Introduction to Incest Studies (1)
The bowl slammed onto the old folding table with a loud thud.
"Lena… If you keep doing that, you're going to break the table…"
"Hmph! Let it break! Oppa earns so much money now, so we can just buy a new one, right?"
"Yeah… That's right!!"
After bringing home ten million won from Orc Delivery, I suddenly found myself watching my step-sisters' every mood starting the very next morning.
Fuck… Why the hell did my step-sisters turn into filthy communists in just one week…
It was impossible to believe.
The same sisters who used to cling to their Orc brother and treat him so sweetly had changed into this…!!
Swoosh—!
Clack!
"Yum yum!"
Even one of the ten sausages they always saved for me disappeared into Leni's mouth.
And she did it on purpose while watching my chopsticks head straight for the sausage…!!
"Urk…"
Was this the proper way to treat an Orc?
At home, my only comfort had been talking with my sisters without any racial discrimination…!
Now I had become an Orc who faced discrimination both in society and at home.
"Yum…"
I held back my tears and began shoving rice into my mouth.
In truth, I understood.
My sisters hadn't become communists.
They had simply… finally faced reality. That their Oppa belonged to the Orc race—a stupid, sex-crazed, horrific species.
If only they were communists… I could have at least converted them to capitalism…!
Still, this kind of treatment after just one day is too much…
They were the same sisters who had sent me affectionate messages filled with heart emojis saying how much they missed me right up until I came home…
Yet the moment they saw me as an Orc, their attitude flipped one-hundred-and-eighty degrees.
It left a terribly bitter taste in my mouth.
That night…
I can't hold back anymore…
It had been bad yesterday, but today was especially worse.
The sweet scent wafting from the two sisters kept teasing my nose.
I have to endure…!
That sweet, fragrant aroma that had filled Iris's room…
Just how sweet it had been…
Throb—!
Before I knew it, blood surged into my cock.
"Chwiiik…"
Goddamn it.
When I stayed at Iris's mansion, the ridiculously comfortable bed had made it easy to calm down this level of arousal…
But the hard floor of our beloved home was far too uncomfortable for sleeping.
Maybe that was the reason.
I kept picturing the clothes my sisters were wearing.
Those short pants that revealed the soft undersides of their asses and the cropped t-shirts that showed their bellies and cleavage aroused my cock even though they were my own sisters.
And it had been like that all day long…
If Iris had been dressed that way, I would have immediately fed her sleeping pills and fucked her senseless. But this was different.
Because I'm not an incest freak.
I had to hold back.
I must endure.
I have to hold back…
Hold… back?
Suddenly, a philosophical question rose in my mind.
The same very important question I had pondered on the first day I possessed this body.
Nietzsche, help me out here.
Was sex between me—the one who had been reincarnated—and my step-sisters truly incest?
What exactly was incest?
And why was it something that shouldn't be done?
Repeated incest narrows the gene pool and makes one vulnerable to various infectious diseases.
The Habsburg family had ended up with hemophilia and lantern jaws from repeated incest.
In other words, incest itself carried inherent problems.
Hmm… Wouldn't it be fine as long as I don't repeat it?
Conversely, couldn't one argue that as long as it wasn't repeated, incest itself wasn't a problem?
By the way, how did I even know this stuff…?
It must have been knowledge I picked up somewhere before.
There was no way this Orc body—with a brain that seemed to be made entirely of muscle—would possess such information.
Now let's examine the moral aspect.
Marriage between siblings would invite finger-pointing from everyone around them.
But I was a real man who didn't give a damn about other people's stares.
Besides, strictly speaking, they weren't my real sisters.
This body might be their older brother, but the mind inside belonged to a healthy young Korean man!
Just as people say the inside matters more than outward appearance, what was contained within was what truly counted.
Therefore, it wasn't real incest.
There was no need to feel guilty.
Okay.
All the proofs were complete.
The logic of my Introduction to Incest Studies was flawless.
I slowly rose from my spot and began surrendering my body to the instincts of an Orc.
You started this…
The moment they realized their brother was an Orc, they ignored me and started giving me the cold shoulder…!
In that case, I would simply act like a real Orc…!!
"Sorry. For having an older brother… no, an Orc like this."
Still, a small sliver of guilt made me flip over the sisters who were sleeping soundly.
Even I couldn't do it while looking at their faces.
A single thread of reason within the Orc's instincts held me back, and…
"Chwik… Chwiiik—!!"
Unable to endure the beautiful sight of my sisters' rear views any longer, I began to move my hands.
*
Something truly unbelievable had happened.
"I'm back~"
The voice of Oppa that they loved so much, heard the instant they returned home.
Lena and Leni.
The twins had finished preparing to greet their brother with bright smiles.
Kyaa~ It's like welcoming a husband home from work~!
They had waited so long for this moment.
They had even told their part-time job they would take a short break until the day Oppa had to go to work again.
Lena and Leni had been thrilled at the thought of spending the remaining time flirting and cuddling with him.
But soon both of them had to freeze their expressions.
This is…
Eclipsia Premium.
The strong scent of perfume pouring off Oppa's body.
Thanks to their fairly outstanding performance at university, the sisters—who worked at a noble mansion—immediately recognized what kind of perfume it was.
Eclipsia Premium.
An ambitious product released by the Eclipsia Group, one of the empire's massive conglomerates.
This perfume, which produced a very mild estrus effect in Orcs, flew off the shelves despite its price tag of one hundred million won.
It had even been created with the claim that "even Orcs would find this acceptable."
It was such a luxury item that some Elves took out loans just to buy it.
And that very perfume was radiating intensely from Oppa's body.
Lena and Leni could only clench their fists tightly.
This can't be happening…
Stop…
"Oppa… why are you only coming home now?"
"Really… what about having dinner with us?"
They didn't want to act this way.
But if they didn't, they felt like they would burst into tears, so Lena and Leni forced themselves to get angry.
"Uh… yeah. O-Oppa earned a ton of money, you know?"
The way Oppa showed them the account balance like it was nothing—ten million won earned in a single week—cut deep into the twins' pride.
Iris Ancard Deposit — 10,000,000
The clearly printed name "Iris Ancard" made Lena and Leni even angrier.
Duke Iris Ancard.
As students planning to join influential families as knights or mages after graduation, Lena and Leni could not possibly be unaware of her.
The Ancard Ducal House had been one of their potential candidates, after all.
In any case, there was only one kind of work that would warrant a noble like her depositing ten million won.
Orc Delivery.
A national project run directly by the empire that provided Elves with dream-like experiences.
Though the name sounded grand, it was essentially a state-operated brothel.
They claimed Orcs weren't selling their bodies but simply acting as rental boyfriends.
Even so, for Oppa to work at a place like that…!!
Lena and Leni could not forgive themselves.
"This is definitely that, right?"
"Yeah… the full service…"
After exchanging glances, the two decided they could no longer leave Oppa alone like this.
"With this much we could buy meat…!"
Unaware of their thoughts, Oppa simply smiled brightly as if he was happy, which only made them hate him more.
Lena and Leni had worked day and night for Oppa.
To think he had come home after flirting with another woman like she was his girlfriend…!!
"Who said we wanted meat!!"
"This dirty money…!! Oppa. Tell us the truth! You were working at a noble's house, weren't you?"
"Or some rich Elf's house!"
No… it might not have stopped at mere flirting.
She was a Duke.
The highest rank among all Dukes.
Power second only to the Empress herself.
Would a woman like that have been satisfied with simple flirting?
It was definitely a million per day…
Oppa had claimed he was doing manual labor that paid two to three hundred thousand per day, but…
The situation made it clear he had worked at Orc Delivery.
Considering the real service that sent actual Orcs cost a million per day, it couldn't have been just flirty conversation. They must have held hands, linked arms… maybe even shared a couple's drink and watched a movie together—!!
Since ten million had been deposited instead of seven million, he must have provided some kind of special service…!
The thought of Oppa doing those things with another woman made Lena and Leni feel like their insides were twisting into knots.
Was there any money dirtier than this?
Their mood didn't improve the next day either. Even though it was a rare day spent together with Oppa, Lena and Leni continued acting curt.
Thud—!!
They deliberately slammed the rice bowls down hard in front of him as if declaring we're angry.
"Hmph! Let it break! Oppa earns so much money now, we can just buy a new one, right?"
They mocked him.
"Yum…"
They deliberately ate the very last sausage Oppa had been reaching for…!!
In every possible way, Lena and Leni showed with their entire bodies that they were furious.
As if telling him to never go to a place like Orc Delivery again…!
If they kept showing their anger like this, surely Oppa would give up.
They were confident they could earn plenty of money after graduating university.
They had the ability to take on dangerous hunter work or safe positions as knights or mages in noble families.
"Sorry. For having an older brother… no, an Orc like this."
They had been lying in bed, focusing on the familiar scent of Oppa's body that they hadn't smelled in so long, when they suddenly heard his apology.
Were we too harsh?
At those words, all their anger melted away like snow. Lena and Leni nearly burst into tears and apologized.
Swish—!
Huh?
Right up until Oppa Rascal lifted the blanket and flipped their bodies over.
"Chwiiik… Chwiiik—!!"
The excited breathing of an Orc reached their ears.
What the—?
The twins couldn't even begin to guess what was happening.
Slap—!
"Eut…♡"
"Eut…♡"
But one thing was clear.
Right now, Oppa was looking at them not as sisters, but as women…
The twins began to gently sway their reddened buttocks—still burning from Oppa's slap—left and right, as if the marks were badges of honor.
