Chapter Index

    KWAANG-

    I burst through the dorm room door, nearly shattering it.

    Then I devoured Yuri’s lips.

    “Heup, chuiut, chueup…”

    We threw our sweat-soaked coats from the entrance hall and unbuttoned our uniform shirts.

    Tuk- tuk-

    With movements now completely familiar, we undressed faster than we could tear our clothes.

    “Haup, churut, puhaa…”

    I tossed aside her skirt and ripped her stockings, scattering garments like Hansel and Gretel’s bread crumbs on the path to the bed.

    “We should clean up—”

    “Tomorrow, tomorrow.”

    Obsessively clean people are sick, sick. It’s called obsessive-compulsive disorder.

    I pushed Yuri’s body onto the bed inside the room.

    As if prearranged, we reached behind each other’s backs and unhooked our bra straps.

    Tuduk.

    Two bras fell to the floor and rolled around.

    We threw our sweat-dampened bodies onto the bed.

    “Should we do it, then wash, wash while doing it, or wash and then do it?”

    “All three♡”

    “Correct answer, alchemist…!”

    At home, making love always meant secretly avoiding our family’s eyes.

    But here, it’s just our room.

    We don’t need to watch anyone else.

    Like the old days, we surrendered reason to instinct, letting our bodies intertwine as they willed.

    On the bed, on the floor.

    In the room, in the living room, in the bathroom.

    If there was furniture in sight, we did it on top of it.

    If not, we did it lying on the floor.

    “Your body’s become more…flexible?”

    “Hheut, I’ve been exercising…haeuut…♡”

    Chubut, chubeup-

    The room filled with erotic sounds and moans.

    Body fluids soaked into the ripped stockings.

    The sound of skin rubbing together became increasingly sticky.

    Lost in the exploration of Yuri’s body, when I finally came to my senses, I saw the entrance door before me.

    Unluckily, a knock came just as I was about to cum.

    “Um…is anyone there? I came to express my gratitude regarding Ms. Ista, but I kept hearing strange noises…”

    It was Eve’s roommate, the one I’d met earlier.

    The deed was done, so why the bother…?

    I lifted Yuri with my cock still inside her.

    I hugged her close and walked to the door.

    I opened it just enough to see my face.

    “Shh- Having sex.”

    Her face turned crimson, and I slammed the door shut.

    The hallway outside fell silent.

    Inside the room…

    Only Yuri and my breaths echoed in my ears.

    The damage wasn’t limited to that cadet.

    “U-unni, are you- are you crazy…?”

    “So what? Everyone will know anyway.”

    This world’s sexual sensibilities were quite different from my past life.

    Same-sex love was commonplace, and casual sex was frequent.

    Incest was also common among royals and nobles.

    We aren’t related by blood.

    Anyway.

    “Don’t you want to spread it around that Yuri is mine?”

    “…If you say it like that, hheut-”

    At this point, I didn’t want to pretend to be ordinary sisters.

    I didn’t want to be entangled in those kinds of stories.

    Just as the academy cadets had left noble families for their own reasons…

    We had gone too far, crossed the line. If it seemed like we were here for a passionate private life…

    Wouldn’t we be able to naturally engage in physical contact during work hours?

    Or even more.

    Thinking that…

    Bulkkun-

    My cock swelled a little more.

    And Yuri, did she have the same idea?

    Chuhfeut-

    Her inner pussy tightened.

    “Kkeuhut…”

    “Don’t hold back your sounds.”

    I pressed Yuri’s body against the front door, pulling her arms back forcefully.

    Every time her sweat-soaked chest rubbed against the door, there was a sticky, “jjiguk-jjiguk-” sound. Her back, arched completely, moved smoothly and elastically, contrary to her apparent shyness.

    “Haat, haak- Don’t, plee-ease…”

    “Let’s know each other more, in our relationship.”

    I poked my finger into the corner of her mouth, preventing her from closing it as she constantly tried to stifle her moans. Yuri’s sticky saliva ran down her wrist and arms. Every time I stabbed inside her pussy, her lustful voice erupted.

    “Ah-uh, ahiut- ha-euung…♡”

    The noise wasn’t just from her mouth.

    Chubeup- cheolpeok cheolpeok…

    Her lower mouth was also diligently responding, secreting sticky fluids. Unlike her upper mouth, it was honestly delighted, tightly clamping and squeezing around my cock.

    “Like it…?”

    “Ahiut- I, I like it, oo…♡”

    “Where, how do you like it- haa…!”

    I released her completely loosened lips and grabbed Yuri’s breasts. Every time I pinched and twisted her nipples, her whole body trembled. I demanded that she reveal more of herself to me.

    “U-unni’s…cock, I li-like it… pussy in- inside, it’s st-stabbing…♡”

    “Louder…!!”

    So that my voice could be heard outside, I pressed her limp head against the front door, making sure she could think of nothing else as I drove my cock deeper and more fiercely inside her.

    “Pussy♡ Yuri’s lewd younger sister’s pussyy♡ It feels s-so good— I’m changing to match the shape of unni’s big cock♡♡”

    Without any soundproofing, Yuri finally screamed with all her might. Loud enough for the men’s dorm in the adjacent building to hear.

    Soon, it was my limit.

    “Yuri, I’m about to cum…!”

    “Cum inside me♡ In Yuri’s seed-bearing pussy♡ In my tender womb♡ Your sticky babies- cum inside me, all of them♡”

    Yuri yelled as if completely unhinged. Begging for it, begging for it all inside her.

    Hearing those words made me lose my mind, too.

    A numbness, like paralysis, spread throughout my body, a tingling sensation wrapping around my belly and cock. The inside of my womb swelled, and the semen I’d been building up erupted from within.

    “Hiyaaaaaaaaaaat♥♥♥”

    Bweurrruruut!!

    The sensation of being swallowed by the tip of my glans wouldn’t stop. It continued to spurt sticky cum, forcing past Yuri’s vaginal opening.

    Kulluk, kulluk-

    “Haa, haa, haa…”

    Yuri’s body bounced up as if her waist would snap, then drooped while still hanging onto my cock. She stretched out like laundry on a clothesline, savoring the climax, filled with my cum, before…

    Teolseok-

    …collapsing. I held her close to prevent her from falling to the floor.

    Chuhfeut, jjig-euk- hug!

    As her body moved and my cock was pulled from Yuri’s pussy, the fluid gushed out like a waterfall from the completely stretched opening.

    Pyuchuuuut- ulkkeuk, ulkkeuk-

    “Uut…!”

    I subtly pushed them away with my foot to keep the flow from landing on our shoes. The memory of my past failure, how many days it took to wash the cum from my shoes, flashed into my mind.

    “Hwaaat- hwat, huaaaaa♡♡”

    Yuri, still dazed, remained lost in the afterglow of ecstasy in my arms. I dragged her to the bathroom.

    “Hee-ee…♡”

    She sat limp on the floor. My cum still flowed mingled with her fluids from the crack between her parted legs.

    Seeing that made me hard again.

    “Hee…?”

    “I’m coming to…”

    It seemed Yuri had regained a little strength, lifting her head to look toward me.

    Relief washed over me, since she still had the strength to wash.

    But what she saw wasn’t me—it was my cock.

    “Not yet…”

    “Ehee-e… haaaaaup♡”

    Was it the cleaner’s instinct?

    Yuri licked every trace of bodily fluids from my cock.

    “Uoop, hubuoop, chupuoop, uop— puhaa…”

    When we finally finished the thorough cleaning, we instinctively realized we still needed more.

    “…Churup♡”

    I turned on the hot water in the bathtub and grabbed Yuri’s waist.

    . . .

    “That concludes the statement from the rule-breaker.”

    I described yesterday’s events perfectly, putting on a proud expression. But somehow, the dean put a hand to her forehead.

    “Isn’t the flow of this story a bit off…? I clearly asked about what happened when you went looking for Ms. Eve…”

    The dorm dean’s office.

    Since early morning, we’d been detained for noisy behavior and indecent exposure.

    “So, around 11 pm, we had our first sex, shouting in the dorm entrance…”

    “And we did it maybe four more times in the bathroom, right?”

    “You remember the number accurately.”

    “Not my head—”

    Yuri stroked her belly.

    “I remember it here…♡”

    “I-I don’t care about that kind of detail!!!”

    “That kind of detail?… Your words are too harsh, Dean.”

    Goodness, hasn’t she realized how wonderful my wife, no, my wife is? I glared defiantly at the dean.

    “No, I don’t mean that… The dorm is a shared space, so… ‘that kind of thing’ should be…restrained…”

    “Are you a virgin, Dean?”

    “…Wh-what-”

    Those dowdy glasses and hairstyle. That checked suit and long socks… clearly she has no sense of style.

    She looks several years older than us, but no matter how I look at her—

    “Wh-what do you m-mean…!!”

    “No, it’s just that you call sex ‘that kind of thing,’ and you blush and look away when we talk about it.”

    “According to kingdom statistics, the average first sexual experience is around thirteen years old, so why are you reacting so sensitively to this?”

    Nice job adding that data, Yuri.

    Seeing her face redden even more confirmed that she was indeed a virgin.

    “Th-that’s not th-true…!!”

    “Really?”

    “Of-of course…!! I, that’s to say… se-se- sex…I’ve done that ma-many times!!”

    Yuri’s lips curled upward slightly.

    I’d seen a similar expression before. In the royal palace, when I’d used the chef’s assistance to subdue the senior maids.

    “Many times, you say?”

    “Se… sex… uut- ss-ss…”

    “Sex?”

    Instead of answering, the dean quickly nodded, and Yuri smiled.

    “Then, want to join us next time?”

    “Wh-what…?!!”

    “Puhuht, just kidding.”

    Sometimes, this girl is more frightening…

    That bombshell made the atmosphere even weirder. The dean twisted and turned her legs, her crotch looking like it might have cobwebs. Yuri licked her lips, watching her.

    “Yuri, stop joking.”

    “Yes…”

    “If you’re going to do it, do it alone; it’s too much with you joining in.”

    Peo-eong-

    A sound like something boiling over erupted from the dean’s face, which was as red as a tomato.

    “Ah, anyway! Refrain from such acts in the dorm! That’s all! Dismissed!”

    She gave us a warning and escaped without taking any further action.

    “Going to masturbate?”

    “Seems so.”

    We stood up and left the dean’s office.

    Something heated was felt from the gazes of the cadets leaving the central entrance of the girls’ dormitory. Their eyes met ours; they quickly averted their gazes and hurried away. Some openly rubbed their crotches over their skirts while saying hello.

    It was a bit excessive.

    “Let’s be more careful next time, unni.”

    “Right. We’ve sufficiently done the initiation, so from now on, we need soundproofing.”

    After fixing our clothes, we headed toward the academy.

    Dreuruk.

    When we arrived at the classroom, Eve was, as always, dozing, looking out the window. The memory of last night, not the sex with Yuri, but the previous night’s act of searching the entire capital for Eve, washed over me. I felt a little angry; a little pity as well.

    The findings of our search, Eve’s current life. In the daytime, she studies at the academy; at nighttime, she takes on quests from the adventurers’ guild and goes hunting.

    She’s enduring a hellish life in this strange city.

    Yuri, whose painful memories have faded, and I, who have no such memories. For us, who lived luxuriously in the royal palace for at least ten years, Eve’s difficult life was hard to fathom.

    Saying we understood would be arrogant; saying we didn’t would be neglectful. Unconditionally pitying her would be disrespectful to her.

    “Is there…no way?”

    “We’ll find out from now on.”

    I approached Eve at a leisurely pace.

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