“HSDD is… like a curse.”
Her voice was full of pain.
“It’s regarded as an ominous sign, like inverted nipples. They all think I’m a defective product—a woman in body, but lacking the most important female instinct, sexual desire….”
“Without a sex drive, you can’t fit in with other girls. You can’t join in when they talk every day about men, masturbation, and sex. To them, I’m no different from a doll that can’t feel emotions. So… I’ve been alone since I was little.”
Subin told me about the time she had just started elementary school.
At the time, Subin had exactly one friend. Trusting that friend, she confided her secret—that she had HSDD.
But the very next day, rumors spread throughout the school.
‘Han Subin, they say she’s frigid.’
‘No wonder she always seemed so cold. They say she has absolutely no interest in men.’
‘Poor thing. To be born a woman….’
Behind those words of pity lay contempt and scorn. Her friends began avoiding her openly, as though misfortune would spread if they touched her.
At lunchtime, she always had to eat alone, and whenever she walked through the halls, she had to listen to people whispering behind her back.
Even that one friend abandoned her to join the other children’s group.
“That’s when I realized. In this world… someone like me doesn’t deserve to be loved. I’d have to live my whole life without friends….”
At last, a single tear fell from Subin’s eye. It landed on the table, leaving a damp mark.
I couldn’t say anything.
Anger at the absurdity of this world surged through me. The suffering that little girl had endured simply because her sex drive was a little lower bore down on me with unbearable weight.
“So when you became my friend, Sihyeok… I was truly happy.”
Subin wiped away her tears and looked up at me. Her tear-filled eyes held a desperate longing.
“Even though you knew my sex drive was weak, you never looked at me strangely. Instead, you protected me. If you hadn’t been there then, I might… I might really have died.”
I quietly pulled Subin into my arms. Her small body felt so fragile.
“It’s okay.”
I patted her back as I spoke.
“You’re not the strange one. This world is strange.”
At my words, Subin’s shoulders began trembling even more violently.
She buried her face against my chest and burst into the sobs she had been holding back.
For a while, I could hear her sobs, mingling sorrow with the relief of having finally told the truth.
“I don’t think HSDD is strange at all. If anything, I liked you even more because you were different from the other girls. So you don’t need to feel anxious in front of me.”
I felt the tension wound tightly inside Subin finally begin to ease.
“Even if you lost your memories, you’re still Sihyeok after all….”
I gently wiped away Subin’s tears with my thumb. At that moment, our eyes met.
Her emerald eyes glistened like jewels through her tears.
For a moment, her beautiful face left me speechless: damp eyelashes and cherry-like lips slightly parted. She was cute and beautiful.
And then, for some inexplicable reason, a powerful sense of intimacy welled up from deep within my heart, as though I had known her for a very long time.
Though my mind had forgotten Subin, my body seemed to remember her.
Subin said nothing. She merely looked up at me with tearful eyes.
In that gaze lay gratitude and relief, and… the purest and deepest affection a woman could show a man.
Love.
A strange, sweet atmosphere slowly enveloped the space between us.
Everything seemed to move in slow motion. Subin raised her trembling hand and placed her small, cold hand over mine.
The moment that fragile warmth touched the back of my hand, I could no longer hold myself back. I brought my face close to Subin’s.
-Mwah.
At first, it was merely a light kiss. Soft and sweet.
Subin’s body gave a slight, startled twitch, but she didn’t push me away. Instead, she gently closed her eyes.
Encouraged by that sight, I gradually explored her lips more deeply.
When our tongues met, I tasted the sweet orange juice in Subin’s mouth, along with her own unique scent.
It was a youthful, innocent kiss.
How much time passed? Reluctantly, we ended the kiss and our lips parted.
Only then did I realize what I had done, and I became flustered. But at that moment, Subin tugged at my collar.
This time, Subin made the first move. Her courageous kiss was far more passionate than the one before.
Subin’s tongue slipped into my mouth and wrapped around mine.
She was adorable as she moved her tongue earnestly, not knowing how to kiss.
When the kiss ended again, Subin seemed unable to contain her overwhelming emotions. Gasping for breath, she confessed her true feelings.
“I only had you and Chaerin. You two were the only ones who treated me like a person, and thanks to you… thanks to you, I was able to live.”
“I know you don’t see me as a woman. I know you only think of me as a friend. But… after having my first kiss, I don’t think I can hold my feelings back anymore. Sihyeok, you see…!”
Just as Subin was about to confess, we heard Chaerin walking down the hallway.
We were startled and sprang apart like two coiled springs.
Chaerin had returned from the bathroom. Seeing the two of us sitting stiffly and the strange atmosphere in the living room, she furrowed her brow.
“What were you two doing? Why is the atmosphere so strange?”
At Chaerin’s question, Subin flushed and rose from her seat.
“I-I’m going to use the bathroom too…!”
As Subin fled, Chaerin immediately pressed herself against my side and questioned me suspiciously.
“Did something really happen? Tell me honestly.”
When Chaerin’s body pressed against mine, my cock, already hard from kissing Subin, grew so rigid that it hurt.
It was such an honest reaction that I felt sorry for Subin, with whom I had just shared such a sweet kiss.
I hurriedly stood up and pretended to look around the living room as I moved away from Chaerin.
“It’s nothing. I was just asking about HSDD.”
“Hmm….”
Chaerin kept eyeing me suspiciously, but soon shifted her gaze to the front of my pants and raised the corners of her mouth.
“You’re awfully hard in someone else’s house. Want me to take care of it?”
Chaerin said it in such a casual tone that it sounded as though she were asking, “Want me to make dinner?”
My mind was still hazy from the sudden kiss with Subin, so I didn’t have time to process what she meant before I reflexively nodded.
“Yeah.”
Oh no.
The moment the word escaped my mouth, I realized what mistake I had made. But it was already too late.
As soon as my answer was out, Chaerin slipped off her top and dropped to her knees in front of me.

Then, with practiced movements, she undid the buckle of my pants and pulled down the zipper.
She dragged down my underwear in a single motion as well, moving so naturally and swiftly that I wondered whether she had practiced in secret.
“Wait, Chaerin! This is the living room!”
I tried to stop her in a panic, but my words were useless.
In an instant, my freed cock sprang out, already fully erect, and Chaerin grabbed it.
-Schluup!
“……!”
The wet sensation of a woman’s mouth enveloped my entire cock at once.
Until a moment ago, Subin’s mouth had been sucking my tongue. Now Chaerin was sucking my cock.
My head began to spin.
This wasn’t our house. It was someone else’s house—specifically, the living room of my friend Subin’s house, where I had just shared my first tender kiss with her.
I had no idea when Subin, who had gone to the bathroom, would return.
Under that extreme tension, my twin sister was greedily sucking my cock.
“Hngh, slurp…! Lick…!”
Chaerin’s technique had improved to an astonishing degree.
The awkward way she had moved her tongue at first was gone without a trace.
Chaerin wrapped her soft lips around my shaft and persistently licked my glans with her hot tongue.
Her blowjob alone sent a tingle through my lower abdomen.
‘I need to tell her to stop….’
This was insane. I had to push Chaerin away and end this ridiculous situation immediately.
But my body was honest. A melting wave of pleasure spread from my lower body through my spine and throughout my entire body, rendering all my resistance powerless.
The immoral setting—the living room of someone else’s house—the race against the clock before Subin returned, and the sight of my twin sister looking up at me while lewdly working her tongue.
All of it blended together to create a pleasure I had never experienced before.
In the end, I surrendered.
“…Only until Subin comes back.”
Once I gave her permission, Chaerin’s movements became even bolder and more explicit.
“Mmph, slurp… sluuurp…!”
Making satisfied noises, she took my cock even deeper into her mouth.
While giving me a blowjob, Chaerin used her free hand to gently stroke the tender flesh on the inside of my thigh.
That subtle stimulation made me realize all over again just how sensitive the muscles around my cock were.
It felt as though every nerve in my body had become concentrated around my cock.
The dangerous, thrilling pleasure made me pant heavily, as though I were some kind of exhibitionist.
I let out a low moan at the meticulous blowjob Chaerin gave me.
“Haa… Chaerin….”
And then I made a mistake.
I had become so deeply immersed in pleasure that I failed to hear Subin returning.
“Huh?”
It was Subin’s slightly startled voice.
I jerked my head up in surprise and met Subin’s eyes as she stood frozen at the entrance to the living room.
And Subin saw it.
She saw the shocking sight of her first-kiss partner stripped down in her living room while his twin sister greedily sucked his cock.
She had witnessed it all.