Having Sex with Subin
Marriage?
Subin's sudden confession left me speechless for a moment. It wasn't even a request to date—just marriage, out of nowhere.
By the common sense of my previous life, it was an incomprehensible rush. The proper order was to catch feelings, date, get to know each other thoroughly, and only then promise marriage.
Then it hit me: in this world, the concept of "dating" itself was thin on the ground.
The academy's official name wasn't Love Academy—it was Marriage Academy.
For the women here, romance was a luxury.
You met a man, and if he took a liking to you, you married immediately and had children to maintain the population. That was common sense and instinct in this world.
Things like flirting or dating were fantasies that only appeared in the kind of anime Subin had mentioned.
When I fell silent in thought and didn't answer, the color drained from Subin's face. Her emerald eyes trembled violently with anxiety.
She curled in on herself, growing passive. The atmosphere turned gloomy—as if the trauma of being rejected by her friends had resurfaced.
"…I guess I rushed things, huh? I'm sorry, Sihyuk. Just… forget I said anything…."
Her voice shrank. She hung her head, looking ready to burst into tears at any second.
"When I think about it… no man would want to marry a woman with low libido like me. I'm sorry. I'm really sorry…."
In an instant, her voice was thick with tears.
Her old wound of HSDD was about to open again. I could see the trauma she'd suffered countless times in the past crashing over her. Flustered, I hurried to soothe her.
"No! It's not like that, Subin!"
I urgently gripped her shoulders. She seemed so fragile she might shatter, so I carefully pulled her into my arms. Her small body trembled faintly against my chest.
"I wasn't trying to reject you—I was just surprised. I don't hate the idea at all."
I patted her back and whispered as if soothing a child. Subin buried her face in my chest and began to let out the tears she'd been holding back, one drop after another.
I spun my thoughts at high speed.
Honestly, there was no real reason not to marry her. I was going to live the rest of my life in this body anyway, and by law a man had to marry multiple women. And a man as sexually driven as me was inevitably going to end up with a lot of wives.
Mixed feelings of Do I even deserve this pure love? and the intense lust of I want to have sex with the woman in my arms tangled together. Complicated emotions.
But one thing was certain: I was the only one who could stop these tears. And I wanted to help her.
I leaned close to Subin's face and gently wiped the tears from the corners of her eyes with my thumb.
"Don't put yourself down like that. I like you. HSDD doesn't matter at all."
At my sincere words, Subin lifted her head and looked up at me. The anxiety and fear in her wet eyes gradually faded.
"Really…?"
"Yeah. Really."
In those tear-cleared eyes remained only pure love for one man. I met her gaze straight on and spoke.
"Let's get married, Subin."
At those words, Subin's face lit up with the brightest light in the world. She beamed, wrapped her arms around my neck, and pressed her lips to mine.
"Yes…!"
Chup.
It was a clumsy but bold kiss, driven by overwhelming emotion. Our lips collided, teeth clicking lightly—awkward, yet filled with every ounce of her sincerity.
I pulled her tightly into my arms. Her soft, plush lips kept covering mine without rest.
"Haup, mm, chup, smooch, chup, uum…!"
Even without intertwining our tongues, the wet sound of our saliva mixing was clearly audible. When we briefly parted, Subin met my eyes while panting hard.
"Haa, haa…."
Then she crashed her lips into mine again, far more fiercely than before. This time Subin pushed her tongue in. I accepted it and tangled mine with hers.
I'd never kissed like this before. It wasn't a kiss filled only with lust, but a fierce kiss of love that seemed to caress each other's hearts.
"Joha—chup, haup, mm, uum, smooch, churrup…."
A kiss clinging to me, craving love. A kiss that laid her entire heart bare. That kind of love and that kind of kiss. I didn't mind it.
During the kiss my hand gently stroked Subin's back. Before I knew it, it had slid past her back toward her full, springy rear.
Squeeze…!
The soft, bouncy sensation filling my palm made my head spin.
"I like you… I love you, Sihyuk… Thank you…."
When our lips parted, Subin hugged me tightly with a thoroughly aroused expression and whispered her love. I lifted her up and gently set her on the bed.
"I like you too, Subin."
I offered her the sweetest words I could.
"I was scared after losing my memories, but you showed up at the hospital and I was so grateful. I liked how kind you were, how you taught me so many things and looked after me… before I knew it, I felt love. Ever since we kissed last time, I couldn't get you out of my head."
It wasn't a complete lie. Most of it was true, actually. A woman this pretty, with breasts this big, sticking by my side for more than half the day, treating me kindly, even giving me a blowjob—not liking her was impossible. Especially for a former lifelong virgin from my previous life.
Subin seemed moved by my words; her eyes grew moist as she whispered.
"Me too… I think about you all day long, Sihyuk…. From the first time I saw you until now, I've liked you the whole time…!"
It was probably true. I was touched by this pure, devoted love. So this was childhood-friend love?
"I'm really glad you're my childhood friend."
At my words Subin's body flinched for a moment. Then she hugged me tightly and stroked my back.
"I… think so too."
Seeing Subin's cute face light up with joy at the successful confession, I smiled faintly and kissed her again. This time I did it far more gently, pouring affection into it.
Starting from her lips, I moved down her neck to her collarbone, kissing and caressing as I went. The lower I went, the more of Subin's clothes I had to remove. With every blouse button I undid, white skin was revealed, and my admiration followed.
"Wow…."
I carefully undressed her as if unwrapping a gift. Before unhooking her bra, I stroked her back and teased her a little; her body trembled faintly. I didn't just fondle her breasts—I slowly explored her navel, the insides of her thighs, the cleft of her rear, and more.
With every caress, Subin seemed to heat up further, letting out moans in a variety of tones. She fidgeted little by little, sinking deeper into pleasure.
"Your nipples are hard."
"You like it here too?"
"Tell me. Where feels the best?"
She answered my questions honestly even through her embarrassment—where felt good, where made her flutter, where made her happy.
I stripped as well, and at last nothing remained between us. I climbed over Subin as she lay on the bed and kept kissing her. While we kissed I lightly touched her pussy.
She was very wet. Having HSDD meant her libido was lower than other women in this world, not that it was nonexistent. It was only natural she'd get wet after kissing and being caressed by the man she'd had a crush on for over ten years.
Still kissing, Subin reached out, lightly took hold of my cock, and whispered.
"Sihyuk… put it in now…."
No more foreplay was needed. I settled between her legs and lined my cock up with her entrance. Right before insertion, as if time had stopped, we looked at each other.

My own face reflected in her eyes, the sound of our two breaths filling the room. It felt as if only the two of us remained in the world. My heart pounded as if I'd gone back to being a virgin.
"I love you."
Subin confessed her love once more. She touched my face and spoke in a dazed voice.
"I love you… I'll love you for the rest of my life. Thank you so much for accepting my confession."
I pressed a kiss to her forehead and answered.
"I love you too."
And at last, I slowly pushed my hips forward. The moment my glans forced its way into her tight entrance, a faint resistance met me and her face scrunched slightly.
"You okay?"
When I asked, Subin nodded with tears welling in her eyes. It was a pitiable, cute, and arousing expression—first-time pain mixed with the intimacy of love.
Unlike other women whose pussies were extremely sensitive, Subin seemed to feel a bit of pain from my thick cock. I kissed her softly again to reassure her and pushed deeper.
Tzzuk.
Her virgin pussy stretched tight around my cock. It was so hot, so tight, so wet. The fullness of her insides being completely filled with me. A sigh mixed with relief at finally becoming one slipped from Subin's lips.