Reverberations
Even the simple act of his cock sliding out of her pussy carried a heavy, imposing weight. He was truly massive.
As if to prove how different he was, Seeun's flesh clung to him, stretching outward until the very moment he slipped free. Only when her vagina was left empty did she finally gasp for air.
Wonchul watched the condom, heavy and dripping with thick semen, before peeling it off and tossing it into the trash can.
"Phew. Heh."
He let out a soft, satisfied chuckle.
...Is that it?
This is Seeun we're talking about, not just anyone.
Seeun, who is absolutely flawless, from her face to her body.
He just tasted her—heard the cute yet seductive groans she made, felt a vagina that is undoubtedly a myeong-gi.
And that's all the reaction I get?
...No, wait. What am I doing?
Or am I...
What exactly do I want to hear from Wonchul right now...?
"Minjae."
"—Huh? Yeah."
By the time I snapped out of it, Wonchul had already wiped himself down and pulled his underwear back on.
"So, how was it? Is this enough?"
Is this enough...?
It sounded as if he was implying he could do more if I wanted.
But right now, more than any anticipation of what else he could do, I just wanted to hold Seeun myself.
"Yeah. Yeah..."
"Alright. I could hang around a bit longer, but I actually have plans tomorrow. Mind if I head out first?"
He phrased it as a question, but Wonchul didn't stop dressing.
He buckled his belt with a sharp click. The only proof of the intense sex that had just taken place was the beads of sweat still glistening on the back of his neck.
"Yeah. Okay. Thanks for today..."
Thanks...?
I couldn't bring myself to finish the sentence. Wonchul gave my shoulder a light pat as he walked past.
"See you next time."
With that, Wonchul stepped out of the room.
The door clicked shut.
The room was thick with the hot, heavy air left behind by Seeun and Wonchul's lovemaking.
Beneath the silence, I could hear Seeun's breath, still ragged and uneven...
I scrambled.
I tore off my clothes and climbed onto the bed.
Between her thighs, which she couldn't quite bring together, the vagina that had just taken Wonchul's massive cock was still twitching open.
"Se-Seeun."
"...Ah, nnh."
As if my voice had shattered her attempt to compose herself, she stirred.
Seeun rolled over, covering her lower abdomen as if desperately trying to soothe the throbbing ache between her legs.
"Ba... ah... Babe..."
She reached out, wanting me to hold her after everything she had just endured.
Opening her arms, she looked up at me.
A sudden surge of impulse boiled up inside me.
Right now, I had to possess her. I had to hold Seeun, who looked more beautiful than anyone else in the world.
A fleeting thought crossed my mind: I think I finally understand Yeongwoo. But would he understand me right now?
But the thought was quickly drowned out, sinking to the bottom of a rising tide of raw lust.
Had I been jealous watching them have sex? Probably. Yes.
The only reason I couldn't say for sure was because of the strange, twisted satisfaction I felt watching Seeun moan as she was penetrated.
And even now, with Wonchul gone, that feeling hadn't faded.
Far from dying down, it had flared into a massive, unquenchable arousal that pulsed through my entire body.
"Babe... kiss me. Kiss me, please."
Seeun felt it too. I was sure of it.
She was acting with a blatant, coquettish playfulness I had never seen before.
As I kissed her and fondled her breasts, her reactions were far more intense than usual.
Without wasting a second, I rolled on a condom and thrust into Seeun's flushed, swollen vagina.
For hours, we made love over and over again.

As if trying to erase Wonchul's touch, I threw my entire weight into every thrust, using every muscle in my body to drive my cock deep inside her. I had never fucked her like this before.
Whether she loved the intensity or the residual pleasure was still echoing through her body, Seeun didn't try to hold back her cries like she usually did.
After my fourth ejaculation, my memory went blank. We fell asleep tangled in each other's arms, completely exhausted.
We didn't wake up until noon the next day.
We washed up quickly, and just as we were about to leave the room, Seeun tugged on my sleeve.
"...Um, babe."
"Yeah?"
"Could you drive today?"
Drive? I had a license and was perfectly capable, but she was usually the one who insisted on driving.
"I don't mind, but why...?"
The moment I turned to look at her, I understood.
Seeun stood slightly hunched, her thighs trembling weakly as if all the strength had been drained from them.
"...Ahaha..."
I knew exactly what that meant.
Since that day, our relationship had gotten even better. Seriously.
To be honest, I had been a little anxious, but we felt closer than ever before.
The proof was how often we had sex lately.
It wasn't like we rarely did it before, but now, we had sex without fail every single time we met.
And there was another change in Seeun...
"...Okay, here I go...?"
It happened in my studio apartment. Seeun, who had told me to wash up thoroughly before coming out, was waiting for me.
She knelt before me and gently wrapped her hand around my cock, which was already throbbing with excitement.
In the past, she could barely even look at it.
Even though we had been sleeping together for a long time, staring directly at my penis made her face flush bright red.
"It's slightly curved."
"Is it weird?"
"No. Hehe..."
I wondered where she had learned that. She gently stroked my shaft with her soft hand, and though it wasn't overly stimulating yet, it felt incredible.
Finally, Seeun parted her cherry-red lips.
Slurp—

She lightly took my glans into her mouth and looked up at me, as if asking if she was doing it right.
God, it was an insanely cute... and incredibly arousing sight.
I felt bad, but I didn't really know either.
The only difference from when Eunchae did it was that Seeun's teeth kept scraping against my shaft.
But how could I tell her that?
Besides, I didn't even care right now.
Seeun began to bob her head back and forth for me.
The blowjob, which felt a bit dry at first, quickly became slick with her saliva. Though her brow furrowed slightly, her pace gradually quickened.
Suck, slurp... squelch.
Honestly, it was far from a perfect blowjob.
Having experienced what a woman could do with her mouth through Eunchae, I knew the difference.
But the fact that it was Seeun, not Eunchae, servicing my cock...
...made it tens of times more exciting than back then.
"Ah, Seeun... there, underneath... ah!"
Her clumsy tongue accidentally swept across the underside of my glans.
Damn, it was a sensation I had never felt before, and a groan escaped my lips.
Seeing my reaction, Seeun focused on that spot.
Flick, flick, slurp...
"Mgh."
She wrapped her mouth even tighter around the sensitive underside of my shaft.
I instinctively grabbed her hair, but she didn't stop.
As if she had found her rhythm, she sucked greedily on my cock. My balls twitched.
"Ah!"
Unable to hold back, I came right into her mouth.
I had heard somewhere that a man's semen tasted bitter and fishy. I hurriedly pulled out some tissues. Seeun took them with a slight grimace, but...
"...Hehe."
When our eyes met, she gave me a shy, playful smile.
We started trying positions other than missionary. I bent Seeun over for doggystyle, tried sitting up, and side-lying.
She got too embarrassed during cowgirl and quickly got off, but as we explored new things together, we became increasingly absorbed in sex.
On days when we were in top condition, I would make her climax so hard she'd leave claw marks on my back—scars I wore like badges of honor.
The reason for this change was obvious.
Wonchul.
Seeun had felt it too—the atmosphere of the invited man, the netorase play.
She had realized just how far sexual pleasure could go.
Seeun had insisted it would only be a one-time thing, and she never brought it up again.
Yet, the changes that followed had thoroughly integrated into our relationship.
Seeun stared at herself in the bathroom mirror.
Ugh, my mouth still tastes... fishy.
Her first blowjob.
For the first time in her life, she had searched the internet for oral sex and tried to mimic what she saw in videos.
It was clumsy, but he had ended up cumming in her mouth. As she rinsed, a faint smile spread across her face, glad that Minjae seemed satisfied.
Especially his weak spot.
When she licked the sensitive area where the glans met the shaft, Minjae had shivered. Watching him react like that had brought out a playful side of her.
Thinking back to how she was before meeting Minjae, she felt like she had changed so much.
Playing around while holding a man's cock in her mouth?
She felt a belated wave of embarrassment, but...
This is what normal couples do, right?
...she reassured herself.
Realizing she had been too sexually ignorant and conservative, she was trying to make an effort in her own way.
And honestly... it's not that bad.
She had even started initiating sex more often.
Every time she did, Minjae would look surprised before his face lit up with joy. It was so cute and endearing that her affection for him grew day by day.
...Normal?
Suddenly, the image of Wonchul's cock flashed through her mind.
Then came the memory of the motel room—the place she had gone just once, solely for Minjae's sake.
It was an atmosphere she had never experienced in her life.
The casual setting where she sat as Minjae's girlfriend, listening to stories about his military service...
...was actually a stage set for an "invited man" play, a concept she still couldn't fully comprehend.
Recalling that space where the ordinary and the extraordinary blurred together, Seeun frowned in disgust.
Yet, she couldn't stop her mind from drifting back to that night.
She hadn't looked closely, but Wonchul's cock had been massive.
Pleasure? When it was aimed at her vagina, she had felt nothing but tension and fear.
She had accepted that cock with the mindset of sacrificing herself just once for Minjae.
But after it entered her, she couldn't even remember the details clearly—only the overwhelming, intense pleasure remained.
It wasn't that she liked having sex with Wonchul. She didn't know enough about him to say whether she liked it or not.
She only remembered that it didn't feel anything like the warmth she felt when holding Minjae.
Seeun slapped her own cheeks, then quickly put her toothbrush in her mouth.
Are you stupid? Things are so good between us right now.
But the atmosphere of that room where she, Minjae, and Wonchul had gathered...
...refused to leave her head.