The Door Won't Open
"Huh? Why won't the door open?"
— Spuuurt!!
"Hnnghhh?!!"
"Hoooh…."
I couldn't hold it back. I'd fully intended to endure it and push through to the end, but the stimulation from Kwon Yuri's mouth was so overwhelming that I ended up blowing my load before I could stop myself.
'Wow… insane. So this is what it feels like with an actual woman?'
It was on a completely different plane from the twenty-five years I'd spent draining myself with my hand or a silicone onahole. It was overwhelming, electric — like current racing up my spine and straight into my skull. If her mouth alone could do this much, what on earth would the real thing feel like?
Just as that primal curiosity came surging into my head—
"Kgh—! Kk, cough, cough…!!"
"Ah, Yuri…."
"Hoo…. Mmph…."
Kwon Yuri spat out my cock and started coughing. Fair enough, really — having a mouthful of my cum dumped into her without warning would fluster anyone. Besides, hadn't she said she had zero experience? I'm no expert on women, but I was certain that taking a man's load in your mouth isn't easy for a total beginner.
'God, you're a pathetic fuck, Kang Jinwoo. A three-minute curry takes longer than you did — how the hell do you fire one off after a few brushes of her lips?'
Sure, it was my first time touching a real woman's bare skin, but how do you plan to go all the way and then launch it straight into her mouth? Inside, I was heaping curses on my pitiful premature finish and wallowing in self-mockery — but on the outside, I had to keep my expression under control no matter what. If I panicked or turned awkward here, the whole composed, easygoing-Oppa act I'd so carefully built up would come crashing down.
I lowered my gaze to Yuri, kneeling between my legs. Startled, perhaps, by the fishy liquid that had suddenly flooded her mouth, she sat frozen with her cheeks full of cum, wearing a completely lost expression.
My brain spun like mad. Yes — that was it. This was consideration. I'd simply chosen to finish this way out of consideration for a first-timer. Let's go with that. Mind made up, I quickly steadied my breathing and stroked Yuri's hair with the gentlest, softest touch I could manage.
"Yuri, you did so well."
"Mmmgh…?"
"You're the first woman who's ever satisfied me completely with just her mouth. It felt incredible."
The word first, paired with unreserved praise. The moment the words left my mouth, Yuri's cheeks — still stuffed with my cum, still bewildered — flushed red as a ripe apple.
Nice. That came off natural. Riding the momentum, I shamelessly delivered the excuse I'd supposedly prepared in advance.
"And you said earlier that you'd never done anything like this before, right?"
"Y-yes…."
"Making a first-timer take a cock out of nowhere seemed like it would be really hard and painful for you. So out of consideration, I decided we'd start with just your mouth."
At my words, Yuri tilted her head slightly. She seemed unsure whether this was how it was supposed to go, but thanks to the blind-affection passive aimed at me, she also looked secretly moved by my deep thoughtfulness.
Hmm. It's working. Despite being an excuse I'd literally thrown together seconds ago, to her ears it had landed as the words of a tender, considerate man. Good. Now all I had to do was carry my excuse through to its logical conclusion.
"Yuri. For now, don't swallow it or spit it out — keep it in your mouth and follow me, okay?"
"Mmm…?"
"There's something I need to check. I know it's uncomfortable, but just come with me for a moment."
At that, Yuri scrunched her brow and pursed her lips. The taste of cum — the first she'd ever held in her mouth — was clearly a trial for her, but she obediently kept it closed and trailed along behind me.
Having thrown our clothes back on, I walked out to the storefront and gripped the handle of the firmly sealed glass front door.
'Is this thing going to open?'
Honestly, it didn't matter much either way. If the door stayed shut, I'd simply apologize and say that apparently oral didn't count toward the condition. Having just blown my load, I wasn't exactly itching to pound away again — but one look at Kwon Yuri's pussy and my junior would spring right back to life. And if the door did open, I could shamelessly declare that everything had unfolded exactly as I'd planned, and we'd part ways there.
[ The Room You Cannot Leave Unless You Have Sex ]
Honestly, what we'd done with her mouth was still sex by any reasonable measure, so I'd naturally assumed the anomaly's condition had been met. But—
— Rattle, rattle.
"Ah…."
"U-Uh, Oppa…."
Even with me gripping the handle and shaking it, the convenience store's glass door showed no sign whatsoever of opening. So a mouth-pussy wasn't a pussy after all? Apparently this damned anomaly operated on judgment criteria far more conservative and strict than I'd imagined. Nothing short of real sex involving penetration would be recognized. Unbelievable.
'Ah… this is a little awkward, since it's not going the way I planned.'
There I'd been in front of Yuri, playing the smooth, worldly know-it-all. My perfect scenario — finish with her mouth, throw the door open grandly, walk out like a boss — had just cracked straight down the middle. I stole a glance at Kwon Yuri standing beside me, then let out a sigh she couldn't hear.
'Whatever — this is actually a good thing. Means I get to do more, right?'
The door wouldn't open, so I couldn't leave, and to break the rule there was only one real option. And honestly? Finishing with just a blowjob, no matter how sudden the whole convenience store situation had been, was kind of lame. There's an old saying that a man who takes his cock out had better see it through to the end — quitting here would make me barely a man at all.
'Phew. Still, what do I do now?'
Maybe the pleasure of my first ejaculation in twenty-five years had simply been too intense. My junior, which had been standing stiff and proud mere moments ago, had wilted and shriveled the instant it drained, as if none of it had ever happened. No matter how full my head was with primal lust, the body's post-nut cooldown was non-negotiable. In this state, starting round two on the spot was simply impossible.
'Nothing for it, then. I'll rest a little first.'
Putting on my best calm front, I spoke to Yuri in the softest, most tender voice I could muster.
"Yuri, you did wonderfully. I feel amazing thanks to you."
"R-really…? Mmmh—ahh…"
"But since the door still won't open, it looks like we really do have to go all the way to get out."
"Huh…?"
"So, just in case… would you try swallowing the cum you're holding in your mouth?"
At my words, Yuri's eyes went wide. Yeah, fair enough. If someone suddenly ordered you to swallow the load they'd just dumped in your mouth, you'd be startled too. She was probably also wondering why I'd told her to swallow rather than simply spit it out, given that it clearly hadn't ended anything.
Truthfully? There wasn't some grand reason. I just wanted to watch Yuri swallow my cum, I suppose. And more than anything, there was the sliver of a hope that maybe — just maybe — something would change once she got my cum down her throat.
At my question, Yuri's eyes rolled for the briefest moment. Then she squeezed them shut, and her throat bobbed hard.
— Gulp.
"Hnnngh…."
"You okay, Yuri?"
"Y-yes…. It went down… okay…."
With a strained voice, she got every last bit of it down. Smiling in satisfaction, I walked over to the fridge, pulled out a cold bottle of water, and handed it to her.
"You've been through a lot today. Thank you for trusting me and following my lead, Yuri."
"Ah, mm… thank you, Oppa…."
"Anyway, with that done, the door…."
I tried the handle again. Yep. Still locked. I hadn't expected much of it in the first place, so without a trace of disappointment I turned calmly back to Kwon Yuri.
"No luck. Looks like we really do have to go all the way to get out."
"All… the way?"
"Yes. Though I may have pushed myself a bit hard just now — I'm feeling a little tired. Let's rest for exactly thirty minutes, and then…."
I didn't even get to finish.
"Um, Oppa…."
Yuri, breathing raggedly by the counter, looked up at me with a face flushed scarlet. Steeped to the bone in the blind-affection passive, her eyes held the feral gleam of a beast with not a shred of reason left. It felt as if a switch had been flipped, and for an instant goosebumps raced across my skin.
Then she stepped out from behind the counter and stood facing me. With trembling hands she seized the hem of her long skirt — and flipped it all the way up past her waist.
"Uh, Yuri…?"
I tried to keep talking and simply stopped. As the skirt rose, the store's bright fluorescent light laid her bare: white thighs, and the secret place between them, exposed without a shred of modesty.
Her shameless display startled me, sure — but that wasn't why my gaze locked in place. There was nothing where her panties should have been.

'Wh-what…. When did her panties…?'
I stared at Yuri, flustered. Smooth as if waxed, her pink slit was trailing a clear stream of slick down between her legs. Even someone who knew nothing about women could tell at a glance: she was in serious heat.
Twisting her thighs together, shame utterly forgotten, she parted her legs just slightly and showed me her soaked pussy as if presenting it. And then, in a voice so piteous and feverish she seemed about to cry at any moment, she begged.
"Um… my body is, it's feeling a little strange right now… I know this is terribly sudden, but…."
"Yes…?"
"Could you… keep going, just a little more…?"