Burning Friday (3)
"Hup… slurp…." The first round was over. Chaeyu was still sucking on my still-hard cock.
"Does it feel good?"
"Yeah… it feels good…."
Chaeyu was sucking greedily, trying to get as much as she could before it went soft after ejaculation. Because my cock was so sensitive, my hips arched on their own. The semen coating the shaft mixed with Chaeyu’s saliva, creating a sticky, wet sound.
"Ugh… slurp… hup…."
"Haa…."
It had been a while since I’d received a blowjob from Chaeyu. She hadn’t lost her touch; she knew my weak spots all too well.
"Are you going to cum already…?"
"Not yet…."
"You’re twitching, though? Are you just pretending to be tough again?"
"I already came once, so I’m fine for now…."
"Oh, come on—mph!"
I decided to teach my little sister a lesson for getting a bit too cocky. Of course, as Chaeyu said, it was honestly dangerous, but I didn’t want to admit it out of pure stubbornness.
"You’ll probably cum if I do this much…."
I moved her head back and forth as if I were pumping a masturbator. The sound of her drool only made it more arousing.
"Mph, mph… oh…!"
The more I heard those sounds, the more my reason slipped away. Every time I saw my cock sliding in and out of her mouth, the urge to just let go and cum grew stronger.
"Mph… ugh…!"
I pushed my cock in hard, right to the edge of climax. Chaeyu’s trembling throat stimulated the head of my cock intensely.
"Haa… haa…."
"See? I didn’t cum."
"Ugh…."
Chaeyu got on her hands and knees, lifting her hips. They were ripe and perfect for fucking. I found myself secretly excited to see what it would feel like to fuck her from behind after so long. Even if it’s the same pussy, the feeling changes depending on the angle.
"Ugh…."
Maybe she had already adjusted to me, because the moment I pressed my head against her, her pussy clamped down. The uniquely moist, sticky sensation of her cunt pulled me in.
"Haa…."
"Should we take it slow this time, too?"
"……Do whatever you want."
I pushed in slowly, all the way to the hilt. Maybe it was because the back door is tighter, but it felt even more constricting than when we did it from the front.
"Mmm… haa…!"
I moved my hips very slowly, feeling every single fold of her inner walls. The hole above where my cock was buried seemed to be expressing Chaeyu’s true feelings. Seeing her so happy, I felt a surge of affection and patted her ass instead of her head.
"Ha, haa…."
"…?"
Chaeyu let out a delicate moan and reached her arms back. She struggled to grab my hands, as if asking me to hold onto her. …She’s starting to show her old habits.
"Hyaak?!"
"You used to love it when I did this, didn’t you?"
I slapped her ass hard enough to be firm but not painful, and as expected, Chaeyu reacted immediately. Her buttocks shivered lightly, and her inner walls tightened even more. Her reaction was so fun that I hit her again.
"Do, don’t just hit me… hold meee…."
"Honestly."
I couldn’t ignore her pleading voice, so I grabbed her hands. Pulling on her arms, I began to pick up the pace.
"Ha, ah, ugh, mmm…!"
We were such a perfect match. This was why I had made Chaeyu my sex partner. Maybe it’s because she’s her mother’s daughter, but we were truly compatible.
"Mph… hup…!"
I pulled her arms to lift her up. Chaeyu, still impaled by me, turned her head and stuck out her tongue. I responded by sucking on it, engaging in a deep kiss.
"Hup. Heh… ugh…! Haa!"
When our lips parted, Chaeyu was left limp. I didn’t care; I grabbed her waist and thrust even harder.
"Ha, ugh, ah, heh."
It was hard to hold back when she was tightening around me like that, but I couldn’t give up the sound of my crotch slapping against her ass. My cock must have paralyzed my brain; all my focus was narrowed down to only my eyes and ears.
"Haa…."
I pulled out for a moment to change positions. Perhaps because her pussy had been gripping me so tightly, it felt like the lingering sensation of that tightness remained, much like the feeling of weightlessness after getting off a roller coaster.
"Haa…."
I inserted myself again into Chaeyu, who was lying on her side. Pressing down on her hips with my hands, I added more pressure to my cock. Chaeyu’s side-breast slumped down due to gravity, swaying beautifully. In the midst of it all, I grabbed her hands, which didn’t know where to go, and sucked on her fingers.
"Haa, ah… haa…."
Maybe it was because I was finally releasing the sexual frustration I’d built up, but even without drinking, my mind was drifting into the unconscious. The rich, erotic scent felt as if it had transformed into a fragrance.
"Op… pa… look at me…."
"……."
Even though I had been treating her like a toy because of her pathetic provocation earlier, my heart crumbled the moment she called me "Oppa." Maybe I actually wanted a younger sister rather than an older one. A younger sister who listens to me and follows my cock well.
"Mph…."
She turned her body back, returning to our original position. I leaned down to see Chaeyu’s face up close. Chaeyu naturally wrapped her legs around me. Her warm body heat was felt particularly well.
"Mph, haa, ah, hugh."
She was cute before, but maybe because I knew she was my sister, she felt even cuter. We might be siblings, but we had already built up all sorts of sexual history, so I felt absolutely no resistance to the act itself. Right now, I was just…
I moved my hips with the feeling of becoming one with the person I liked.
"Op, oppa…."
"Why…."
"You really… last a long time, don’t you…?"
"Because I’m not a premature ejaculator…."
The times I came quickly before were just because there was no emotion; I was just trying to relieve my sexual urges. And it wasn’t premature ejaculation; it was just a quick release. "What about you… are you satisfied…?"
"Why, eh…?"
"You said you weren’t satisfied last time…."
"That’s because… only you were enjoying it, ahhh…."
But it was different now. Since that day, I had met the person I liked, and now we were one. The form was a bit strange, but it was still true. So, I was holding back because I wanted to last as long as possible. Opportunities like this don’t come easily.
"Ugh, hugh…!"
I pressed both her breasts with one hand, feeling their fullness. I didn’t even have to squeeze them hard like a stress ball; just holding them lightly washed away all my stress.
"Ugh…."
As the stress melted away, my tense glans relaxed as well. The semen that had been lingering in the vas deferens traveled through my urethra and out into the world once more.
"I’m going to cum…."
"Yeah…!"
As I ejaculated, the condom filled to the brim. As my blood pressure, which had spiked for a moment, returned to normal, the rest of the semen followed.
"Haa… haa…."
"Huuu… mph…."
I hugged Chaeyu and kissed her tenderly. Even while ejaculating, I felt her pussy tightening, and I filled the post-coital clarity that had begun to creep in with Chaeyu.
"Huu."
I pulled my trembling hips away and placed the condom on Chaeyu’s stomach. Compared to the first condom that had already spilled on the side, the amount was much larger.
"I’m exhausted…."
"Weakling."
"Why do you keep provoking me?"
"Because your reactions are fun."
"……."
Chaeyu, who was just as exhausted as I was, giggled. She looked like such a mischievous brat that I couldn’t bring myself to hate her.
"Aren’t you tired, too?"
"Me? I’m… still okay…?"
"The bed is a mess, though?"
"……."
Hearing my words, Chaeyu looked at the bed, her face turning red. On the stark white sheets, there was a dark gray, wet patch in the middle. Anyone could tell it was fluid from Chaeyu, not me.
"Op, oppa, you didn’t do that?!"
"What are you talking about? Mine is all inside here."
I said, pointing to the semen inside the condom. Even if she wanted to explain that away as sweat, this wasn’t a sauna; it wouldn’t have leaked that much. She’s really cute.
"Ugh…."
"Then do you want to prove it?"
"Prove what?"
"Whether that puddle is mine or yours."
"How…?"
"We can just do it one more time."
There was still one condom left. If you buy a set, it’s only polite to use them all in one day. I suggested it, partly to tease Chaeyu.
"…Okay."
"I’m tired, so you get on top."
"Okay…."
We pulled the duvet I’d kicked onto the floor back onto the bed. The arena was reset, and Chaeyu climbed on top of me lightly. Looking at her from below, her breasts looked even sexier.
"Haa…."
She performed *sumata*, nourishing my wilted cock with her pussy. Putting the bet aside, Chaeyu interlaced her fingers with mine, and we got into the mood. As our shafts rubbed together, my soft cock began to harden once more. Honestly, it hurt a little, but I had no choice but to endure it.
"Are you… ready…?"
"Just a little more…."
Every time my glans appeared and disappeared under Chaeyu’s weight, it grew larger. Honestly, it was already good enough, but I really wanted to experience Chaeyu’s hip movements firsthand.
"You can put it in now."
"Yeah…."
Chaeyu grabbed my cock and easily found the hole. My cock, which had been pressed against her, slid right into her pussy.
"Ugh…!"
"Haa…."
Chaeyu, still interlaced with me, began to rotate her hips. After finding the right rhythm with my cock, her movements accelerated rapidly once she felt the perfect fit.
"Haa… ugh…!"
"Ha… haa…."
The movements were so perfectly in sync that even I couldn’t help but moan. A thrill ran down my spine, and my head throbbed.
"Op, oppa…."
I felt like water was flowing down to my testicles. *See? It’s not mine, it’s yours. I don’t leak like this. I shoot upwards.*
"Mph… hup…!"
Chaeyu let go of our interlaced hands and kissed me. As I hugged her, I thrust my hips up to meet her. I kept feeling her soft, elastic ass until I reached my climax.
"Haa… haa… ugh…!"
"Hee-ugh!"
I ejaculated while holding Chaeyu tight. I didn’t move until the ejaculation stopped. It felt like the thick essence that had been left in my urethra was finally coming out.
"Haa…."
As Chaeyu lifted herself slightly, my cock went limp and slipped out of her pussy. Having done it three times in a row, I was exhausted and breathing heavily.
"A little bit came out this time."
"…Of course it did, we did it three times in a row. You should worry about your own fluids."
"I, I told you, it’s not mine…?"
"Whatever. Whether you admit it or not, the facts don’t change."
"……."
"Let’s just sleep. I’m really tired."
"…It’s 7 AM right now."
"What…? Don’t lie. How long could we have possibly—"
"It’s true, you idiot."
"……."
Looking at the phone Chaeyu showed me, it was indeed 7 AM. No, we’d never spent this much time together before. We must have really been at it for a long time. I felt like it had been incredibly short.
"What do you want to do?"
"…Checkout is at 11, so let’s sleep until then."
"Okay."
And so, we ended up sleeping until 11, and we had to check out without even being able to take a shower.