Urine Mineral Water (2)
The early morning air still carried the chill of dawn.
I staggered through the classroom door, still reeling in shock from what had happened at the crack of dawn.
…Please, someone tell me it was all a dream… There’s no way something like that could actually happen in real life…
But the moment I opened the door, there was Hyun-ah standing right in the middle of the classroom wearing nothing but her underwear.
She seemed to be in the middle of changing. Her school shirt was only halfway on, sleeves dangling from her arms, leaving her in just a bra.
Her chest, buried inside an old-looking flesh-colored bra, was so large that I couldn’t help but gasp inwardly.
I never noticed when she was dressed… Hyun-ah’s actually huge…
Hyun-ah hadn’t noticed me yet. She was pinching the soft flesh of her belly with a critical frown when she suddenly spotted me and let out a startled yelp.
“Ah, shit! You scared me! H-how long have you been standing there?”
Her face flushed with embarrassment at having her flaws exposed. She fumbled awkwardly, quickly covering her stomach with her shirt. Even though her bra was still fully visible, she didn’t seem to mind that part at all.
I swallowed hard, desperately averting my eyes as I mumbled an excuse.
“…I just walked in.”
“R-really? Then it’s fine.”
She started to finish changing, but then abruptly covered her belly again and snapped.
“Don’t look! I’ll kill you, you bastard!”
“U-ugh… Okay, I won’t look.”
I hung my head low and deliberately turned my gaze away as I cautiously made my way to my seat. Only then did Hyun-ah resume changing.
In truth, our cram school held a physical fitness session once a week.
Some might wonder why grown students needed physical training, but it was considered essential to endure the brutal life of exam preparation.
The class was nothing fancy—just repetitive exercises meant to build basic stamina.
For example, shuttle runs like the one we had today.
Running back and forth between two cones like a hamster on a wheel was absolute torture for someone with terrible stamina like me.
And I couldn’t even slack off. If your score on the fitness test was too low, you’d have to stay behind for supplementary training.
The thought of being forced to endure that hellish punishment every single day after class was enough to make me run like my life depended on it.
That was why Hyun-ah had changed into her gym clothes so early in the morning.
When she put on her gym bottoms, she first slipped the pants on underneath her skirt before pulling the skirt back down. But then, without warning, she yanked the skirt off and slapped it right over my face.
She giggled mischievously.
“…That’s your punishment for peeking earlier. If you take it off, you’re dead.”
“E-eek…”
Suddenly wearing a girl’s skirt over my head, my face burned with humiliation.
Yet despite that, the sharp, feminine pheromone scent clinging to the inside of Hyun-ah’s skirt flooded my nose, making my head spin with arousal.
When she saw me squirming, desperately trying to hide my growing erection, Hyun-ah smiled with clear satisfaction.
Soon the classroom filled with the lively chatter of girls changing into their gym clothes.
Since the entire class was girls except for me, they had zero hesitation about stripping down to their underwear right in front of me.
In fact, I was the one who ended up awkwardly gathering my things and heading to the bathroom to change.
But just as I tried to leave the room, Hyun-ah suddenly grabbed me from behind in a tight hug.
“Partner! Where are you going? Aren’t you going to change?”
“Ah, ahaha… I’ll just change in the bathroom…”
“Hmm~? Everyone else is changing here, but you’re gonna run off by yourself? You’ve got a dick and you’re still embarrassed? Just take it off already, huh? Hehe…”
As she spoke, her hand slid over my pants and began stroking my cock.
Every time her fingers brushed against the sensitive areas, my body shivered violently. I swallowed hard and said,
“B-but… even so…”
“Just change here.”
The moment she gave me that chilling look and spoke in that low voice, I flinched and nodded frantically.
Reluctantly, I slowly pulled my pants down. The underwear soaked with precum was now completely exposed.
While Hyun-ah and the other girls in class giggled and stared at my wet underwear, I burned with unbearable shame and hurriedly changed clothes.
From a distance, Min-ha watched me with slightly flushed cheeks, stealing glances.
By the time we finally finished changing and started the fitness training, I no longer had the luxury of worrying about anything else.
After running dozens of torturous laps, my mind simply went blank.
The only things I could feel were the heart-exploding pain in my chest and an overwhelming, unbearable thirst.
Water…! I want water…! I want to chug an entire cold bottle of mineral water…! God, I’m really going to die…!
After running nonstop for nearly thirty minutes with that thought looping in my head, I somehow barely managed to cross the passing line.
Completely exhausted, I collapsed spread-eagle on the gym floor, gasping for air.
“Haah… haah… haaaah… Hoo… hoo…”
Sweat poured off me like rain. My entire body was sticky, as if I’d just taken a shower.
The heavy, dripping sweat only made my already terrible thirst even worse.
I staggered to my feet and headed toward the water dispenser in the corner of the gym.
That was when someone suddenly hugged me tightly from behind. I turned around, and of course, it was Hyun-ah.
She had run just as hard as I had. Her face was flushed bright red, and sweat poured down her entire body.
Still, she seemed to have more energy left than me. She grinned and laughed.
“Hey, partner! I’m dying of thirst. Hurry up and give me something cold to drink!”
“Uh… Th-there’s a water dispenser over there…”
I pointed awkwardly at the dispenser in the corner. Hyun-ah looked at me like I was crazy and shot back,
“What? What the hell are you saying? I’m dying of thirst, so stop talking nonsense and give me your piss already!”
Without hesitation, she reached down to yank my pants off. I panicked and desperately resisted, shouting,
“W-wait…! Just wait a second…! So last night… it wasn’t a dream…?”
“What have you been babbling about? Hurry up and take your pants off! I’m seriously about to die of thirst!”
She finally succeeded in pulling my pants down. My cock, now fully erect, pressed firmly against her cheek.
Hyun-ah smiled with deep satisfaction. Out of habit, she gave my shaft a few light taps up and down, then opened her mouth wide, clearly demanding I piss into it.
Common sense alteration in effect
Effect:Male urine is perceived as clean, refreshing, high-quality drinking water — especially desirable after intense physical activity.
Current State:Highly concentrated, golden-yellow urine after heavy sweating
With both hands cupped neatly under her chin like a polite receiver, the sight was so erotic I thought I would lose my mind.
T-that Hyun-ah… sitting there politely with her hands together and mouth open, waiting to receive my stream of piss… It’s way too dirty. My brain is going to melt…
I struggled to calm my pounding heart and carefully aimed the tip of my cock at her open mouth.
Once again, reason and desire waged a fierce battle until the very last second.
From this point on, pissing into Hyun-ah’s mouth is one hundred percent my choice… There’s no excuse… Is it really okay to do something like this to another person…? Ugh…
There was one more reason I hesitated even more this time: the concentration of my urine.
In the early dawn, I had drunk a lot of water right before bed, so my piss had been relatively thin and watery. But now, after sweating buckets, it was certain to be highly concentrated, deep golden-yellow piss.
It would definitely taste stronger and smell far worse. I wasn’t sure if it was okay to make Hyun-ah drink something like that.
But while I hesitated, Hyun-ah’s patience had clearly run out.
She scrunched her face into a terrifying scowl and began cutely nibbling on my glans with her front teeth, as if expressing her dissatisfaction. Finally, I couldn’t hold it any longer and released my urine.
Sssssshhh… Shaaaaah…
“Ugh…!! O-ohhh… Haa… Haa… Haa…”
A lewd pleasure completely different from ejaculation flooded my mind so thoroughly I couldn’t think straight.
I had never imagined that feeding someone the filthiest fluid from my body could feel this arousing and perverted.
“…Mmm… Nn… Gulp… Gulp… Slurp… Slurp.”
With her eyes closed, Hyun-ah diligently drank every drop of my thick piss, even licking up the stray droplets that had splashed onto her lips with her tongue.
She then sucked the last remaining drops cleanly from my urethra, as if drinking through a straw.
After finishing, Hyun-ah staggered to her feet and muttered,
“…Ugh, shit… The smell of male piss… My head’s spinning…”
“A-are you okay…?”
I asked in a worried tone, but inside, my heart was pounding wildly as I recalled what I had just done into that very mouth.
Hyun-ah raised an eyebrow and smirked.
“I’m fine, but what about the others? Everyone’s probably thirsty…”
She glanced sideways toward Min-ha. The girl, who had been watching from afar, frowned slightly.
Then she strode over, shoved Hyun-ah aside, and dropped heavily to her knees.
“…I’m thirsty too. Give me your piss.”
“W-wait, but…! I just went, there’s nothing left…”
“What…? You gave it to her but not to me…?”
“N-no, I can’t help it… It has to come out first before I can give more…”
Min-ha shot Hyun-ah a jealous glare and muttered,
“…Then at least give me your cum. There’s still some of your piss mixed in there, right?”
“W-what… Ahh…”
Without another word, Min-ha took the tip of my cock into her mouth and began stroking it roughly, jerking me off with aggressive, rapid movements. She eventually forced out the yellowish semen mixed with residual urine and swallowed every single drop without wasting any.