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Chapter 28: Kaju Nukumizu doesn't move; she is just a cute little sister who clings a little more strongly.
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～AM 10:12～
We play games using the living room TV. I sit on the sofa with snacks and cola on the table.
"…"
I thought about wiping my salt-covered fingers on my clothes, but that would be bad manners, and besides, I'm not wearing any clothes right now.
So my eyes go to the tissues.
I reach for one to wipe my hand. But the moment I extend my arm, another monster appears from the side!
"Nn… Ah, mmm."
"Kaju!!"
It wasn't a monster. It was my little sister — no, because it's my little sister, that's the problem.
"Nn… Ah, nn… It's lightly salted."
"It's lightly salted flavor… Hey, with just one hand it's hard to avoid… K-Kaju."
"…——♡"
She adorably takes my fingertips into her mouth, sucking and licking them with wet sounds.
With her small mouth and beautiful lips, yet the occasional glimpse of her lewd pink tongue turns this act from something playful into something far more dangerous.
She licks with a thoroughness that could almost be called obsessive, as if trying to scrape off my fingerprints. Because of the recent intense experiences, I can't help but associate this with a certain sexual act.
Kaju's mouth — my little sister's mouth — no longer looks like just a mouth to me.
That curse has been soaking into me ever since last night.
"Nn… Ah, nna… Reru reee… Ah, nnu, nmyumu, kku… Churu."
"Ah."
My character on the screen has been defeated.
I'm sent back to the safe zone with a message encouraging me to try harder next time. No — which one of us should be trying harder?
For now, I try to return to the game and put my mouth on the straw of the glass Kaju offers me.
The sweetness and carbonation refresh me. While feeling the adorable weight leaning against my side and the slightly feverish, girlish warmth, I pick up the controller.
"…Kaju, hey Kaju."
"Yes, Kaju is right here♡."
She is beside me. The reason those words feel so strongly emphasized is probably because Kaju isn't wearing a single piece of clothing right now.
Even when I try to spend the day peacefully at home so nothing happens, I suddenly notice Kaju is there.
Kaju is naked and keeps clinging to me. She is doing her usual caretaking, just turned up a little stronger, but that's all.
Kaju never tries to touch my genitals with her hands, mouth, or even her hair.
"Big brother, you should change your armor as well as upgrading your weapon. You should fight with an advantage using armor skills. It's important not to waste materials, but holding back too much will make it tough."
"…Yeah."
I return my eyes to the game screen.
Kaju doesn't demand that I look at her.
She really is just staying beside me like always, as Kaju.
"This is bad… seriously."
"Are the snacks bad? Or is the enemy you're fighting?"
"…"
The powerful enemy isn't doing anything.
The struggle, the worry — everything is coming from me.
× × ×
～AM 11:21～
My eyes are tired.
I leave the living room where Kaju is and go to the toilet to relieve myself.
I sit on the toilet seat and do my business. When I finish and try to stand, I realize my hand is reaching for pants that aren't there at my feet.
…I'm not wearing clothes.
I had almost forgotten. If things continue like this, Kaju's whim might erase one of humanity's basic habits.
"…Kaju."
"Onii-sama, did you wash your hands?"
"Of course I did… Wait, Kaju!"
Did I forget to lock the door? Kaju, who should have been waiting in the living room, is standing right in front of me, and now her gaze lowers.
Naked Kaju kneels and brings her mouth right in front of my genitals.
"…In normal cases, a little wetness wouldn't be a problem if you were wearing underwear, but right now you're naked. So Kaju will clean your private area nicely for you."
"Wait… No, Kaju."
Her reasoning is too lewd to understand, yet I can't say it doesn't make sense. In fact, I was just about to wipe the tip a little with paper.
But before that—
…Kuchu… Chu, pu… Reru.
"!"
Wasn't she supposed to do nothing? I thought she would only cling and nothing more would come from Kaju.
"…Nn, uu… Ah mmm, delicious… Big brother's cock is so delicious♡ …Ah, nmu… Ah, mmm… Uu… Nnu, reryu reee… Nn, ppa."
"Kaju, that, just like that…"
I tell her I want to cum. But before that, Kaju's mouth leaves my genitals.
"!?"
"Yes, now it's clean… Even the foreskin is back to normal… Big brother's adorable phimotic cock♡ …Kaju loves it so much♡."
"…W-Wait… Kaju."
"Then let's continue the game… Kaju will watch, so big brother can enjoy it to your heart's content."
"————!!"
She really does nothing; Kaju only clings.
That part hasn't changed. What Kaju wanted was to spend time naked together, clinging. And she won't force anything.
The initiative to start always lies with me.
"…You're such a bad girl."
My little sister's innocent smile.
With the appearance of a pure, gentle girl who knows no corruption, I realize I am terribly aroused.
After committing the taboo, Kaju is waiting with an innocent face, full of expectation.
"Big brother, what's wrong?"
"…"
"Your face looks so scary♡ …When you look at me like that, Kaju feels…♡"
Incest — sexual acts between brother and sister. Kaju is expecting her brother to violate her even after breaking that taboo.
…Ah, haa… Ah, haaa♡ …Nn, ah, aaah♡ …Ah, oooh, ah, aaaah!!♡♡
She can't hide her breathing.
In the hallway right after leaving the toilet — no bed, no sofa, nothing. It's cold, the flooring is chilly. There is no comfort, no mood.
There is only pure immorality.
…Ah, aaah♡ …Nn, ah, aaah!!♡ …Ah, oooh, ah, aaaah!!♡♡
"O-Onii-sama!! …Why are you… staring at Kaju like that♡ …It's scary, you know♡."
There isn't a shred of fear.
With a poker face melted into a lewd,媚びた female expression and her tongue sticking out, Kaju stands there completely unresisting.
From her smooth, hairless slit, love juices flow endlessly, forming a puddle at her feet.
"…!!"
I grab her.
With my own will, I seize Kaju's slender arm and then—
"Kaju… Open your mouth!!"
"Y-Yes♡ …Is that an order?… Ah, aaah!!♡ …Nn, ah… Yes, yesss♡."
With a face full of joy, endlessly scattering lewd breaths, that naughty mouth once again coats my cock with wetness.
In this hallway, what am I doing? If I calm down, I'll surely realize I've gone mad, but I can't stop anymore.
My reason has been severed since midday.
…Kucchu… Jubu, nuryuru.
"Nnu, nnuu, nguuu!!♡♡"
"Ah, kku."
I stroke my little sister's head. Her smooth, silky, impossible-to-grab, beautifully cared-for black hair — I roughly grab it.
I push forward, forcibly prying open her soft lips and grinding my glans hard against the comfortable mucous membrane inside. Feeling the tightness, feeling her tongue on my balls, I fully experience Kaju's mouth with my cock.
Breath escapes me.
I exhale a large, hot breath from the comfort.
Right now, on this day, I finally feel like I'm breathing. The pleasure right now is that good.
…Gucchu, gochu… Guchu, nucchupu, kochu!! …Kuryu, gurryu!! ♡♡
"Nno, ooogoo… Ooo… Nno, oooo!!♡ …Ah, aaah, naaaa!!♡♡"
Half-rolling her eyes, tears flowing, her hands still cling tightly to my waist and refuse to let go.
Kaju isn't resisting. Even while choking and gagging, she willingly accepts the thickness of my glans deep in her throat.
Kaju is genuinely delighted by the irrumatio, and on top of that—
"…Ah… Hi, he♡ …Onii… sama♡♡"
Kaju taps me.
With a gentle force, so light it couldn't kill a mosquito. The hands wrapped around my waist to cling to me are now tapping — signaling "I want more," begging sweetly.
…Guchu, guchu chu!! …Goryu, goryuryu!!
"Nnnnuu!!♡♡ …Ngu, ngubuuuuffuuu!!♡♡!?!?"
Her moans, screams, and raised voice are crushed by the irrumatio and turn into muffled, vulgar sounds.
A low, thick, indecent female cry — yet it is unmistakably Kaju's voice.
The mouth that produces the adorable chirping voice of a little bird who calls me "Onii-sama" is now—
…Guchu, gochu gochu gochu… Gucchu, zucchun!! ♡
…Juru, zuryururuuu!! ♡♡ …Juppu, gupu!! ♡
"Nbu, nnn!! …Nn, nguuu… Kku, ggo, nooo, ggoooo!!♡ …Nno, oooo, ooooo!!♡♡"
I rock back and forth, relentlessly pounding her throat. The pleasure of my cock being milked by the tight constriction of her esophagus, combined with the sweet cries she leaks while suffering, resonates all the way to the core of my cock.
Looking down at Kaju's face as she happily takes my cock deep into her mouth and has it violated, my balls are already burning hot.
"…Sorry, Kaju."
"————!!"
For the first time today, with my own will, I pour my violating ejaculation into Kaju.
Forcing open her throat and pumping straight into her stomach, I release a thick load.
"Nn, nnuuuu————!!♡♡"
Gokyuri, gukyuri — forced to swallow the white fluid, Kaju makes a mess. I feel hot liquid at my feet and the rising scent of a female in heat.
There is no room for my cock to soften while still held in her mouth.
With my nose filled with the terrible lewd smell, I once again pour everything I have. After the ejaculation, the aftercare—
"Nn, nnn♡♡ …Ah, nmu, juruu, kku… Kku, nnu… Kku, nnn~~!!♡♡♡"
…Shororoo, jorororooo!!
Right behind her is the toilet seat, but I ignore it and pour the liquid into the depths of Kaju's throat.
The mouth that clings tightly doesn't spill a single drop — it is a perfect receptacle. Kaju drinks every drop that comes from my cock, and in the end she looks up with a smile and thanks me.
…Cchu, ppu… Kuchu.
"Nn… Kku… Ah, aaah♡ …Nn, big brother♡ …Kaju is not a toilet, you know♡♡."
"…Sorry, but… I couldn't hold it."
My head has cooled a little, and the words of apology come out naturally.
But Kaju makes a slightly lonely face. So I correct myself—
"…Kaju is a good toilet."
"Ah, aaaah!!♡ …Ah, yesss!!♡♡."
"————!!"
Overwhelmed, Kaju trembles with joy. Is she cumming just from words?
"Big brother, I'm worried about Kaju… really."
"Eh, Kaju is fine♡ …Nothing is wrong!!♡ …It's the same as always♡♡ Haa, haaa, nnn!!♡♡ …O, oooo, ooooo!!♡♡."
…Bikku, biku biku biku!!
The wet floor, Kaju endlessly exposing her excitement.
Seeing the disastrous wetness on the floor, I'm glad we weren't wearing clothes.
If she had foreseen this, I'm impressed as her older brother by Kaju's foresight.
But even so—
"Kaju, can you walk?"
"O-Onii-sama♡ …C-Carry me♡♡."
I don't know how many years it's been. Or maybe it happened fairly recently.
I carry Kaju, whose legs have given out so she can't stand. Even with my weak strength, I can lift her light body, and I feel relief that Kaju's usual small weight hasn't changed.