First Sex with Seunghee (3)

"Ah, ah, ah…"

"How does it feel? Still hurting?"

I slowly began moving my hips. Short, repetitive strokes. Of course, my target was the weak spot I’d discovered in Seunghee earlier. Until she grew accustomed to it, I planned to focus on sex that would be easier for her to enjoy rather than anything too intense.

"It doesn’t… hurt, but… ah… aaaaah…"

The reaction wasn’t bad. Each time my glans rubbed that special spot inside her, a pitiful, yearning voice slipped from Seunghee’s lips.

"Mmm, hng, hng!"

She quickly realized the sound she was making and clamped her mouth shut. Was she embarrassed about moaning? Seunghee was desperately trying to hold her voice back.

"Seunghee, your voice is beautiful. If a sound feels like it’s about to come out, just let it. Hearing you makes me feel good too."

"B-but… what if we wake Sis… hng…!"

Mother was still sound asleep. It had gotten rather loud, so it wouldn’t have been strange if she’d already woken up. Maybe she ‍‍‌‌⁠​​⁠‌​​‍​​‍​‌​⁠‍‌‍⁠⁠‌⁠‌‍‌‍‌‌‌‍⁠​‌​‌​‌‍‌‌‌⁠‍​​‌‍⁠‌‌⁠⁠had woken up and was just pretending to sleep.

"It’s fine. Once Mother falls asleep, she won’t stir even if someone carries her off."

"E-even so…?"

"Ei."

"Hic?!"

When I suddenly ground hard against her spot, Seunghee let out a startled cry. She glared at me with resentful eyes. Yet within that gaze was a strange tenderness that even Seunghee herself probably hadn’t noticed.

"It’s okay to make noise. If Mother wakes up, I’ll just say it was me."

"What kind of excuse is that?"

Seunghee laughed. Her smiling face wasn’t bad at all.

Sex wasn’t just about bodies rubbing together. Mental connection mattered, of course, but so did every sense—sight, hearing, smell. And since this world had satisfaction bonuses, it was important to make even a single session feel genuinely good. To earn coins efficiently, I needed to truly enjoy the sex.

"You saw me with Mother too, didn’t you, Seunghee?"

"That was… well, yes, but…"

"If we’re going to live together, this is something you’ll have to get used to eventually. Avoiding it and delaying our coin income would be dangerous."

Even now, someone out there ‍‍‌‌⁠​​⁠‌​​‍​​‍​‌​⁠‍‌‍⁠⁠‌⁠‌‍‌‍‌‌‌‍⁠​‌​‌​‌‍‌‌‌⁠‍​​‌‍⁠‌‌⁠⁠might be preparing a gun. Killing Seungpil had only required a single pistol and one bullet—prepared in just one night. I didn’t want to believe every survivor on this island could commit murder as casually ‍‍‌‌⁠​​⁠‌​​‍​​‍​‌​⁠‍‌‍⁠⁠‌⁠‌‍‌‍‌‌‌‍⁠​‌​‌​‌‍‌‌‌⁠‍​​‌‍⁠‌‌⁠⁠as that man had. But Seungpil had been killed. After experiencing that once, failing to prepare would mean I’d be next.

"Y-yeah… Coins are important, after all…"

"Exactly. Reviving Seungpil, keeping ourselves fed, protecting our bodies—everything requires coins. So—"

"Hng?!"

Even while speaking, I kept rubbing that spot inside her. Seunghee, who had been rigidly tense since the moment of first penetration, was gradually heating up.

"So cooperate with me, Seunghee. The better it feels, the more coins it seems to give us."

"Then… what should I do? Ngh!"

"Just feel what you naturally feel and express it exactly as it is."

"As it is…?"

"Yeah. If you want to scream, scream. If you want to curse, curse. If it feels good, say so. And tell me exactly where it feels good."

"Th-that’s a little…"

"And move your own body to adjust the stimulation to the places that feel best. Or just tell me what you want. Men don’t understand women’s bodies that well."

"That too!"

Even after coming this far, she was still embarrassed about some things? We were literally in the middle of having sex. Well, I ‍‍‌‌⁠​​⁠‌​​‍​​‍​‌​⁠‍‌‍⁠⁠‌⁠‌‍‌‍‌‌‌‍⁠​‌​‌​‌‍‌‌‌⁠‍​​‌‍⁠‌‌⁠⁠wasn’t going to demand too much from Seunghee, who had been a virgin until this morning.

"I’m not telling you to do it immediately. You can slowly get used to it going forward."

"Uu… okay…"

I brushed the hair clinging to Seunghee’s face aside and gently admonished her.

"But at least while you’re doing this with me, don’t think about anything else. That’s just basic courtesy toward the man you’re with. Understand?"

"…Yes."

Seunghee’s mind had to be a mess too. So many major events had happened in such a short time. But to fully enjoy sex, she needed to shove those complicated thoughts into a corner of her head.

"By the way…"

"Are you really going to keep calling me ‘that’?"

"Th-then what should I call you?"

Hmm. Come to think of it, Seunghee and I were the same age. …But suddenly dropping formalities didn’t feel right. The moderate distance we had now felt perfect.

"Just call me Oppa like normal."

"Oppa… Changjae Oppa?"

"Mm. I like that."

"Changjae Oppa…"

Making a girl the same age as me call me Oppa. Surprisingly, it didn’t feel bad at all. If anyone found out later, I could just claim I hadn’t known we were the same age.

"…Then, Changjae Oppa."

I was about to really get started when Seunghee spoke up with a hesitant expression. It looked like she had a favor to ask.

"What? Is there something you want?"

"…Can you hold me really tight? I’m still a little… anxious."

"Of course."

That was an adorably simple request. Still lying face-to-face, I wrapped my arms around her back and pulled her firmly against me. Her small body nestled perfectly into my embrace. With our bodies pressed fully together, her fragility became even more apparent.

"Harder… even harder."

"Harder? Won’t you have trouble breathing?"

It was strange. I was already holding her quite tightly. Seunghee was delicate to begin with, so I worried that adding more strength might actually break something.

"It’s okay. So… more."

She kept asking. Following her request, I tightened my arms a little more.

"Kyuuh…"

A strange sound escaped Seunghee’s lips—like air leaking from her lungs. Had I squeezed too hard? But unlike what I expected, Seunghee didn’t resist. On the contrary, the pressure from her pussy suddenly grew much stronger.

How odd. Was this normal for other people too? I’d heard that squeezing the neck made things tighten down there, but this…

"Seunghee, are you okay?"

"I’m f-fine… fiiine…"

"You really don’t look fine."

I loosened my grip and looked at her face. Seunghee was breathing heavily, her face flushed bright red. What kind of reaction was this? It wasn’t simply suffocation. It looked like extreme arousal mixed with the distress of being unable to breathe.

Could this be… Seunghee’s fetish? Getting excited when hugged so tightly she couldn’t breathe? I considered myself fairly experienced with women, but I had never encountered anything like this.

"Did you like being held that tight?"

"Yesh… I like it… I like it…"

Seunghee’s state was bizarre. She reacted like she was drunk.

"Then let’s try doing it like this for a bit."

If she said she liked it and it wasn’t actually dangerous, it should be fine. It would probably help with coin earnings too.

I hugged Seunghee tightly again and began moving my hips with slow, careful thrusts. It was slightly less tight than before, but still enough to make an ordinary person feel suffocated.

The effect was far greater than I’d imagined.

"Mmmhiiiiii~~"

Seunghee let out an ascending cry and melted completely. I glanced at her face in surprise. She was making an expression no woman should ever show a man.

Hmm. Could someone really change this dramatically?

"Ahhing, ahhing, ahhihing!"

Her reactions when I stimulated her insides improved dramatically too. Every time my glans grazed her weak spot, Seunghee cried out lewdly and clamped down hard. Not every spasm was an orgasm, but it was obvious to anyone that she was feeling far more than expected for her first time.

"Oppaaa… Changjae Oppaaa…"

Seunghee called my name in a exhausted, pleading voice. It was surprising even for me. I hadn’t even come close to finishing, yet Seunghee had already gone around several times and lost her mind. She kept burying her face in my chest as if trying to block her own breathing.

She was completely out of it. To the point I wondered if she’d taken some strange drug. It was a dangerous state.

"Seunghee, breathe. You need to breathe."

"Heh… heeeeh… hehhuuung…?!"

I pushed her face away and forced her to breathe. Seunghee gasped desperately, her face bright red.

This was interesting.

I alternated tightening and loosening my arms around her, controlling her breathing. All the while, my cock continued to diligently dig into and rub against the inside of her pussy.

"Huu…"

"Hiiii, nghiaaaa──?!"

The pressure from her vagina was fiercer than expected. I was rapidly approaching my limit too.

I hugged Seunghee tightly, leaving only a small space for her to breathe, and moved my hips quickly for the finale. Short, rapid piston movements. My glans rubbed at high speed against that sensitive spot deep inside her.

"Haa, haa, haat!"

"Aaaaaaaaa──"

My breathing grew ragged. The rougher my sounds became, the more Seunghee’s sweet, lewd moans overlapped and drowned them out. Like falling from a great height, her voice showed no sign of stopping. My lower body grew soaked from the squirt she released.

I slammed all the desire I had held back directly into Seunghee. I used her pussy like an onahole, shaking my hips in a straight line toward ejaculation. I thoroughly wrecked Seunghee’s freshly deflowered pussy, turning it into a complete mess. Each time, she let out sounds that could have been screams or moans.

At the very end of that rough act, I drove my cock all the way to the deepest part of her vagina—the place I had deliberately avoided until now—and finally released the knot I had tied.

"Hng!"

"──Hic?!"

I listened to the messages in a daze, still submerged in the emptiness that followed ejaculation.