Quenching Her Thirst
"Sis... are you asleep?"
Just as I was imagining all the dirty ways I could play with the new achievement I had unlocked...
Bzzzzzz!
My phone vibrated on the desk.
Checking the screen, I saw a message from Han Jia.
Since it's our first dungeon together, I looked for a safe one, even if it might take a bit longer to clear! It's a Green Gate with a large entrance! Apparently, the terrain is field-type!
The larger the gate's entrance, the larger the dungeon inside.
While the exact danger level of a gate can't be perfectly predicted, it's measured by analyzing the waves of magical energy radiating from it.
After this initial measurement, a suitable raid team is formed. Once the first clear is complete, the remaining gate is evaluated and color-coded by danger level, from lowest to highest: Green, Yellow, Red, Blue, and Black.
The Green Gates we were heading to are highly popular among beginners, low-level Awakeners, those whose traits aren't suited for combat, or people who just want a smooth, easy run.
Of course, no dungeon is completely safe. The world is in a state of constant upheaval, and deaths and disappearances are a daily occurrence—both inside and outside the gates.
Gates are generally divided into hostile dungeons and portals to other worlds. We currently coexist with various races that have emerged from them, like elves and beastkin.
However, even if a portal doesn't lead to an actively hostile dungeon, if the races of that connected world are savage or dangerous, exchange is limited. In those cases, the gate's entrance is usually blockaded and heavily monitored.
Furthermore, even among friendly races, individuals can have erratic personalities or turn out to be anomalies, so one can never let their guard down.
Dungeons also don't always spawn with the exact same terrain just because they've been cleared before; it's more like they share the same world setting.
Because of this, as you keep running dungeons, you'll occasionally encounter rare monsters that weren't discovered during the first clear.
It seems those rare monsters fetch quite a high price. They're used for research on unknown species, or sometimes... for rather bizarre hobbies.
In any case, because we live in an era of great chaos, the laws and infrastructure are still far from perfect.
There are even rumors that races like elves are secretly kidnapped and sold on the black market.
According to what Jia just told me over the phone, the dungeon we're heading to isn't a typical dungeon.
Green dungeons are so popular that they're hard to come by, and since our party members wanted something that felt like a real adventure, we ended up with a field-type dungeon.
I suppose for their first dungeon, they wanted an exotic landscape and an adventure across vast plains rather than a damp, gloomy cave or some depressing ruins.
Honestly, I was looking forward to that kind of experience too.
Since our party leader, Han Jia, said she would handle the rations, all I needed to do was bring the weapon that was arriving tomorrow.
To be frank, whenever I go somewhere, I usually just show up with the clothes on my back. I'm not much of a planner.
It's not like I haven't gotten into trouble because of that habit before, though.
Still, I should at least pack some water in my bag!
Potions and other magical tools are too expensive for novice adventurers like us to afford.
Alright, that should do it... even though the only thing I've packed so far is water.
Time for bed!
I had a nice, satisfying release today, so I need to get some proper rest.
Hmm... looks like my semen toilet is working hard...
Might as well dump the points into Strength.
My daily routine of eating, sleeping, and shitting like a brainless animal hadn't changed much—only the frequency, volume, and target of a specific kind of 'excretion' had.
Besides, I knew I was going to sleep like a baby tonight.
The sister who used to be the bane of my existence had been reduced to a submissive, obedient toilet, completely at my disposal!
Maybe I should wake her up with a morning blowjob?
“Mmmph...”
With that final thought, I drifted off to sleep.
...
..
.
It was an hour when most people would still be fast asleep.
I had been dead to the world just a moment ago myself...
But a sudden, pressing urge to pee woke me up.
As I stumbled toward the bathroom, still half-asleep, a wicked thought crossed my mind. I have a brand-new toilet now. Why waste a single drop of piss?
I redirected my steps and headed straight for my sister's room.
Opening the door, I saw her sleeping with her mouth slightly open. Thanks to the trait's influence, almost none of the semen had leaked out.
Even after two days, my cum remained perfectly preserved inside her mouth, fermenting into an even riper, muskier scent.
To think she could sleep like that...
“Sis... are you asleep?”
I knew she was dead to the world, but I asked anyway.
It was honestly amazing that she could sleep so soundly with her hair, clothes, face, mouth, pussy, and anus stuffed to the brim with my fluids.
I guess humans really are creatures of habit.
She looked so peaceful and pretty, breathing softly in her sleep.
“Zzzzz... Zzzzzzzz...”
With her cheeks puffed out from holding all that semen, she looked just like a hamster.
Perhaps because the aphrodisiac and pheromone effects of my bodily fluids were still working on her even while she slept, her face was flushed a deep crimson.
Hehe, Sis is so cute...
I slipped my fingers into her sleeping mouth, prying her lips and teeth apart.
Then, I unzipped my pants, shoved my cock inside, and savored the warm, velvety texture of her mouth.
“Ah... ah... it's coming...”
Feeling a foreign object invading her throat, Hanna began to stir.
But by the time her eyes fluttered open, it was already too late.
Pssssssssssss...
“……!?”
“Mmph! Mgh! Bub-ub-ub!?”
The hot, pressurized urine from my bladder blasted directly into her mouth.
Geez... be careful, will you? You're splashing it all over the headboard.
I mentally blamed her with that utterly absurd thought.
Then, out of the pure, kind-hearted desire to keep her bed from getting any dirtier, I grabbed her head and held it firmly in place.
Still dazed and disoriented, Hanna could do nothing but stare at me with wide, trembling eyes as she swallowed the torrent of piss.
As her mouth filled to the brim, I shoved my cock all the way down to her throat, sealing her lips with my pubic bone to prevent a single drop from spilling.
“…..!? ……..! …….!!”
Drip... trickle...
After squeezing out the very last drops, I waited until I was sure she had swallowed every bit of it before finally pulling my cock out.
Unique Achievement Unlocked!
+1 Random Stat Point
+1 Mana
“Ah... that felt good...”
“Mmph! Hic... Sob! Seriously...! You're horrible...!”
Oh dear... I guess I really startled her.
I wiped my wet cock all over her face, stroking her hair to comfort her. Feeling thoroughly refreshed, I turned to head back to my room.
As I rubbed my shaft against her face, she tried to hide it, but her heavy, hot breaths and the subtle twitch of her lips curving upward gave her away.
She didn't even tell me to stop. She just lay there, taking it all.
Thanks to the effects of my fluids, she would probably end up loving this foul stench of piss, even if she found it disgusting at first.
She'd probably grow to love the smell of my urine and semen stained on her bedsheets, too.
Now that she's tasted my piss once, she'll have no trouble drinking it out of the plastic bottles I give her in the future.
Besides, she literally can't quench her thirst with regular water anymore.
Still, this achievement is pretty twisted.
It doesn't make her magically love the taste of piss; it just cuts off all other sources of hydration to force her to drink it.
Which means the disgust and suffering of drinking piss will never actually go away.
I felt a slight shiver run down my spine at how sadistic the system's design was.
Where did this trait even come from?
Well... not like it's my problem.
Now that my bladder is empty, time to get back to sleep.
I have to head to the dungeon in two days, so I need to rest up and conserve my strength.
“*Zzzzz...*”
The moment my head hit the pillow, I fell fast asleep.
............
...........
...
“Mmm... Yawn! Is it morning already...?”
I opened my eyes to see bright sunlight streaming into my room.
Judging by the light, anyone with a normal job would have already left for work!
While I was asleep, my semen toilet had been working diligently!
“*Slurp... slurp... lick...*”
A strange, wet sound echoed from somewhere near my lower half.
What the hell is that?