Chapter 8: My Little Sister's Armpit
“It’s really nice to go out with oppa.”
Using the weekend for our first solo outing in ages, Haeon and I strolled toward the department store while chatting affectionately.
The department store was only a twenty-minute walk from our house, but I didn’t want to battle the August heat, so I suggested taking a taxi.
However, Haeon’s fierce opposition—wanting to walk intimately together—forced us to head there on foot instead.
Was it the long absence of a proper outing?
Even though the weather was so hot sweat poured down, Haeon’s face stayed lit with a smile. Thanks to her powerful insistence, we ended up holding hands affectionately.
“Oppa, it’s not hot?”
“No, I’m fine…”
My body was weak to the heat, but seeing my lovely younger sister’s bright face made me swallow any weak complaints. Yet this girl maintained such tension in this scorching weather—did going shopping together feel that good?
But really, it was brutally hot, perhaps because a heat warning had been issued.
Thanks to the heat, a dampness clung to the hands we’d intertwined. I couldn’t tell whose sweat it was—hers or mine. Still, we refused to let go.
“If it’s too hot, tell me. Let’s take a taxi.”
“I’m fine. It’s not that far anyway.”
While exchanging such ordinary conversation, Haeon replied appropriately. As we stepped onto the crowded street, the attention and stares following us surged sharply.
It was a familiar sight.
Countless gazes rained down on Haeon as we walked.
Because it was the weekend, the streets were packed with people. Especially the men—all of them stared blankly at Haeon. Since I was one of those men, I knew it was an instinctive reaction to a pretty girl.
The gazes coming from this direction were almost entirely from men, all fixed on Haeon’s beautiful face in the middle of the sweltering street.
“Wow, she’s so fucking pretty.”
“Looks like someone from her Insta or something.”
“Isn’t that Yu Haeon? She was super popular in our high school last year…”
Because so many people stared at Haeon, I sometimes heard guys who couldn’t control their voices chattering. It was especially bad on crowded streets—many pretending not to look while sneaking glances at Haeon.
I knew Haeon was pretty and popular at school, but when the men’s blank stares poured down like this, I felt my little sister’s appearance was on a completely different level.
She sparkled even when standing still and drew everyone’s attention.
Plus, today she’d paid attention to fashion, so the gazes were even more blatant than usual.
When Haeon looked at me, the side of her face drew the stares. When she fanned herself, the gaze fixed on the slightly visible white armpit beneath her arm. When she extended her leg forward, the gaze locked onto her legs wrapped in sheer pantyhose, the subtle skin showing through.
“Damn, they’re staring openly…”
“Eh, don’t mind it, oppa.”
Again. Haeon smiled faintly and tapped my shoulder. A guy stared blankly at the slightly exposed armpit.
Noticing the gaze, Haeon leaned close to my ear and whispered softly.
“That person is staring at my armpit.”
“Should I say something?”
“…I’m a bit sweaty right now, it’s sticky. Maybe that person saw my armpit sweat.”
A slightly provocative tone.
When our eyes met, Haeon revealed her teeth cutely and smiled.
“Not only that? Some people keep staring at my legs in stockings… some people are staring at my ass.”
“Haa…”
“Maybe while looking at my ass, they’re imagining what my anus looks like.”
Hearing that, my blood boiled uncontrollably. It infuriated me that they were leering at my beloved sister, but it was even worse that my sister said it without any hesitation.
“Yo, you’re not bothered at all?”
“Of course not. In the end, only oppa knows what my anus looks like, right?”
With a mischievous voice, Haeon’s warm breath tickled my nose.
When I came to my senses, Haeon’s both hands were cupping my face.
“…Haeon?”
“Oppa.”
Haeon smiled faintly and lifted her heels to bring her face closer. As her lips drew near, her warm breath pushed in… I couldn’t help but sniff. Seeing my reaction, Haeon laughed softly and gathered breath in her mouth before exhaling onto my nose.
“Fuuu…♡”
The rough breath felt on the tip of my nose.
The air that came out through Haeon’s lungs was very hot and fragrant.
“My breath smell, how is it?”
Haeon’s pretty face smiled right up close. With her clear, clean eyes that still looked like a girl’s, she deliberately pressed her lips to my nose and spoke.
“It’s fragrant…”
“Yeah. Only oppa would know my breath smell, right?”
I usually enjoyed skinship with my sister, but for some reason today it felt much more embarrassing. Because people had stopped on the sidewalk, chatting and staring at us.
“Mom, what is she doing?”
“Is she kissing on the street?”
“Ugh, do it somewhere else…”
A warning that public affection could bring discomfort to others came to mind.
Skinship between brother and sister was natural, but in public it might be a nuisance. However, Haeon didn’t seem to care about the gazes looking this way at all.
Rather, Haeon was smiling faintly, clearly enjoying those stares. …Why was she smiling so quietly? It made people uneasy. Just as my gaze reached her lips.
Haeon slightly raised her arm.
“…Eh?”
And I saw it clearly.
Haeon’s sweaty, glistening armpit.
“How is it, oppa?”
My pure and angelic little sister Haeon showed me her sweaty armpit and gave a lewd smile.
Then the people’s murmurs around us grew louder.
“What? That girl. Is she showing her armpit?”
“Why is she doing that on the street… Must be crazy…”
“Wow, men are so envious. Damn.”
Some looked with envy, some with disgust, at me.
I couldn’t understand the disgust in those gazes. Was showing an armpit for oppa strange? It wasn’t particularly strange—why such an expression?
“Because it’s public?”
“Look, oppa. My armpit… is full of sweat because it’s hot.”
When Haeon raised her arm, an indescribable lewd scent tickled my nose.
The armpit glistening with sweat from walking in the scorching heat showed stickiness on smooth skin with no single hair.
“How is it?”
“Of course it’s pretty.”
“Yeah. I only show this to oppa.”
Only to me.
I felt a thrill run down my spine from Haeon’s words.
A happy brother who wouldn’t have if his lovely sister with long black hair rumored to be a smiley girl said she’d show her armpit only for him.
“Not only my armpit, but my anus too, my ass and feet are all oppa’s. If oppa wants, I can thrust my anus right here right now. Or should I give you a footjob? I’ve sweated a lot on my feet too.”
Haeon said that with a smile.
I liked my sister’s sweet request, but the surrounding gazes were bothering me.
“Yo… that girl is so pretty, why is she doing that?”
“Ah, shit. Men are so envious.”
“Shit, what are you doing on the street…”
Despite gazes mixed with jealousy, desire, and disgust, Haeon laughed while letting out a soft sigh.
“How is it, oppa. Shall we do it here?”
“Yo, there are so many people, how can we…”
“Hehe. As expected?”
Haeon lowered her arm again.
As expected, even siblings expressing affection in crowded places was a bit awkward.
“Let’s go to the department store quickly, oppa. I’m hot.”
“Yeah. Let’s go fast.”
We decided to express affection at the department store and urged to keep walking. We ignored the gazes from people chatting while looking this way.
“Shit, if the hypnosis app effect was just a little better… why only max five people…”
Haeon’s muttered words weren’t pushed by the conversations of people whispering something while looking at us. Rather, perhaps because I’d been a bit excited seeing my sister’s armpit earlier, it felt even hotter than before.
Just as I was considering hailing a taxi now, Haeon with arms crossed came close to me, pressing her chest against mine.
“Oppa. It’s even hotter weather—how about we take a short break somewhere?”
“Really? Where?”
“There. Let’s go to that cafe!”
Haeon’s finger pointed to a room cafe located in a very quiet alley. A signboard saying “Unlimited drinks!” was visible.
Hmm… First time at a room cafe.
Should I drink coffee there? While thinking that, Haeon smiled lewdly.
“I’m sweating a lot too, my stockings are wet. Let’s cool down the sweat there.”
“Yeah? Then let’s go.”
I couldn’t refuse my sister’s lovely request, and somehow led by her pulling my hand, we headed to the room cafe.