Risk Level 6: Undine (3)
"Haa... haa..."
I pushed my exhausted body upright, catching my breath, and the sight of the thoroughly disheveled bed filled my vision.

"Ah... ugh... uuu..."
The blanket had long since slid to the floor, the sheets were stained and filthy, and right in the center lay a familiar woman sprawled helplessly, her body twitching every so often as if broken. Like me, she was drenched in sweat from head to toe; her melted expression was framed by damp strands of hair clinging messily to her face. It was a painfully vivid sight. Of course, even I couldn't manage to get it up again right away.
"Huuu..."
The air in the room felt heavy. This sticky atmosphere, a fragmented testament to the violent night we'd spent together, was half-soaked in the fluids we'd spilled and shaken off each other.
...Last night had been no joke. The moment we both became honest with our desires, all pretense of dignity vanished. We stopped caring about maintaining any semblance of cultured humanity. We chased pleasure relentlessly until our limits caught up with us, and kept chasing it. Even now, our bodies hadn't been apart for a single moment.
"..."
Beyond the curtains, a cool draft carried in the bluish light of dawn. Realizing I'd truly pulled an all-nighter made my head spin; fatigue and a touch of dizziness washed over me. My thighs and calves ached. My lower back throbbed. My wrists and palms felt numb, half-floating. Still, my condition was relatively decent compared to hers.
Slrrrp... plop. I finally pulled my cock out of her. It was flushed bright red and half-limp—more swollen than erect. "Did I go too far...?"
The words weren't just about what I'd done to myself. Between her own flushed, swollen folds, her hole—still refusing to close—pulsed and gaped, drooling thick fluids with every breath. It was no surprise after how thoroughly I'd tormented her. In the end, we'd used up every single condom she'd brought.
Scattered around where I sat were the used condoms and torn wrappers, proof of our excess. There had also been several times I'd pulled out and finished on her thighs or stomach without protection. Even so, aside from a faint throbbing, I felt fine. Actually, the throbbing itself was probably the real problem.
'6:17'
After peeling off the last condom and tossing it aside, I checked the time on my phone. It was time to get ready—time to prepare for work. The president had given me time off, and since I was heading to see Nero of my own volition, the exact hour didn't matter much. But for her, it was different.
"...Yerin. Seo Yerin."
She was still moaning weakly from what must have been her umpteenth consecutive climax, pinned beneath me as I kept thrusting without mercy until I was satisfied. I'd used her exactly as she'd begged, but now all that escaped her was the occasional delirious whimper in her sleep. Was this dangerous?
"...Ugh... guh... uht..."
"Hey, Seo Yerin!"
I grabbed her shoulders and shook her while calling her name. She reacted, at least.
"Ah... uuu... nooo..."
Was she telling me to let go? Her eyes were half-lidded, fluttering with effort, her face a mess of exhaustion and haze as she whined like a child. She seemed okay for now.
"You have to go to work. It's already six-thirty."
"Whaa? Already...?"
"Yeah. Time to get up. You should shower before you go."
"...Wanna sleep more..."
Thud.
"You're not getting up, are you?"
"..."
She collapsed back onto the ruined bed, breathing more evenly now, her expression slightly better than before. I sighed, feeling a bit lost about what to do, when—
"Huueng...?"
—I decided it couldn't be helped. I scooped her up in my arms.
"No choice. You're asking me to wash you, right?"
It wasn't the first time.
"Ugh...? Ah...?"
Still half-asleep, I carried the cheeky bunny who'd caused her master so much trouble straight into the bathroom. First, I stripped off her clothes—already soaked with our sweat and further stained by the mess I'd made inside her. Then I wrapped my arms around her slender waist from behind so she could lean on me even in her drowsy state.
When I sprayed lukewarm water from the showerhead, she finally seemed to regain some awareness.
"Where... is this...?"
"You came here on your own two feet. You should remember where."
"Ah... It's Woong..."
She didn't call me "Master" anymore. That burdensome polite speech seemed to have disappeared too. It felt... strangely bittersweet. With sleepy eyes, she confirmed my face and relaxed into my touch, as if reassured.
I decided to wash her body first rather than her hair, worried she'd get water in her eyes, nose, and mouth. Her smooth skin was marked all over from last night's treatment—flushed red in various places. Especially noticeable were the clear handprints and faint bruises on her neck, waist, and buttocks. My gaze wavered.
...Good thing I wasn't getting hard right now.
She accepted my washing hands with obvious pleasure, but the violent aftermath of our sex, left like scars on her body, filled me with regret. Had I gotten too carried away with the mood? This had been her first time, after all.
"Yerin."
"Mm...?"
"About last night..."
"Uht..."
The moment I mentioned last night, her body stiffened unnaturally. She straightened up from where she'd been leaning on me, suddenly silent.
"Yerin...?"
"Th-that... um, I'll wash my own hair now, so..."
This was her way of asking me to leave, wasn't it?
"...Got it. I'll leave your clothes outside the door."
"Mm-hm, thanks..."
With an awkward thank-you, she hurried me out of the bathroom. I didn't mind using the one in the living room, but I couldn't figure out why she was acting like this now. Maybe I should've apologized after all. I lingered by the door for a moment, wondering if I should peek into her thoughts, but it felt wrong, so I shuffled half-asleep toward the living room.
Just like that—
"Ah... You finished showering too?"
After my own shower, I stepped out to find her already waiting in the living room. Because of our size difference, the plain t-shirt and sweatpants that fit me normally looked oversized on her. There was something strangely intimate about seeing a girl wearing my clothes. Thinking back, it had felt pretty good when I'd dressed her in my shirt last time too—though that memory was tainted by the all-nighter I'd spent cleaning up her vomit.
"You'll need something to carry your stuff in, right? I'll get a paper bag. Wait here."
"Yee— I mean, yes."
"...?"
Even though it was just upstairs, I wasn't heartless enough to send her home carrying her black leotard streaked with dried semen and other items soaked in that sticky scent.
"I thought about washing them for you, but I don't know how to clean clothes like that."
"Mm... It's fine."
"Ah, I'll buy you new stockings later. Something nice. Are you okay?"
She'd been avoiding my eyes strangely for a while now. When our gazes finally met, she whipped her head away, and I was certain.
"Mm-hm...! I'm fine, so...!"
'It's embarrassing, so embarrassing, just stop...!'
"What's embarrassing?"
"Hik...?"
'Of course it's...' The fact that she'd only just realized made me ask without thinking, but her reaction was intense.
"I-I really..."
"?"
"I didn't think... I'd pass out..."
Why would that matter?
"You were the one begging me to fuck you until you fainted."
"...!"
'H-he's saying things like that so casually now...'
"Seriously, what's wrong with you? You've been acting weird since earlier."
"Ah... no... don't come closer..."
When I stepped forward to hand her the paper bag, she shrank back as if frightened, trembling.
"What the hell..."
"...Ah... no, you can't..."
"Can't what?"
"This..."
'If I keep being this conscious of it... I won't be able to go back to how things were...'
...So that's what she'd been thinking.
"Of course you can't go back. I distinctly remember giving you a chance last night at the front door."
"..."
'Uwaa... waaa...'
She clamped her mouth shut, screaming internally. It was almost comical.
"And even if you asked me to let you go now, I have no intention of doing so."
"Huh? Uh...?"
"...I'll take responsibility. Did you really think I'd drop you like that and let you roll around in other guys' hands?"
"Uht... aah..."
Maybe it was the fatigue, or maybe I'd become more irritable in my half-dazed state. Or perhaps it was because I'd finally grasped the power dynamic between us. Whatever the reason, my usually cautious lips spoke my thoughts without filter.
"...This is really embarrassing..."
"So what? You like it when it's like this, don't you?"
"That's not... uht... it's not that it's not..."
'After making such a mess of me... kuh... kih...'
"...Kih?"
"Stop eavesdropping on my thoughts whenever you feel like it!"
"What am I supposed to do when I can hear them?"
"That's...! But still..."
Ah, so that's how it was. I roughly understood.
"Woong...?"
My hand shot forward and grabbed her shoulder. She twisted reflexively, but my grip wasn't as considerate as before, so she couldn't easily pull away.
"See? We did all sorts of things last night. How is it we still haven't even kissed once?"
"You...! Youu..."
She looked up at me with a sulky expression, mortified that her embarrassing inner thoughts had been exposed. I felt a strange sense of wonder. I'd thought our night together had been nothing but shock and terror, yet I couldn't understand why I was so attached to her now. Or maybe I actually had a taste for this kind of thing after all... No, that couldn't be it, right?
"If you'd said something, I would've done it right away. We were too busy enjoying everything else yesterday."
"...Uuu..."
'Woong's suddenly become so sly...'
I'd vaguely sensed that she yearned for the kinds of things normal girls her age did—dating, romance, even just friendship. We'd gone on a date of sorts, but the fact that she'd experienced her first time before her first kiss had apparently bothered her once everything was over.
...She's really cute.
"Are you trying to make things difficult? We just finished showering..."
"...What did I..."
Even her sleepy, primly narrowed eyes began to crumble little by little under my gaze.
"..."
When I refused to look away, her eyes eventually grew moist and downcast. Yet she still blushed so diligently that an arrogant thought crossed my mind: this female had definitely fallen into my hands.
"Come here."
I deliberately stopped one step short of her, releasing her shoulder. I was giving her a choice. If she didn't want this, she could step back. If she wanted me, she only needed to take one step forward. But I had a strong conviction she couldn't refuse me. The reason was simple...
I'd already spent last night carefully training her to my tastes.
"...Come here."
Twitch...!
At my calm, quiet voice, her wide eyes wavered helplessly. She bit her lip, perhaps wondering once more if this was really okay, but in the end those small lips parted with a timid answer.
"...Yes..."
She couldn't dismiss last night as a single reckless fling after all. To reward her for choosing me and stepping forward, I bent down to match her eye level. There was no hesitation.
"Uht... chuu... uht."
'Ah... this... the height difference... I definitely thought it was exciting before, but now...'
"...Now what?"
"N-now... it feels like... a huge beast is... covering me..."
'It's scary... I want to run away... but strangely, it feels good...'
"...Your heart's pounding?"
"Nyehehet... uht, chuup."
The order might have been backwards, but I gently explored her small, plump lips with my own—lips I'd already claimed countless times—and she let out another pleased sound.
"Hut...!"
When I crushed her against me so she couldn't escape, her reaction grew even more obvious. This... wasn't good.
"Huu... If we keep going, it'll be trouble again. We're out of condoms."
"Ah..."
'He really... used them all... so many... all of them... on me...'
"And don't get my clothes wet down there. They're mine."
"Uht..."
Smack!
"Kyaa?!"
"Let's get to work. You'd better take a taxi today."
As I let her go, I gave her firm butt a light pat—conveniently within reach—and the cute yelp that escaped her was quite satisfying.
"Wait... just a second...!"
"Hm?"
I was about to get dressed when she unexpectedly called me back. Then she started blurting out words I hadn't asked for, her voice hurried.
"I... I just hadn't met the man I wanted yet, but... I did want to experience it quickly..."
'Someone who's usually kind and gentle... but when we're alone, can treat me roughly, like a tool...'
If someone kind and gentle only turned like that when alone, didn't that mean they had mental issues? Unless they'd committed some grave sin against her... Besides, he wasn't even kind and gentle to begin with.
Well, anyway, I understood she'd been starving for it. She'd probably been chained to work at the company and under constant surveillance outside, unable to meet anyone properly. On top of that, because of her ability, she couldn't even hope to form deep relationships with others.
"I know. It showed... So I'm that man you wanted, huh?"
More accurately, the master she'd wanted, but whatever. When I pointed at myself with my index finger as if seeking confirmation, she flushed even deeper, thinking I was teasing her, and let out a shrill cry. It was adorable, like a tiny animal barking in a desperate attempt to threaten.
"Uht, so... in front of any other guy besides you, I won't ever lose control...!"
"...Oh."
She muttered the next part so softly it was almost inaudible, but in the quiet morning, I still heard it.
"...And I... I'm pretty picky about height and faces and stuff..."
Thud.
"...?"
I dropped the pants I'd just picked up. She looked puzzled at the clothes falling limply from my hands, but it was because I was worried they might be too tight to wear like this.
"Maybe I should do it one more time after all?"
"Eht.."