A Game of Taboo Desires
“……”
My mind was foggy, as if wrapped in mist. Even if someone shoved a simple arithmetic problem in front of me right now, I probably couldn’t solve it.
Of course, the computational ability of a grand mage shouldn’t be paralyzed that easily… but the relentless secretion of dopamine inside my brain was undeniably terrifying.
If the liquid flowing through my veins wasn’t blood but dopamine, wouldn’t it feel exactly like this?
Like the fizzing sensation of drinking carbonated water—except the fizzing was happening right inside my skull, as if it were about to explode.
“……” Hah… hah.
In the end, I couldn’t hold it back and had to let out a deep sigh. My breath control was off, which made sense given how much I was feeling.
That was proof enough of my excitement.
I looked down at Roti through my hazy eyes. Right now, she was hugging my thigh with both arms, her face flushed with passion, wearing that heated smile of hers…
“Mmm… ah… ugh…”
Feel… good?
“……”
She was devouring my cock without mercy, licking and sucking with her mouth and tongue.
‘I’m going to lose my mind.’
I stared down at her. She was asking that cheeky question again, but I couldn’t answer. I just bit my lip and kept looking.
Even so, Roti didn’t show any signs of getting frustrated. Instead, she seemed to interpret my silence as consent. She narrowed her eyes, playfully stuck out her tongue, and kept going.
For a while, she held my shaft down with her hands and pleasured me thoroughly with her mouth and tongue. Then she suddenly pulled her head back.
Was she getting tired already? I could understand why—she hadn’t been in an easy position or anything.
Just as I was wondering how to recover my stamina, she felt awkward.
“Um, Oppa.”
“……Huh?”
Roti wiped away the sticky saliva that had dripped from the corner of my mouth—probably my own pre-cum—and used me as a support to sit up.
She jumped onto the bed, landed with a bounce, and then patted the spot right beside her.
“Lie down.”
“What?”
“Lie down so we can continue. Thinking about it, the rules of this bet say that one-sided attacks are allowed, right?”
“……Ah.”
“So.”
I gave her a dazed look at the fact I hadn’t realized. Roti flipped her hair back and tied it into a single ponytail with a crimson hair tie that seemed to come out of nowhere.
Right after braiding the blood-red strand into her light-blue hair to make it look pretty.
“You do it too.”
Roti gave me a mischievous smile and gestured toward the area below me.
That place. Still naked, with sticky fluids flowing freely. For a girl, the most private and secret body part. She pointed at it and added, “Suck. I’ll lick you back.”
“……”
I stared at her in shock, unable to say anything. But Roti didn’t care at all. She yanked me down forcefully.
Plop!
“……Ah……”
I ended up lying on my back on the bed. More precisely, I was lying with my back on the sheets, looking up at Roti who had blocked both my sides with her arms.
“You’re really—”
But that wasn’t the final position. Just as I was about to show my bewilderment at this speed of development.
“Heh.”
“Done.”
Finally, Roti climbed on top of me. She didn’t climb gently—she jumped onto my face like she was trying to shut my mouth.
I reflexively raised my arms to cover my eyes. Maybe it was because being so close to her felt almost shameful, like a rare sight.
“……Why cover your eyes again? You’ve done everything else, now you’re doing this?”
Roti, who was still gripping my cock, muttered in disbelief, but it wasn’t that easy.
I had already experienced the normal position—often called the top position. But right now, it was completely different.
In other words… Roti wasn’t simply climbing on top of me.
She was being incredibly flexible, stretching her body in every direction so that her lower half was right in front of my mouth, and her upper half—including her hands—was positioned perfectly to grab my cock.
That was the 69 position. Isn’t that how it’s called in slang?
‘Where the hell did she learn this…?’
I started to feel my head getting dizzy. After moving my arms away from my eyes, I had no choice but to pull Roti’s hips toward me.
……Just how did I end up in this situation? Shouldn’t I be submitting to lust by now?
It was still a philosophical puzzle whose answer I couldn’t know, but it didn’t really matter.
The very fact that I could now use my mouth to torment the other person in this physical contact had made me more excited than ever.
“Haha……”
Simply put.
‘Is this twisted disposition inherited from the same bloodline as my sister’s?’
Whether Roti, who charged at me with crude words, or me, who seemed to push her away while secretly enjoying the taboo thrill.
Slurp……!
“……Ngh, ugh!?”
Maybe it didn’t matter much. Or rather, wasn’t Roti, who showed such honest desire, the better one?
I instantly wiped away all those random thoughts. By swallowing my sister’s breasts like they were the most slippery cock in the world.
“O-Op…?”
I swallowed the sticky fluids dripping down, treating the transparent liquid like a holy drink…
“——Hic!?”
Right after, I buried my tongue deep inside her.
Roti let out a short moan and straightened her back. Instinctively, her body tried to pull away, but I had no intention of letting go of her.
I didn’t know if it was a hallucination in my brain or reality, but I savored the sweet scent of her repeatedly and curled the corners of my mouth.
“……Why? You asked me to suck you. That’s why I’m doing it.”
“A, ah, ng, hah…! If you start like that all of a sudden……”
Roti glared at me with eyes full of malice and turned away. Still, the only thing I could say back was one sentence.
“Well, wasn’t what we were doing earlier a fair competition match?”
“H, haa……?”
“If you’re dissatisfied, then you should’ve started first. No need to complain and cause noise.”
“……”
Roti clamped her mouth shut. Her gaze, which was looking back at me with a tilted head, began to burn like flames.
‘What.’
I was proud of it. After all, this game had started with a bet. I smirked to provoke her even more.
“……! This, this……”
As expected, Roti’s face turned bright red from my provocation. Even though it was a common blushing, right now her temper seemed different.
“Oppa is really going to get scolded until she learns her lesson. You think you can, huh?!”
Yeah, no. I wasn’t listening. I wasn’t going to listen. Go away.
I quickly stirred inside her.
This time, instead of my tongue, it was the tip of my finger.
Roti, who was close to climax, didn’t stop glaring at me fiercely while panting lewdly.
“Haa, ha, ugh……”
She wriggled once on top of me, then pulled her tongue out with a wet sound.
“……Yeah. Whether Oppa wins or I win, let’s see who can take it first. Just do it quickly, really… ugh.”
Right after, I watched my sister swallow my now rock-hard cock.
At this moment, when I could see my sister licking and sucking the very tip of the view—
I felt my heartbeat racing to the extreme while gently stroking Roti’s hips.
“……Ugh?!”
I knew she was so sensitive that even the smallest touch could stimulate her.
“Sorry, but Roti.”
“……Ngh, ah, heh.”
“This time, I think I’ll win, don’t you?”
“Wai, wa, caa——?!”
“That’s why you should have started first.”
I instinctively realized it was almost over and pushed my finger in first. Then I added my tongue inside as well.
While the salty taste mixed with the sudden sweetness, my lower body twitched, but victory was still mine.
“Ah, hic?! Hggh……”
Phut, phu-shot! Phut!
With just one insertion of both finger and tongue, Roti reached her climax spectacularly.
My cock had lost the strength to suck anymore. Her beautiful eyes rolled back in ecstasy.
“Hggh, ng, ugh, quck, agh.”
Her waist curved like a bow, and her lower abdomen trembled intermittently.
The fountain that erupted soaked my entire face, but I wasn’t disgusted.
On the contrary, I was satisfied that I had sent her off so beautifully.
I gently raised my upper body and lightly tapped Roti’s hips with my hand.
“……?! Ex, haa.”
“Ah, um.”
Even that touch had stimulated her… Her womanly state, which had almost stopped, restarted again.
Small problems like that didn’t matter. The important thing was that I was the winner of this bet.
I pulled Roti’s waist toward me with a satisfied smile.
“How was it? Charlotte.”
“……Ugh, hix.”
“This time, you lost. Completely.”
“……U……”
“Now you have to listen to Oppa?”
Thud!
Roti smacked her forehead hard with her palm as if she couldn’t believe it. She kept her mouth shut for a while, but I wasn’t worried at all.
After all, even though she was a troublesome younger sister who caused me a lot of trouble, she wasn’t the kind of person who wouldn’t accept defeat after a result was shown at least once.
Since I knew that well, I smiled subtly. Soon after, Roti clicked her tongue in annoyance and reached out beside her.
Uuuung!
Magic power vibrated once. Soon, the crimson aura took the shape of a hand and pulled something from far away.
While Roti was glaring at me with a sullen face, she didn’t neglect to tear open the wrapping with her teeth.
Crack……!
A single condom piece fell in front of me.
Roti crossed her arms and said bluntly, “I don’t feel like using it. So.”
“……”
“……Quickly, put it on by yourself…”
While carefully trailing off at the end of her sentence, she lay on the spot and spread her legs shyly with both hands.
Roti, with her face flushed red, delivered her request to me.
“Put it in. Hurry up.”