Chapter 2: Diagnosed as a Landmine Woman by Love Psychology, Onee-chan Suddenly Turns Sweet
The instant the sound at the front door signaled Yurika’s return, the nervous tension Yuu had been holding onto all afternoon surged to its peak.
Up until now, he had repeatedly been caught off guard by Yurika’s possessiveness and intense jealousy. There was the time she misunderstood and struck a friend, thinking Yuu had been stolen away; or the time she broke down sobbing, convinced he had gone on a date with a classmate.
Faced with the approaching arrival of his jealous older sister, Yuu waited in fearful anticipation.
(Ugh, terrifying... She won't just burst into tears out of nowhere, right? I just set her off yesterday when Suetsumu-sensei hugged me, too. A-At any rate, the only thing to do is reassure her by telling her she’s the only one I love.)
Click—
The living room door opened, and Yurika stepped inside.
“Onee-ch—”
“Yuu-kuuuuuuuun!”
“Guh! Coming at me like that?!”
Tackled full force by her embrace, Yuu scrambled to adjust to the unexpected assault.
With Yurika clinging to him with all her might, her bust and everything else pressed against him with overwhelming pressure.
“C-Can’t... breathe...”
“Yuu-kun! Yuu-kun! Yuu-kun! Do you really want to kiss young girls that badly?! Your big sister does it with you every day, doesn't she?! You pervert, Yuu-kuuuun!”
Straddling him, she squeezed him tight in an all-out hug with every fiber of her being.
“Onee-chan, listen to me! That was just Yuugiri-san jumping to conclusions!”
Determined to reassure Yurika, Yuu wrapped his arms around her and squeezed back hard.
“Yuu-kun...”
“I’ve told you so many times. I love you, Onee-chan. I have zero interest in other girls.”
Yuu made his feelings unequivocally clear. He would never fall for anyone else.
“Really? You won't go anywhere?”
“Yeah, I’ll stay by your side forever, Onee-chan.”
“Thank goodness.”
Smiling with evident relief, Yurika gently held Yuu close.
It seemed the misunderstanding had been cleared up.
“Whew... I was so worried. I thought you were going to break into tears like you used to.”
Yuu recalled the times Yurika had wailed at the top of her lungs, only to get scolded by their mother.
“G-Geez! Yuu-kun, you meanie! Your big sister has grown into an adult, you know. Forget about things that happened so long ago!”
Yurika pouted, sticking out her bottom lip in mild petulance.
The anxiety of unrequited love that had plagued her in the past was gone. Now, their feelings were bound together by mutual devotion.
With a bond this strong, the appearance of a new girl or two was hardly enough to shake it—though at times, it certainly seemed plenty shaken.
“Well then, shall we go?”
“Huh? Where?”
Without understanding what was happening, Yuu let himself be led along by the hand.
She pulled him straight into her bedroom, pushing him down onto the bed.
“Hm? Wait, what?”
Click! Clack!
Without a shred of mercy, toy handcuffs were slapped around Yuu’s wrists, securing him to the bedpost with both arms pinned overhead.
“There. Now you can't run away. Absolute obedience!”
Beaming with a radiant smile, Yurika casually dropped an outrageous declaration.
Yuu was completely at a loss.
“Um... what is the meaning of this?”
“Punishment, of course.”
“Wait............ what?”
He had thought that with their hearts reconciled, the matter was settled. Yet Yurika was fully primed to administer discipline.
“Wait, isn't this the scene where the misunderstanding is cleared up and our bond grows stronger?”
“Yes, and knowing how you feel makes me incredibly happy. I know how much you love your big sister, Yuu-kun. Just like I know about you secretly trying to sniff your sister’s underwear—”
“Gaaah! Whaaaaat?! I wasn't sniffing them! How do you even know about that?!”
Yurika had deliberately left her underwear lying around in plain sight just to observe his reactions from the shadows—a tactic lifted straight from Yuu’s collection of ecchi manga.
Every single time, despite being assaulted by the overwhelming urge to take a deep whiff, Yuu had barely managed to hold out, desperately fighting the temptation to pick them up.
Watching Yuu struggle with a racing heart had been Yurika’s source of private amusement and excitement.
“That was a trap?!”
“Uhehehe♡ Yuu-kun, you pervert.”
Laying bait with freshly worn underwear made her a terrifyingly cunning sister.
“If you already know that, then why the punishment?! You know how much I love you!”
His mad devotion to his sister was already fully laid bare. To the point where he considered anything she wore to be an absolute treasure.
“Because I just want to punish you, obviously! Tehee♡”
Sticking out the tip of her tongue, Yurika struck an adorable pose. She simply wanted an excuse to punish him.
“Don’t give me that ‘tehee’! You’re refreshing in just how utterly degenerate you are!”
“Besides, if you’ve got too much pent up, Yuu-kun, your sister gets worried. I have to milk it out properly.”
“I’m pretty sure I just heard a completely unacceptable statement!”
She had crossed into territory unbecoming of an older sister.
(Yuu-kun... I trust you. But other girls are aiming for you. I really do need to discipline you with strict training♡ I’ll manage your releases for you♡)
Yurika’s lips curled into a lascivious, perverted smirk.
“You can’t do that! That’s breaking the rules! You’re crossing the line! If we cross the line the second our parents leave, I won't be able to look them in the eye!”
Attempting to reason with Yurika as she descended further into perverted-sister mode, Yuu relied on his own earnestness as the final line of defense.
“Geez, fine then. I’ll go easy on you.”
Quite what “going easy” entailed remained a mystery, but Yurika climbed on top of Yuu with a soft grunt.
It was that position—the one where her rear was aimed squarely at his face.
“Whoa, this again?! Your butt is way too close! I’m gonna see everything!”
Still wearing her work suit, her short pencil skirt had hitched up, bringing her underwear perilously close to full exposure.
On top of that, she was pinning Yuu’s face between legs sheathed in black stockings worn all day—an all-out fetish assault. The mingling scents of sweet perfume and sweat produced an intoxicating, overwhelmingly destructive fragrance.
Squish!
Maintaining that position, Yurika lowered her hips. Before Yuu’s eyes loomed a massive, voluptuous backside.
“Agh, I’m gonna break. There’s no way I can endure this...”
That alone brought Yuu to the absolute brink of defeat.
This was the ultimate hybrid fetish technique Yurika had devised specifically to break Yuu’s defenses:
The “Near-Contact Butt Drop Attack,” designed to push rear-fetishists to their absolute limit.
The “Muggy Pantyhose Leg Clamp Attack,” tailored to corner nylon enthusiasts into total submission.
The “Plump Thigh Straddle Attack,” engineered to send thigh lovers into pure ecstasy.
The “Handcuffed Absolute Obedience Attack,” thoroughly tormenting those with submissive inclinations.
And the “Genuine Ladies’ Business Suit Teacher Attack,” providing premium service to costume aficionados.
A simultaneous combination of every single one of these—a dreamlike service... or rather, a terrifying punishment.
If Yuu had not held sincere feelings and a sacred vow regarding Yurika, he would have succumbed within a single second.
Yet the assault did not stop there. Yurika still held her trump card: a feather duster. If she tickled his sensitive spots with that, his limits would be shattered instantly. She truly was a demonic older sister.
“Ah♡ Wait! No♡”
Just when complete victory seemed within her grasp, Yurika suddenly began fussing with the hem of her skirt.
“Y-Yuu-kun, don't look so much...”
Flushed red to her ears, Yurika murmured in embarrassment.
She tried to tug the hitched-up skirt back down, but with her legs spread wide, pulling only made it ride up further. The more frantically she struggled to fix it, the more her underwear was put on full display.
With her rear directly in front of Yuu’s face, her most intimate area was on the verge of being scrutinized thoroughly.
Yurika was highly aroused herself, making it catastrophic for him to see her right now.
“D-Don't look. It’s embarrassing...”
“So you actually had a sense of shame after all...?” Yuu observed deadpan.
“Geez, Yuu-kun! What do you take me for?!”
(If you ask what I take you for, an inappropriate, perverted older sister is the only answer.)
Yuu offered the slightly rude assessment in his head, though in truth, he was far from composed himself. Yurika’s every movement was overwhelmingly erotic.
(H-Hold on, Onee-chan! How can your actions be completely degenerate, yet your personality acts bashful like some pure maiden?! Don't hit me with that kind of gap moe!)
Squirming with embarrassment as she desperately tried to fix her skirt only heightened the sensual tension to an unbearable degree.
Between calculated seduction and unconscious eroticism, the synergistic effect rendered every motion and gesture devastatingly lewd.
Having seemingly given up on fixing the skirt, the self-sabotaging Yurika shifted to the offensive. Shielding her private area with one hand, she extended the feather duster with the other.
“Attack commeeence~! Tickle, tickle, tickle~”
“Guaaaagh!”
The ruthless older sister’s attack began, focusing squarely on the tent pitched conspicuously between Yuu’s legs.
“Look, look♡ Does this feel good? Does it? Tickle, tickle, tickle~”
“Ugh, stop iiiit—!”
Just as Yuu felt himself approaching his absolute breaking point, Yurika entered the danger zone as well.
(Yuu-kun♡ Yuu-kun♡ Yuu-kun♡ Yuu-kun♡ Ah, my one and only Yuu-kun♡ I won't give you to anyone♡ Not to anyone♡)
“Haah, haah, haah... Eek!”
Overwhelmed by her own excitement, Yurika lost her balance and dropped her hips directly onto Yuu.
Squish! Smother!
Yuu’s face was buried completely in Yurika’s rear. Her skirt hitched entirely out of the way, her stocking-covered bottom mounted his face in an unyielding, full-contact face-sit.
“Ah............”
“Mmph! Mmmph~~~~!”
Buried in the cleft of her cheeks, Yuu let out muffled cries of distress.
Gasp!
“I-I’m sorry! Yuu-kun, are you okay?!”
Snapping out of her daze upon realizing she was sitting directly on his face, Yurika scrambled off him in a panic.
Yuu’s face was thoroughly soaked with Yurika’s sweat and various other fluids.
“I’m sorry, Yuu-kun! A-Are you all right?!”
“Y-Yeah. Um...”
“It’s sweat! Just sweat, you know...!”
Yurika tried to pass off the dampness as perspiration, but having grown into an adult, Yuu was well aware that an aroused sister’s wetness was not merely from sweat.
“Um, Onee-chan...”
“Y-You don't need to say anything!”
Cutting off whatever Yuu was about to say, Yurika unlocked the handcuffs. Rubbing her inner thighs together, she fidgeted in acute embarrassment.
“Ehehe... S-Sorry about that.”
“Y-Yeah...”
Once both had regained their senses, the sheer mortification of what they had just been doing rendered them completely silent.
They were, for all intents and purposes, a degenerate idiot couple.
(M-My sister’s butt... on my face? W-Wait, her b-butt?! Onee-chan’s plump, tight butt?!)
Just as Yuu was spiraling in confusion, Yurika was panicking internally as well.
(I-I-I sat right on Yuu-kun’s face! Did he notice? He didn't, right? That I was so aroused I got wet...)
(Note: He noticed.)
After a lingering silence, the two looked at each other and exchanged nods.
“Onee-chan, your suit is going to get wrinkled. You should change...”
Urged by Yuu, Yurika slipped off her jacket.
“Y-Yeah... Maybe I’ll take a bath.”
“Yeah.”
Naturally linking arms, the two walked down the stairs side by side. Yurika clung tightly to Yuu, projecting her possessive affection as if declaring she would never let anyone else have him.
Somehow, Yuu ended up dragged straight into the dressing room alongside her.
“Um... Onee-chan?”
“Yuu-kun... want to wash each other?”
To the bewildered Yuu, Yurika murmured the proposal while fidgeting bashfully.
Though her embarrassment had quieted her down momentarily, it seemed the experience had only stoked her desires further.
“I-It’s not my fault! It’s your fault for getting along with other girls and being mean to your big sister, Yuu-kun! Shouldn't you show a little more appreciation for your sister? Y-Yeah, that’s right—I think we’ve been lacking in skinship lately!”
Looking up at him through her lashes, Yurika glanced at Yuu while demanding intimacy.
Yuu was flabbergasted.
“What?! We just did plenty! I feel like we do an absurd amount of skinship every single day!”
“It’s not nearly enough~!”
Despite constant flirting, it was apparently nowhere near sufficient.
Gulp.
Yuu, who had been holding out with iron resolve, swallowed hard.
Alongside a sweet ache deep in his chest, an urge to push Yurika down right then and there welled up inside him. While his love drove him to remain pure, he was constantly swayed by the temptation to surrender to that love entirely.
“Come on, Yuu-kuun~. Let’s get in together~.”
As Yurika pressed her bust against him while clinging to his side, Yuu attempted to mount a resistance.
“O-Onee-chan, you just said today at school that improper relationships between the sexes are forbidden.”
At Yuu’s counter, Yurika puffed out her chest with absolute conviction.
“Of course they are! I am a teacher, after all. As an educator entrusted with other people’s children, I have a duty to supervise my students!”
Yurika was making total sense. She sounded like a real teacher.
“U-Um... what about me?” Yuu asked tentatively.
“You’re my little brother! And the rule says younger brothers owe absolute obedience to their older sisters! Besides, you belong to me, Yuu-kun, so whatever I do is completely fine! Also, this isn't improper—it’s true love, so it’s completely legal!”
By Yurika’s unilateral judgment, it was officially declared legal.
Yuu pictured a life of legality with Yurika.
(A sweet, blissful life with Onee-chan... Head over heels, pampering and flirting every day. Intimacy twice a day. Pure heaven—!)
His thoughts were practically identical to Yurika’s. Though unrelated by blood, they were cut from the exact same cloth.
(W-Wait, hold on! If I let my desires run wild right now and jeopardize Onee-chan’s standing as a teacher... Besides, if I cave in here, my vow to hold out until I become a full-fledged man will be a total lie.)
Yuu snapped back to his senses.
(I’m the one who has to endure. Because Onee-chan is the most important person in the world to me. But... she’s so devastatingly attractive, holding back is impossible! Is this hell?!)
He could no longer tell whether this was heaven or hell.
“Aaargh! That image of your butt from earlier is burned into my retinas and won't leave!”
Overwhelmed, Yuu blurted his thoughts out loud. It was all her captivating backside’s fault.
“Yuu-kun... I-I’d really prefer it if you forgot about that...”
Yurika shielded her bright red face with her hands.
She had only intended to tease him; she hadn't expected to genuinely sit on his face—let alone while completely drenched in sweat and arousal.
Pressing her heightened, sensitive areas right against Yuu’s nose and mouth had left her nearly delirious with guilt.
“I’ve decided! I’ll hold back so we don't cross the line. But I want to make you happy, Onee-chan, so I’ll dedicate myself to serving you. I’ll scrub your back until you’re completely satisfied!”
Ignoring the squirming, bashful Yurika, Yuu suddenly overflowed with motivation.
He wanted desperately to cross the line, but had to hold back. His compromise was to serve Yurika and make her happy—perhaps also out of lingering guilt for having hung out with his female classmates.
“Yuu-kun, sudden hospitality service?!”
“Yeah. Going to karaoke and hanging out with girls made me feel bad toward you, Onee-chan.”
“............Yuu-kun, you went to karaoke with girls?”
Yuu had dug his own grave. A vein pulsed along Yurika’s temple.
Even though she had gone drinking at a welcome party herself, Yuu having fun with other women was entirely unacceptable.
“Uh, crap...”
“You want to play around with young girls that badly, Yuu-kun?”
“N-No, that’s not it! A-At any rate, I’m serving you! Go on in. I’ll follow shortly.”
Leaving Yurika in the dressing room, Yuu stepped outside for a moment.
“Geez, honestly, Yuu-kun... Ah!”
After stripping off her clothes, Yurika realized her usual swimsuit was missing—the revealing black bikini she always wore when bathing with Yuu.
Yurika was thrown into disarray. While overwhelmingly bold on the offensive, she turned hopelessly fragile the moment she was forced on defense.
(Wh-Wh-What do I do?! Without a swimsuit, he’ll see everything! If Yuu-kun gets aroused by my naked body and his raging, grown-up thing... Eek♡ W-Well, that does sound a little exciting, but...)
She was indeed harboring a sliver of anticipation.
(N-No, wait! If I let my lust take over and jeopardize Yuu-kun’s future... Yuu-kun swore to endure until he becomes a proper adult for my sake.)
Yurika snapped to her senses.
(I’m the one who needs to hold back, right? Because Yuu-kun is what matters most. But, but still~ Yuu-kun is so irresistible, enduring this is impossible! It’s pure hell!)
Heaven or hell—the distinction had completely blurred.
Though she constantly teased him under the guise of competition and practically begged for intimacy, Yurika always placed Yuu first. Beneath her demonic veneer lay an angelic older sister.
Then again, she was also an overwhelmingly lewd sister burdened by a body brimming with uncontainable lust.
“Aaargh, what should I do~♡”
“Onee-chan, I’m coming in.”
After some time had passed since Yurika entered the bathroom, Yuu called out from behind the door.
“Y-Yuu-kun, are you really coming in? J-Just the tip would be...”
Click!
Ignoring Yurika’s nonsensical mutterings, Yuu slid the bathroom door open.
“Onee-chan, with this on, I can't see a thing, so it’s fine.”
Yuu had blindfolded himself with a towel. It was his consideration to avoid seeing his sister unclothed.
Since he couldn't see ahead, he had to grope his way forward through the steamy bathroom.
(Y-Y-Y-Yuu-kuuuun!! You covered your eyes, but you didn't cover your thing at aaaaall! That wild, rowdy thing is on full displaaay!)
Yurika screamed inwardly.
Rather than “hiding the head but leaving the tail exposed,” he was in a state of “covering the eyes but leaving the privates bare.”
“Huh? Onee-chan, where are you?”
“T-T-T-Too close! Yuu-kun, that is way too close!”
Groping forward blindly, Yuu approached the crouching Yurika. His fully exposed, erect member swung freely, threatening to graze her face.
“Kyaah♡ Y-Y-Yuu-kun! Too close, too close! It’s huge! It’s so big!”
“Ah, I’m close already? Hold on a second.”
“Not you! That is close! Eeeeek♡”
Amid the frantic commotion, Yuu finally managed to circle behind Yurika.
Rustle—
Yuu’s hands touched Yurika’s head.
“Ah, Onee-chan. There you are.”
“Um, Yuu-kun... do you realize what kind of situation this is right now?”
“Well, you're right in front of me, so I’m going to wash your back now.”
“No, I mean—it’s way too grown-up! Aaaahn♡”
Having caught a direct, unobstructed view of his manhood right before her eyes, Yurika’s eyes were spinning. For an older sister who was aggressively bold in theory, she was remarkably innocent when it came to actual execution.
“Hup.”
Crouching down, Yuu reached out blindly and picked up the body wash.
“Right, you prefer washing by hand, Onee-chan.”
Lathering the soap quickly between his palms, Yuu began washing what he assumed was his sister’s back.
Squish, slide, squelch—
“Y-Yuu-ku♡ Ah♡ No♡ Ngh♡ Ahh♡”
Hearing Yurika’s sultry whimpers, a question popped into Yuu’s head.
(Wait... was Onee-chan’s back always this soft?)
While Yuu assumed he was washing her back, he was actually rubbing her chest and abdomen. Making blunders unconsciously without noticing was Yuu’s signature trait.
Her bountiful mounds were thoroughly kneaded, and their stiffened peaks were gently rolled between his soapy fingers. Having her most sensitive zones fondled by Yuu pushed Yurika straight to the brink of total collapse. The tables had turned entirely; she was now a helpless slave of love.
She certainly hadn't expected that her own insistence on hand-washing being better for the skin would come back to bite her like this.
“Ngh♡ Ah♡ Auhn♡ I can't take it anymore! Yuu-kun, have mercy~!”
“Wait, whaaat?!”
With Yurika reaching her absolute limit, Yuu was completely bewildered.
“Honestly! That was definitely on purpose, wasn't it?! Yuu-kun, you meanie!”
Soaking in the tub, Yurika directed a half-lidded pout at Yuu.
“I’m sorry...”
Having removed the blindfold and picked up the shampoo, Yuu hung his head dejectedly.
Taking advantage of the fact that he couldn't see, he had thoroughly groped Yurika’s body.
Looking back on it, he realized he had done something extraordinarily perverse. He was, without a doubt, a degenerate younger brother.
“Honestly, good grief...”
Though she appeared angry, Yurika was secretly captivated by how adorable Yuu looked when dejected.
(Fufu, honestly, Yuu-kun... Looking so glum just from getting scolded is way too cute! I could watch him like this forever. No matter how much time passes, he stays so innocent, pure, and earnest.)
Once Yuu finished washing up, Yurika spread her arms with a radiant smile.
“Yuu-kun, come here!”
“Huh? S-Sure.”
Yuu’s dejected expression brightened into pure delight in an instant. While it felt suspiciously like being trained with a carrot-and-stick routine, he was utterly defenseless against Yurika’s gentle smile.
“Come on, over here.”
“Yeah.”
Mwah♡
Embracing within the bathtub, their lips met in a kiss. A kiss where everything seemed to melt away. Where all boundaries dissolved into nothingness.
“Mmh♡ Chu♡ Nn♡ Chu♡ Chupa♡”
Intertwining their tongues, they loved each other deeply, passionately—devouring one another, cherishing one another.
It was pure, unadulterated adoration. They had eyes only for their most cherished person in the world—their one and only.
“Nnngh~♡ Mmph, Yuu-kun♡ Love... I love you so, so much♡ Chu♡ Mmh♡”
As Yurika sought to devour him with increasing intensity, Yuu placed both hands against her shoulders and pulled away.
“Onee-chan, that’s enough. We can't do any more than this.”
“Eeeh, more! Yuu-kun, you bully~!”
“We can't. If we keep going, we’re going to cross the line.”
Leaving it at that, Yuu took care not to look at Yurika’s bare figure as he quietly slipped out of the bathroom.
Left behind in the tub, Yurika murmured to the water:
“Bully... You really are a bully... Yuu-kun...”
Her feelings for Yuu were ready to burst at the seams. Love and sexual frustration swirled together into a thick slurry, driving her to crave him to the point of madness.
Naturally, she engaged in plenty of unspeakable, illicit acts by herself right after.
Having finished dinner, the two sat watching television in the living room. Per usual, they were side by side on the sofa, with Yurika clinging tightly to Yuu.
“Onee-chan, it’s hard to watch TV when you’re clinging to me like that.”
“Hmph! I’m not listening to a single word from a bully like you, Yuu-kun.”
Yurika pouted.
“Ugh... your love is so heavy...”
As Yurika’s affection grew increasingly suffocating, the tremors running through Yuu’s lower half showed no sign of stopping.
Chirp-chirp-chirp—
The television was broadcasting a popular program discussing romance psychology and personality diagnoses.
A romantic psychology variety show. Hosted by a popular comedian and featuring commentary from specialists across various fields, it broke down the intricacies of relationships.
“Romance Psychology Research TV! Tonight, we feature the ‘landmine women’ who always fail at love!”
“Oh, this show is pretty fun.”
Yuu leaned in attentively. He had always enjoyed personality tests and psychology quizzes.
“Ba-dum-tss! Coming in at third place for women who fail at romance: the excessively jealous type!”
Stab!
The television’s words pierced straight into Yurika’s chest.
Concealing her agitation, Yurika listened closely to the commentary.
“Here with us is romance psychologist, Professor Nakanosaka. Professor, if you please.”
Professor Nakanosaka, an expert in relationship psychology, appeared on screen.
“As expected, jealous individuals tend to fail in romance. When a woman is overly jealous, men simply want to flee.”
Stab, stab, stab!
Every word struck Yurika with pinpoint accuracy.
It was a stark contrast: Yuu innocently enjoying the show, while Yurika sat stiffly, feeling as though every critique were aimed directly at her.
“In particular, women who get angry just because their partner had a casual conversation with another woman, or because a phone call or text came in, are exceptionally dangerous!”
Stab, stab, stab!
Bullseye.
“Getting upset because a boyfriend went to karaoke is the absolute worst. Everyone needs an outlet to unwind. With a woman like that, the boyfriend can’t even hang out with his friends, leading inevitably to a breakup.”
Slash! Critical hit!
A direct strike to Yurika’s vitals. She had just gotten angry over the karaoke outing moments ago.
“Next, in second place: the overbearing, heavy woman! Those whose entire lives revolve solely around their boyfriend, who constantly demand verbal validation of love, or who insist on sticking to him twenty-four hours a day. This is textbook codependency.”
Stab, stab, stab!
“And taking the number one spot: the excessively controlling woman! This is an ultra-landmine. Those who attempt to dominate their boyfriends are the absolute worst. They operate on the mindset of ‘I love you, so this is only natural.’ It is a guaranteed recipe for a breakup.”
Stab, stab! Pierce! Critical strike!
Every single entry scored a critical hit on Yurika. Clinging to him twenty-four hours a day, constantly chanting “absolute obedience”...
Taking continuous critical damage, Yurika’s HP plunged straight into the red zone.
“Hahaha, that was great. Especially the bit from MC Megurono Iwashi-shishou... Wait, Onee-chan? Is something wrong?”
Yurika, who was supposed to be clinging happily to Yuu while watching TV, was frozen pale as a ghost.
“Huh? Ah, n-no, nothing at all...!”
Her behavior was conspicuously suspicious.
Indeed, Yurika had been struck with profound shock upon realizing that every single trait of a relationship-dooming landmine woman described her to a tee.
(Wh-Wh-What do I doooo?! Every single one of those landmines is meee! Was I a landmine all along?! What if Yuu-kun comes to hate me...?!)
While Yurika clutched her head in private agony, Yuu was simply floating in a warm, blissful haze from being next to his beloved sister.
Oblivious to his contentment, Yurika scrambled to win back his favor.
“H-Hey, Yuu-kun. Want your big sister to rub your shoulders?”
Suddenly turning gentle, Yurika sought to pamper her brother.
“Huh? My shoulders aren't stiff or anything, though?”
“Never mind that, just leave it to your big sister!”
Shifting sideways on the sofa, Yurika began kneading Yuu’s shoulders.
The sister who had been bristling with jealousy and pouting over being kept on hold just moments ago had seemingly transformed into an angel.
Knead, knead, knead, knead, knead—
“How’s that? Does it feel good?” Yurika asked with a gentle smile.
“Yeah, it feels great. But what brought this on all of a sudden?”
“I-It’s nothing. You always do so much for me, Yuu-kun, so I just wanted to pamper you for once.”
Under his angelic sister’s massage, Yuu felt both his body and soul soothingly restored.
“All right, next I’ll clean your ears. Lie down.”
Next, Yurika lightly patted her plump thighs, inviting him to lay his head down for a lap pillow.
“A-A lap pillow?! Gulp...”
Yuu adored lap pillows. In fact, did any man exist who didn't?
(Whoaaa! A lap pillow! A dream lap pillow!)
Yuu slowly rested his head on Yurika’s soft, shapely thighs. Emerging from her loungewear shorts, her bare thighs possessed a firm, supple elasticity and silky skin that felt sublime.
“Uwaah, this feels so good... Absolute perfection.”
Strange, content noises slipped from Yuu’s lips unbidden.
“Ufufu, if it makes you happy, Yuu-kun, your big sister will do anything for you.”
Beaming with delight, Yurika gently stroked Yuu’s hair.
“This is heaven.”
Having his ears cleaned while his head was gently caressed made Yuu feel as though he were ascending to paradise. He melted into complete mush.
Glancing upward, he found Yurika’s face partially obscured by her breathtakingly prominent bust.
(I-Incredible! H-Her boobs... Looking at them from this angle, the scale and beauty are unbelievable! Underboob is the absolute best!)
Thanks to Yurika, Yuu had acquired yet another niche fetish.
“All right, now turn around the other way.”
“Okay.”
Prompted by Yurika, Yuu rolled over. Now positioned with his face resting against Yurika’s soft stomach, the view was equally magnificent.
With his face nestled against her soft thighs and belly, Yuu basked in pure bliss.
(Waaah... Onee-chan’s tummy smells so nice. This really is heaven...)
Overcome with sheer comfort, Yuu’s hand drifted around to Yurika’s bottom.
“Geez, Yuu-kun♡ No naughty hands~”
“Babu.”
He had regressed slightly into infancy. Rather than naughty, he was practically a baby.
(Crap! The comfort was so overwhelming I made a weird baby noise! People rave about the maternal comfort of younger characters lately, but for me, older-sister characters are the only choice! That enveloping sense of security... If this keeps up, I’m going to be completely ruined~)
In short, Yuu simply adored his big sister. As long as he had her, he needed nothing else in the world.
“Fufu, honestly, Yuu-kun, you really are such a spoiled baby♡”
Stimulated by Yuu acting so dependent, Yurika began melting as well. She loved nothing more than having Yuu pamper-rely on her. Their compatibility was flawless.
Rub, rub, rub—
Getting carried away, Yuu nuzzled his sister’s rear.
“Aahn♡ Yuu-kuun♡ That tickles~”
Fidgeting bashfully, Yurika leaned forward, causing her massive bust to descend from above and trap Yuu’s head between her mounds.
Squish, squeeze, smother!
To the left of Yuu’s face were plump thighs; before him was a soft belly; to his right were firm, bountiful breasts. Completely pressed in on all sides, he was entirely enveloped by Yurika’s flesh.
“Mmph, guuuh............”
Wrapped in Yurika’s embrace, Yuu let out a muffled wheeze.
(Aaaah... this is the best...! I wouldn't mind suffocating like this...)
At this rate, Yuu’s cause of death was on track to be recorded as “asphyxiation via burial in older sister’s flesh.”
“............”
Noticing that Yuu had gone completely still, Yurika began to panic.
“Wait, Yuu-kun? Yuu-kun? Yuu-kun, Yuu—”
Bathed in his sister’s soothing, melodious voice, Yuu was on the verge of departing for paradise... permanently.
“Yuu-kun! Pull yourself together!”
“Mmh... Huh? W-Wait... is this... heaven?”
Yuu, who had worn the most peaceful sleeping face imaginable, slowly fluttered his eyes open.
“Yuu-kun, thank goodness! You suddenly went completely quiet, you had me worried sick!”
Peering down at him from above, Yurika wore an expression of frantic concern.
The sheer pleasure had brought Yuu within inches of a literal ascension.
“Ah, right. Your body felt so good, Onee-chan, that I forgot to breathe.”
“Honestly! Yuu-kun, you idiot!”
Their mutual devotion was so far beyond the norm that it had nearly triggered a fatal domestic incident. Idiot couples taken to extremes were truly hazardous.
“Yuu-kun... don't scare me like that. If anything ever happened to you, I...”
“Onee-chan. I’m sorry.”
Yurika looked ready to burst into tears, and as Yuu gently rested a hand on her shoulder, their faces drew close. Naturally, their lips met.
“Nn♡ Chu♡ Chupa♡”
Reluctantly breaking the kiss, Yurika pulled Yuu into a fierce embrace—as if to ensure no one could ever take him, no one could ever touch him, claiming him entirely as her own.
“Yuu-kun...”
Just as the TV program had laid out, Yurika possessed heavier love, deeper jealousy, and stronger possessiveness than anyone. Even when she tried to check herself, her sheer obsession with Yuu made it impossible to stop. It was an uncontrollable tide of emotion.
“Onee-chan? What’s wrong?”
Worried by how tightly she clung to him without letting go, Yuu spoke up softly.
“Yuu-kun... you won't... come to hate me, will you?”
“Huh? Why on earth would I ever hate you, Onee-chan?”
“Really?”
“Really.”
“B-But that TV show earlier...”
Yurika laid bare her anxieties—
“Pfft! Ahaha... Hahaha!”
Hearing her confession, Yuu couldn't hold back a burst of laughter.
“Geez! Why are you laughing?! I’m seriously agonizing over this!”
“Because... haha, Onee-chan... Ahaha, that’s hilarious!”
“Juuuust stop it, Yuu-kun! Don't laugh!”
Even as he laughed, Yuu felt a rush of genuine warmth. His sister agonizing so sincerely over whether he might hate her was overwhelmingly endearing.
“Haha, ‘landmine woman,’ really?!”
“Geez, Yuu-kun, that’s so rude!”
“You’re a cool beauty at school, but at home, you’re sloppy and ridiculously jealous. I guess you really do fit the ultra-heavy landmine description.”
“Aaaaaargh!”
Pat, pat, pat!
Flustered with embarrassment, Yurika playfully pummeled Yuu’s chest.
“Sorry, sorry. You’re fine just the way you are, Onee-chan. Being fiercely jealous is cute too—even if you’re a little scary sometimes.”
“Mmph...”
“Being heavy and possessive is just like you. I love you including all of that.”
“Ngh♡ Th-That’s unfair...”
Having Yuu tell her he loved her left Yurika thoroughly defenseless. That single magic phrase was enough to fill her with pure happiness.
“Geez, Yuu-kun! So your big sister is really fine just as she is?”
“Yeah.”
“Hmph. Well then, time to resume the punishment♡”
“Huh?”
Fully revitalized, Yurika began dragging Yuu toward her room, clearly intending to spend the entire night disciplining him.
“Wait, hold on a second...!”
“No waiting allowed~!”
Yuu had failed to realize: he had just given Yurika’s jealousy official, unconditional clearance.
“You went to karaoke with girls, didn't you, Yuu-kun? To make sure your attention never wanders toward other girls again, I’m going to thoroughly punish and strictly train you all night long~”
(Damn it, I don't know how, but I feel like I just royally messed up...)
Guided directly into Yurika’s bed, a long night was about to begin.
Naturally, he was subjected to an absurd amount of punishment.
Post a Comment