides, your personal opinion doesn’t matter at all lol.”

She laughed at me mockingly.

“…Tch. I regret trying to cheer you up.”

“Ahaha, better luck next time lol.”

Well, whatever the reason, she smiled again. That’s good enough for me.

Because the moment Akazaki Natsuki looks the most beautiful is definitely when she’s smiling.

The same smile I once fell in love with…

“You should keep smiling all the time.”

“Eh?”

“Sighing doesn’t suit you. If you have time to sigh, just laugh like an idiot without thinking. Your only real weapon is that smile, after all.”

I’m sure even Tachibana would turn around if he saw your smile.

I guarantee it.

After all, I’ve been captivated by that smile for nearly ten years.

“Eh? What’s with you today lol? You’re being super creepy with all this support lol… Oh, are you planning to swoop in after Tachibana rejects me and I’m heartbroken? Gross lol. Your way of thinking is seriously disgusting lol.”

I honestly didn’t have that intention, but I guess I can let her think that.

If it helps relieve some of her stress, I can tolerate being insulted.

“You really have been consistently gross since we were kids lol. Ahaha.”

After all, her smile when she says that is worth that much to me.

Clatter.

Something that looked like an electronic chip — possibly a GPS transmitter — fell between her desk and my chair.

“Ah, the GPS I was supposed to attach to Kaede for Madoka fell. Can you pick it up?”

It was definitely a GPS.

It seems my little sister and my childhood friend are dangerous individuals plotting to put GPS trackers on JKs.

“Here.”

While still seated, I reached down toward the chip on the floor. Naturally, my gaze lowered.

I slightly raised my head and, taking advantage of the fact that it was hard to see from the back seat, glanced toward Natsuki’s crotch area.

I saw it!

Through the slight gap between her slightly parted thighs, I clearly caught sight of lemon-yellow fabric.

Hell yeah! Tonight’s fap material is secured!!!

There really is something special about jerking off to your childhood friend!

“…Hey, I can feel your gross stare, so just so you know — I’m wearing ‘fashion panties’ right now. Too bad~ lol”

Huh? What is this idiot saying? Has her brain finally boiled?

Whether they’re real panties, fashion panties, or even a swimsuit — if they’re under a skirt, it doesn’t matter to a guy.

If I can see fabric under a skirt, that’s already “panties” and “fap material”!!!

Thank you, Natsuki-san.

Thanks to you, tonight’s masturbation session is going to be amazing~ Dehehe♡

※ ※ ※ ※ ※ ※

Right when I had just gotten out of the bath and was about to use Natsuki as material for a quick fap session in my room, I unusually received a RINE message from Natsuki herself.

『You free right now?』

『No, I’m busy.』

『What are you doing?』

『I was just about to jerk off to you lol♡』

『Gross! Don’t report that to me!』

『You’re the one who asked.』

After that, I was forced to listen to Natsuki’s love troubles (which were mostly just one-sided complaints) for a while.

Basically, she wanted to vent about trivial things she couldn’t tell her other friends, and I happened to be the chosen target.

『One-sided love is tough, huh~』

『…You’re saying that to me?』

『Ah, sorry lol. You’ve been in one-sided love with me forever, right lol』

『I’ll kill you.』

『Scary lol. Don’t get so mad lol』

Well, this kind of exchange is basically just pro-wrestling banter between us.

『Hey, how did you get over your one-sided love?』

『Get over it?』

『I mean, how did you come to terms with your feelings?』

『I didn’t.』

『Eh?』

『I haven’t come to terms with anything. You can’t easily control the feeling of liking someone. Besides, if it’s something you can just suppress, then it wasn’t real love to begin with. The fact that one-sided love hurts means you like them that much. So I don’t want to run away from that pain, and I don’t want to deny those feelings.』

『Long text, gross lol. You sound like a fast-talking gross otaku lol』

This girl’s ability to provoke is way too high…

『But yeah… I guess it’s fine to just like someone.』

『Yeah, at least that’s what I think.』

That’s right. No one can stop the feeling of one person liking another…

『Thanks. Thanks to you, I feel a little better.』

『You’re welcome. Then I guess I’ll “feel better” tonight using you too♡』

『Don’t report your gross plans to me!』

『Hehehe lol. Sorry lol. Dehehe♡』

If this helped relieve even a little of Natsuki’s frustration, then being her childhood friend was worth it.

Ping♪

Hm? What’s this?

Natsuki sent me a single photo.

『This is a photo I took when I went to a live show with friends the other day. Cute, right?』

So cute!!!

Indeed, Natsuki’s smile in the photo was shockingly adorable, but…

『What about this one?』

『Consider it thanks for listening to my complaints. You must be happy to receive a photo of your beloved Natsuki-chan lol』

『…Can I interpret this as you providing me with fap material?』

『…Well, once I’ve given it to you, how you use it is your business. …But only once in a while, okay?』

Once in a while…

『Is once a day safe?』

『Isn’t that pretty heavy use?』

※ ※ ※ ※ ※ ※

There were many things I thought about regarding today’s events, but I decided to throw away today’s used tissues — the ones I used while thinking of her — into the trash can in my room.

Praying that her Inspector Papa never finds out, I fell into a deep sleep, surrounded by 16 surveillance cameras.