Chapter 143: Between the Blonde Sister and the Black-Haired Sister, Who’s Hotter? [R-18]

I pushed the clinging Stella away and said, “This brother isn’t doing it with either of his sisters.”

“That’s not what I meant.”

She should know what to pester me about. Is it really right to ask your older brother which one of his sisters he’d rather have sex with?

“Hm? Honestly, who do you think would be better to do it with, Orabeoni?”

A folktale came to mind. Which ox works better?

The story was about the great minister Hwang Hui, who, while traveling incognito, witnessed a farmer plowing a field with a yellow ox and a black ox…

When he asked the farmer which of the two oxen worked better, the farmer came close so the oxen couldn’t hear and whispered in his ear.

“The yellow ox works better…”

So, according to this folktale, Stella is better at sex…

No. Fuck. That wasn’t the moral of the story, was it? Where did my brain get so twisted?

“I love you both.”

“Orabeoni~~! Don’t avoid the question~!”

“I love you too, Oppa~.”

Squeeze.

Overwhelmed by Serena pressing her breasts against me, I realized the whole truth.

The farmer knew all along that the black ox worked better, but he’d said that to spare the yellow ox’s feelings…

“Orabeoni, I’m sorry for what I said yesterday… I was being needlessly proud… but the truth is, I really, really love you…”

That was just a clever ploy. In reality, the farmer was a master of fact-checking.

“Oppa, want to touch my breasts while you think about it?”

…What does “working better” even mean? The yellow ox might be better at teamwork, but in terms of physical aspects—pure ability—couldn’t the black ox have the upper hand?

Even in my confusion, I touched her breasts.

Grope, grope.

“Serena’s are too big. Wouldn’t a baby get tired and cry while trying to eat from them?”

Despite Stella’s diss, Serena had the composure of someone who has it all. Having already monopolized my attention with her breasts, she didn’t get angry at all.

But it was I who reacted to her words.

“Stella.”

“…What…” Stella replied, a little sullenly.

“Don’t do that. You shouldn’t put others down.”

“…”

To soothe the hurt Stella, I hugged her tight again and gave her a kiss.

After receiving my kiss, Stella looked at me with the kindest eyes in the world and said, “Chu… Churup… I’m sorry, Oppa…”

“Apologize to Serena.”

“I’m sorry for calling you the owner of breasts that would make a baby cry while eating…”

“Huh? I’m fine…! I’m sure Oppa will have many new sisters-in-law and many children, and it’s better if I can feed them a lot…” Serena said with a shy smile.

She’s already thinking about feeding the babies of my other wives?

It struck me anew what an incredible heroine Serena was. Not just anyone gets called a hexagonal onahole.

“It’s always like this, so I’m the only one who feels inferior…”

“Haha…”

I knew what she meant. Stella must feel impatient and hurt competing against Serena, a battle she couldn’t win from the start.

“Did you two make some kind of bet while I was gone?”

“A contest… to see who gets pregnant first.”

“…”

“…”

“Oppa. Wake up… Ugh… Really, does your pregnant little sister have to come wake you up in the morning? It’s morning, baby daddy♡”

“You damn pervert Orabeoni, are you happy your little sister is having your baby~? I’m happy too♡”

…A dizzying fantasy flashed through my mind.

“And… Serena, you think the same way?”

Serena couldn’t meet my eyes and lowered her head.

“Y-Yes…”

…My body felt hot. It wasn’t just because Stella was clinging to me.

“What are you going to tell your mother?”

“We’re all grown-up adults now… I think we’re old enough to take responsibility.”

“Still, as a family…”

Stella whispered, peppering my lips with soft kisses. “The lines that family members should keep… we’ve already been crossing them for a while, haven’t we, Orabeoni?”

That hit a nerve.

Just today, hadn’t I been groping Serena’s breasts every time she came near me? I did it because I just assumed she’d let me touch them…

As the mood suddenly turned serious, Serena spoke in a high-pitched voice. “A-And besides! You know? The 300,000 Coins you gave us is almost all still there…!”

“…If that’s not enough, Serena and I can earn more! We’re more than capable!”

“Well, it’s not like we have to get pregnant…”

There are countless ways to avoid pregnancy. It only happens because we don’t try to avoid it… Is it an act for simple sexual satisfaction, or an act to bear the fruit of love? The nature of the act changes depending on its purpose.

But having this discussion in the first place was weird. It made no sense.

And yet, we were fitting together the pieces of a realistic puzzle within this strange conversation. My sisters and I could feel our bodies heating up in real time.

We were definitely having the same fantasy right now!

“Just a moment ago you were fighting over who’d go first, and now you’re appealing to me together so nicely?”

Stella shyly lowered her gaze.

“M-Me and Serena have always gotten along, you know?”

“This isn’t something to be decided lightly. It’s more serious than you think.”

I had no choice but to say what an adult should.

“If the skinship makes you uncomfortable, tell me. I’ll stop.”

“It’s not uncomfortable! Not at all!” Serena said, waving her hands frantically.

“I want you to keep… relieving yourself. With my body…”

“Sex is another matter.”

Just yesterday, I got my girlfriend and her mother pregnant, and now I’m going to get my sisters pregnant too…

Well, from a third party’s perspective, it might seem plausible.

But impregnating my sisters was a problem in a slightly different category.

“If my girlfriend gets pregnant, it can be a blessing, but if you two get pregnant, our whole family will be shamed. This isn’t something to be decided on desire alone.”

To be honest, having a shotgun wedding baby with a female academy student was also grounds for problems…

“Because I have a duty to protect this family.”

“Even if we’re step-siblings…?” Stella asked plaintively, kissing me again and again. To think it would be Stella, not Serena, clinging to me so desperately in this situation.

My heart ached, too.

Since we aren’t related by blood, both Serena and Stella would surely give birth to healthy babies if they received my seed…

Physically, we were a man and women in our prime. If we decided to get together, sparks flew just from locking eyes.

“Because we’re step-siblings. All the more reason… If we slip up even once, there are no reins to hold us back, right?”

“Yes…”

“Since we aren’t related by blood…”

…Using that as the perfect excuse, we’d probably have a ton of sex, wouldn’t we?

“Let’s take some more time and think about this seriously. Alright?”

“Okay, Orabeoni…”

As expected, Stella listened to me well.

After barely managing to fight off my sisters’ temptation, I returned to my room to find En waiting for me.

“Ugh, En…”

“What is it? Feeling guilty about something?”

“Not really… I only said the right things.”

En chuckled.

“…While grinding on Serena’s ass.”

Kh…!?

“For someone who knows full well that minor problems aren’t even problems because this is an ‘eroge,’ you play the role of a realistic older brother quite well, don’t you?”

“Wh-what are you trying to say?”

“Give up this futile resistance and just be happy having happy-love-perverted-impregnation-sex with the explosively sexy heroines!”

…Afraid my sisters on the first floor would hear those words, I locked the door tight.

Is she a perverted terrorist? What the hell?

“I’m telling you to go around knocking everyone up based on pure desire. This was always that kind of game! Why do you think it’s called Onahole Academy?”

“I’m already doing that enough!”

“Then why the sudden change in words and actions? You did it just fine with Yuuna’s mom!”

“My sisters are special…”

Yes, I knew it too. My sisters’ affection for their brother wasn’t something that could be stopped just by trying.

“How long will that tiny bit of reason last~?”

I grabbed En’s cheeks and pulled them sideways.

“Habyub!?”

“I’ll hold out if only because of you, you little brat.”

En rubbed her reddened cheeks and said, “Sang-hyeok, you’re underestimating Serena too much.”

“Underestimating her?”

…What was she talking about?

“You’ll find out soon! You noob♡”

The goddess of eroge left, speaking as if she could see the future clearly.

What the…?

‘This time, En is right…’

Onahole Academy is an eroge. A very vulgar one at that.

I knew that having impregnation sex with my sister wasn’t a big deal here.

Even the harem I’d built while attending the academy or getting two of my friends’ mothers pregnant would be a complete mess if applied to reality.

Still, it was true that I hesitated to cross that final line.

Because a stepsister is still a sister.

Nothing happened that afternoon.

I was laying low, but it also seemed my sisters had something to think about after my non-rejection rejection. They didn’t visit my room that night.

Had there ever been a single day like this since I transmigrated?

Amidst the bizarrely wholesome atmosphere, the morning of my third week in Onahole Academy began.

The three of us filled our stomachs with the warm breakfast Serena had prepared and got ready for school.

“I’m leaving first, Orabeoni.”

“No kiss?”

Stella blushed slightly, came over, and kissed my cheek.

Peck♡

I was worried she was keeping her distance after what I said yesterday, but it seemed everything was back to normal.

“I’ll help Serena clean up a bit and leave last.”

After Stella left, Serena and I stood at the entrance. As I watched Serena put on her school shoes, I recalled En’s words.

“Sang-hyeok, you’re underestimating Serena too much.”

Underestimating her? What was I missing?

Today, the thighs under Serena’s uniform skirt were a little eye-catching. White, translucent skin… very hot, fleshy thighs…

She wasn’t wearing her usual exemplary pantyhose, was she?

‘…White thigh-high socks…?’

Serena? Why?

As I was thinking that, Serena turned around, and our eyes met.

Serena was in a state of being extremely… high. As if something incredibly exciting was about to happen.

Her eyes were sparkling, as if she was finally facing a moment she had long, long anticipated.

“Oppa.”

I flinched, thinking I’d been caught staring at her socks.

“Uh, yeah?”

Serena lifted one side of her skirt herself.

“…Purple today♡”

Gasp. The panties were the least of the problem!?

Just by lifting her skirt, the area of exposed bare skin expanded overwhelmingly, revealing her lush thighs and pubic bone…!

“Don’t you remember? You’re the one who told me to wear them.”

I remembered. Serena, on her way home after buying a pair of flashy, tiny, and risqué string panties that no academy student her age should own.

Serena held the string of the underwear between her fingertips like the fuse of a bomb, touched her cheek with a finger, and smiled.

“Oppa. Are you watching?”

“Y-Yeah…”

I’m… watching…

“What do you think will happen if I let this go?”

If she lets go… if she lets go… they’ll come off, and her pussy will be exposed, right…?

The underwear string Serena gently pulled up was precariously weighing the fate of the underwear covering her pussy.

“…You. Were you planning to go to the academy like that?”

“Yep! Because I wanted you to be energized all day by the knowledge of my underwear.”

“Forget about me, what about other guys? They’re bound to see a little, aren’t they…”

Serena narrowed her eyes, her smile overflowing as if she found me unbearably lovely…

“I’m being especially bold today, so they might see ‘more than usual.’ The skirt is short, so when I’m climbing the stairs, another guy might accidentally see the underwear I bought to show you…”

“…”

Don’t tell me… is she provoking me…?

“Don’t worry, Oppa. My breasts, my whole body from head to toe… it doesn’t know any man other than you.”

Thump. Thump. Thump.

With my cock standing ramrod straight, I slowly approached Serena.

“But if you don’t claim me, Oppa… I’ll have to marry another man someday, right? If any guys start hitting on me starting today… I’m thinking of getting to know them, little by little.”

“What? What do you mean, get to know them?”

“I’m not at an age where it’s strange for me to date, am I? At home, I’m your little sister, but outside, I’m just a female student who wants to date…”

What kind of trial was this?

En had asked me once. Could I endure it if a heroine got involved with another man?

Why is a heroine a heroine? Could I accept something like that as if it were reality…?

“I’ll probably get hit on a ton today, right? Wearing such flashy underwear… my top might even be see-through.”

…See-through.

Up close, the underwear was definitely eye-catching. Whether I liked it or not, I was forced to be conscious of Serena’s breasts. If her underwear were to be visible through the gap between her buttons, the vivid purple would pierce right through my eyes.

“What if guys flock to me and I get taken a lot? Ah, I’m talking about my number…♡”

This girl…

So that’s why her eyes were sparkling! She was excited at the thought of seducing her brother with a lewd script!

“Among all those guys, I’m honestly not confident I can tell who would see my heart and want to date me purely…”

“Serena.”

“I guess I’ll just have to date them and learn with my body, right?”

Serena tied her underwear string and turned away. I grabbed her from behind as she was about to leave for school.

“Don’t go.”

“Ah, Oppa…”

“…Don’t go to school today.”

“Okay. I will.”

I was surprised by how readily she agreed.

“I won’t go if you tell me not to, Oppa.”

…Ah. I was completely caught.

The moment I revealed my true feelings, the mask became meaningless.

Some adult I was.

Relieved, I ground my cock against Serena’s big ass and frantically groped her breasts.

This was it…!!

“Ngh, ah.”

“Serena… Serena…”

“Yes, I know. Ah… They’re Oppa’s exclusive breasts… so don’t worry…?”

“Don’t go anywhere today.”

I grabbed Serena, who was all ready for school with her bag on, and took her to my room.

Back in my student days, when you started to run past the time you were supposed to leave for school, the world couldn’t be quieter.

In that morning air and pouring sunlight, on a morning right before being late…

“I lost. Serena… I want to have impregnation sex with Serena…!”

The older brother who had been saying “what an adult should say” was now clinging to Serena’s lush, sensual body, grinding against her.

“Oppa, kyaa…”

She smiled with half-embarrassment and half-joy, entrusting her body to me.

“The truth is, I want to do it! I fucking want to do it with Serena! Serena…! I want to cum in Serena’s pussy!”

“I know, I know… Hyaang… Oppa… I’ll let you get your little sister’s pussy pregnant, so calm down…♡”

Crash.

Serena’s bag hit the floor, scattering her textbooks.

The purple string panties and bra I had forcibly ripped off her were strewn carelessly on top.

I pulled the now-pantyless, braless, uniformed Serena onto the bed.

Her brother was manhandling her, but Serena didn’t resist at all…

Instead, as if to help, she got on her hands and knees beautifully and lifted her ass.

Hwaak…

Her incredible ass, which her short skirt couldn’t possibly hide, was right before my eyes.

Pants down, erect cock out.

All the while, Serena gently swayed her hips from side to side♡, moving as if to guide my angry cock.

“Sorry for making you feel unpleasant, Oppa♡ Let’s get comfortable with your little sister’s pussy, okay?”

“…And this is from the Serena who used to get spanked by me…!”

How dare you? How dare you scheme against your brother?

“You want to be punished by my raw cock?”

Slap, slap♡ Slap, slap♡

As I slapped Serena’s moist little-sister pussy with the head of my cock, she pushed out her butt, not knowing what to do.

“Like that time… are you going to squirt deep inside your sister’s womb with your hard, gallant cock?”

Grip.

I grabbed Serena’s ass, holding her firmly in place.

“That was a mistake. But…”

Grabbing Serena’s ass?

What was I trying to do…? Was I about to shove my erect cock into my sister’s pussy and fuck her like a dog?

Just as I let go, flustered, Serena gently swayed her hips from side to side.

“Oppa! Those bad feelings that just flared up… it’s not good to hold onto them! Hurry and put them in here along with your cock♡ I’ll meticulously melt them away with my little sister’s pussy♡”

“Serena…?”

“It’s here, Oppa. Don’t think, just let your sister’s pussy drain your cock and let’s feel really good, okay?”

Serena spread one butt cheek with her hand and showed me her pussy hole.

Ah.

Instantly, I put my weight into it and drove my erect cock into Serena’s pussy.

Schlorp♡♡

Squeeze, squeeze…♡

Pressing down on her with my whole body as if to cover her, I sank my inserted cock all the way in with a single motion.

Splurtch♡

“Nngeuk!!”

Tight… Tight…

Once it was in, I held still, and Serena’s pussy adjusted to my cock in real time.

The pussy of my lovely and gentle little sister, from the very first day I was transmigrated♡

Finally…♡

What was all that bullshit I spouted yesterday, pretending to be good…?

En probably already knew my words were empty.

In the end, this was it…

I’d rather die than give Serena to another man!

“This time, it’s not a mistake, is it, Oppa…♡♡”

---

Translated By: Meher (RaidenTL)

Please do consider subscribing to my Patreon for requests or to get early access to chapters