It's All Doyun's Fault for Being So Damn Hot
Chaewon noona was asking for a breast massage.
In her eyes, desire and anticipation swirled together.
In this gender-reversed world, a woman's breasts honestly didn't hold much value. Sure, bigger ones might boost a girl's self-esteem a bit, and yeah, they could get heavy and sag, which is why bras existed. But walking around without one? It wouldn't cause any real problems.
Even so, the act of a man touching a woman's breasts carried real weight. It was on a completely different level from something like a leg massage.
At the very least, it wasn't something family members should be doing. A breast massage was proper foreplay, the kind reserved for lovers.
In other words, Chaewon noona had just taken one bold step over the fragile line she'd been teetering on.
…But honestly? I didn't mind one bit.
Because I'd never planned on respecting that line in the first place.
I just hadn't been the one to cross it first. If she was going to step over, I was more than happy to welcome her.
Incest, taboo, whatever—none of that really bothered me. In my previous life I'd been an only child, and I'd always harbored a secret fantasy about having a beautiful older sister.
If anything, the current situation was so arousing it was actually great.
“Ah… um… sorry, Doyun. Was that too much to ask…? I didn't mean to put you in a tough spot…”
When I stayed silent for a long time, Chaewon noona took it as rejection. Unlike her usual confident demeanor, she shrank back, looking deflated.
Hmm. Noona had worked up the courage to make a move. I couldn't let her lose her nerve now.
Instead of answering with words, I showed her with action.
Squish—
Chaewon noona's breasts, covered only by a thin white tank top, were far softer than I'd imagined.
“Hyaat…!”
“Whoa. They're even bigger than I thought. I can't even cover them with both hands.”
“Hngh… Doyun… you…”
“What? You asked for a breast massage, didn't you? I'm just giving you what you wanted. What's the problem?”
“Ugh… haaa…”
“This position's kinda awkward, though. Noona, can I climb onto your lap?”
“Mmm… yeah, go ahead…”
Locking eyes with her, I straddled her thighs. Since I was on the smaller side, it ended up looking like I was being held by her.
If I just leaned in and let her hug me tight like this, it'd probably feel amazing.
But that wasn't the point right now.
Focus on the massage first.
“Oh… this is actually pretty fun to play with. It's like squeezing slime. Noona.”
“Hngh… ugh… D-Doyun… be a little gentler… just a bit… it kinda hurts…!”
“Come on, what are you saying? You're an S-class hunter, aren't you? Someone who wouldn't even flinch if I pinched her—why are you acting so dramatic?”
Seeing her flustered reaction made me want to tease her even more.
I grabbed both of her massive breasts with my hands and squeezed hard.
They were so big that my smaller hands couldn't fully grasp them. Between my fingers, her cute little nipples poked out adorably. If I squeezed them like this, it felt like milk might actually squirt out.
“Haaahng…!! Doyuuun…!!”
Apparently she couldn't hold back anymore. Chaewon noona clamped her thighs together and trembled violently.
That heavy female scent and her reaction told me she'd just had a light orgasm.
Wow… this worked way better than expected.
I never thought a simple breast massage would be enough to send her over the edge.
Still, she had her pride. How embarrassing would it be to get caught climaxing in front of her little brother?
I'd have to pretend I didn't notice.
I stood up with the most innocent expression I could muster.
Chaewon noona looked up at me with desperate, longing eyes that clearly said she wanted more.
Hey, hey. Calm down, noona.
Are you seriously trying to go all the way to sex right here?
Don't get me wrong—I'd love to have sex with a beauty like Chaewon noona, but that would be crossing way too many lines.
Breast massage might be like WWE, but actual sex would be straight-up UFC.
If Mom found out, I might survive, but Chaewon noona would probably get beaten to death.
So today, this is where we stop.
Besides, I came here with a purpose.
“Noona. Was the massage satisfactory?”
“Huh…? Ah… yes. It was very satisfying. Our Doyun seems to have a real talent for massages.”
Chaewon noona instantly switched expressions, returning to her usual composed self.
But it was too late to play the elegant older sister now, wasn't it?
To me, she just looked cute.
Hmm. Anyway, that was beside the point.
More importantly, I had to collect what was due.
“Chaewon noona. You didn't forget anything, did you?”
“Huh? Forget something?”
“…”
“Pfft. Just kidding. I'll give you your allowance. Don't worry. I'll send it right now.”
Chaewon noona unlocked her phone and tapped the screen a few times.
I felt my pocket vibrate.
When I checked the notification, seven million won had been deposited under Chaewon noona's name.
Seven million won!!
Seven million!!!
Chaewon noona earned a ton and gave me huge allowances, but this was the first time she'd given this much at once.
Staring at the amount in my account, my respect for Noonim skyrocketed instantly.
“Chaewon Noonim!!!! Thank you so much!!!! Please have a wonderful day!!!”
“Hehe. No, thank you for the massage. So make sure you do it again next time, okay?”
Chaewon noona wiggled her fingers cutely and smiled with her eyes, but honestly, I didn't even register it.
My mind was completely occupied with what I was going to do with this seven million won.
Seven million…!
That was more than enough to fully limit break my signature weapon and still have plenty left over.
If my luck was good, I might even come out ahead!
Ah. My wallet suddenly felt so full that I was overflowing with confidence.
Was this the mindset of the rich?
Right now, I felt like I could do anything!
“Noonim! Thank you once again from the bottom of my heart!! Then I'll be on my way!!”
My business in Chaewon noona's room was done.
I sprinted back to my own room to keep rolling the gacha.
Hehehe. Signature weapon, just wait for me!
Ha Doyun is on his way!!!
“Kuaaaaaagh!!!! This has to be a nightmare!!!!! Six pity-breakers in a row on the weapon!!!! Stop fucking with me!!!!”
Ha Doyun's scream echoed from the room next door.
Ha Chaewon didn't know much about games, but from that desperate shriek, she could tell something had gone horribly wrong.
Pfft. Looks like Doyun failed again. In that case… he'll come asking for more allowance soon, right?
While Ha Doyun was genuinely cursing his abysmal luck, Ha Chaewon felt completely different.
She was already looking forward to his next visit.
Ha… I really shouldn't be like this… If Mom finds out, I'm actually going to die…
Ha Chaewon.
Twenty-five years old.
The youngest S-class hunter in the country, bearer of the title Sword Saint.
She had lived a life others could only envy, yet she carried one secret she could never tell anyone.
She was in love with her own little brother—as a man.
That was Ha Chaewon's only torment.

—
‘I tried to bury these feelings… but… how am I supposed to stop when Doyun looks so fucking hot…?’
At first, she'd tried to deny it.
No matter how cute, lovable, biteable, or downright arousing Doyun was, she hated herself for lusting after her own brother.
But no matter how hard she tried to hide it, the feeling refused to stay buried.
Love was far more persistent and sticky than Chaewon had ever imagined.
So she changed her approach.
If she couldn't push him away herself, she'd make Doyun push her away instead.
If her little brother came to hate her, then this love could never come true.
It would hurt terribly to be hated by him, but Chaewon thought that would be enough.
That's why I told him he had to give me a massage if he wanted allowance… but Doyun happily accepted the offer instead.
When a woman demands a massage in exchange for allowance, it's an incredibly unpleasant proposal from a man's perspective.
Depending on how you interpreted it, it could even sound like she was treating him like a prostitute.
An extremely rude suggestion.
Chaewon had been certain that if she made such a demand, Doyun would be disgusted with her.
But the result was the complete opposite.
Doyun had been delighted and given her the massage anyway.
And this was the outcome.
Giving Doyun allowance in exchange for massages had become their daily routine.
This is Doyun's fault too… He has zero wariness toward women. That's why… I keep wanting more and more.
The first time is hard. The second time is easy.
Chaewon had grown used to receiving massages from Doyun, and her reason was slowly being chipped away.
And today, she had finally crossed the line once more.
She had asked Doyun for a breast massage.
Even she didn't fully understand why she'd made such a suggestion.
Maybe her judgment was clouded because she'd just woken up…
Or maybe it was because she'd masturbated too intensely the night before while thinking about him…
…Or perhaps she simply couldn't hold back anymore now that Doyun had become a full adult.
But one thing was certain: Chaewon had taken the challenge, and the challenge had succeeded.
Thanks to today, she could now ask for breast massages too.
Her sense of morality and ethics had already been destroyed long ago.
All Chaewon could do was savor the lingering heat that refused to cool, remembering the touch of Doyun's hands.
…I didn't want to do this first thing in the morning, but his hands felt so good I can't help it. I'll just take care of this lightly with my fingers and then get up.
Thinking about how Doyun had just been kneading her breasts, Chaewon slipped her hand under her panties and began rubbing herself.
What was supposed to be a quick release of sexual tension ended up lasting one hour… then two.
It was already afternoon by the time Ha Chaewon finally came back to her senses.