The Prisoner's Dilemma 5
It seems my line of thinking finally bore fruit. At least for this moment, my sister had devolved into a bitch right before my eyes.
“Master’s cock… it’s so huge…♥!! Oh, it’s twitching like it’s about to cum, ah, it’s wriggling. Don’t cum yet, please…!”
“Do you like Master’s cock, Mina?”
“I love it… it’s the best…♥!!”
Thwack! Thwack! Thwack! Thwack!
“I’m cumming again…! I’m cumming from Master’s extra-large cock…!”
“Ngh, hold it! Master feels like he’s about to cum, too.”
“Nooo… I can’t hold this, oooooh…! Getting impaled by Master’s extra-large cock while trying to hold back a cunt orgasm, ohooooh…♥!! It’s absolutely impossible…!”
I didn’t stop thrusting even as I listened to her desperate pleas.
“If you don’t hold it, I’m confiscating your cock privileges. Let’s hold it for just ten seconds, okay? Understand?”
I spoke gently, feeling I’d been a bit too harsh with the whip, and my sister nodded, struggling to keep her composure.
“Hoo, hoo.”
Mina-nuna gasped, throwing her head back every time my cock slammed into her. I could see her determination not to have her cock privileges revoked.
Slurp-slurp-slurp-slurp♥
“Oh, oh, oh♥. When are you going to cum… please cum quickly, oooooh♥, I don’t want my cock privileges taken away…”
“Ah, I can’t hold back much longer.”
Perhaps sensing the tremors of my cock as I neared climax, she reached out her arms and stuck out her tongue. It was a signal that she wanted to kiss while she came.
I pinned her knees back with my shoulders, bracing myself, and planted my hands on either side of her head. I thrust my hips down in a push-up position and stuck out my tongue. She wrapped her arms around my neck with effort, lifted her head, and took my tongue into her mouth.
“Chuu-p, chuu-p…♥”
“I’m cumming!”
“Cum for me…! Fill me up with Master’s cum, fill me up…♥♥♥!!”
“Nuna!! You cum too!!”
“Oooooh, the hot stuff is coming…♥! Keep kissing me, keep kissing me… slurp… chomp♥!”
Splurt! Gush!
Like a dam breaking, my cum flowed out in torrents.
“Ugh-hnnn…♥!!!!”
Tremble-tremble-tremble-tremble.
My sister writhed in pleasure, her womb getting a hot shower of semen. I kept my cock buried to the hilt, fully savoring the spasms of her climaxing cunt.
Squish! Squish!
“…Haa, haa. Now… gulp, let me rest for a bit.”
“Hoo.”
Nuna asked for a break in a raspy voice. I pressed my glans firmly against the entrance of her womb and rotated my hips, milking out the remaining semen.
“Anna. Bring me a glass of water.”
“…Yes.”
Anna walked over carefully, holding a cup at my request. Looking closely, I could see her maid outfit was completely soaked.
“…Anna, you’re quite the pervert, aren’t you? I’ll definitely do it with you next time. I’ll make time just for you.”
“Th-thank you…♥!”
I took the cup from the overjoyed Anna. Nuna’s gaze was fixed on the cup in my hand the entire time.
“Come to think of it, Nuna. How long have you been tied up?”
“…Since last night.”
“…Tsk. That must have been tough.”
“I seriously almost died.”
Mina-nuna whined in a raspy voice. I cooed at her and stroked her hair.
“Oh, poor thing. You had such a hard time.”
“…I’m going to kill you, seriously.”
Her expression returned to the fierce look she’d had before sex, but for some reason, it didn’t carry the same weight as before. Perhaps it was because I had already seen her broken state.
I filled my mouth with the water from the cup. It was ice-cold, enough to jolt anyone awake. I leaned in and pressed my lips to hers, forcing the water into her mouth. She opened her lips with an annoyed expression.
“Slurp, gulp, gulp, don’t move your tongue, gulp… phew…!”
No matter how annoyed she acted, it didn’t bother me. It was time to return to the roles of bitch and master, and I knew she would throw herself back into that role once we started again.
‘I think I know Nuna’s true weakness now.’
Nuna is a tyrant who wants to dominate men. Perhaps it’s because no man worthy of dominating her had appeared until now.
‘You don’t have the right to treat me like a woman. So, do as I say.’
She was that confident, a magnificent woman who lived up to that attitude. And yet, here she was now, lying beneath me with the happiest expression I’d ever seen.
Thwack! Thwack! Thwack! Thwack! Thwack! Thwack! Thwack! Thwack!
“Ogo-gok…♥ your cock, it’s so deep! Pierce through… and enter my womb…!”
“Do you like having your cunt stretched out by your younger brother?”
“I love it!! The only cock that can stretch my cunt is my brother’s!”
When I hit her from behind, she shook her head and confessed how good her cunt felt.
Squish-squish-squish-squish-squish-squish♥
Every time my pubic bone collided with Mina-nuna’s large, firm buttocks, ripples spread across her taut yet soft skin.
Thwack! Thwack! Thwack! Thwack!
“Oooooh♥ touch my breasts too…!”
Every time I thrust with force, I could see her firm breasts swaying wildly. My hands naturally began to knead and squeeze them, starting a game of tactile play.
Knead. Squeeze.
I rubbed her breasts, gripping them tightly and pulling at them. All the while, I never stopped rocking my hips back and forth.
Slurp-squish-slurp-squish-slurp-squish♥
“Ohooooooh!!”
My thick cock and her tight cunt created a fantastic synergy. Nuna, the greatest beneficiary and victim of this, had been leaking cunt juice and climaxing repeatedly for a while now.
“Nooo… ngh-it…♥!! Stop hitting my clit with your balls…!!!”
My heavy balls were slapping against her clitoris with every movement of my hips.
Thump.
Eventually, Nuna lost the strength to support her upper body and collapsed onto the bed, but—
Thwack! Thwack! Thwack! Thwack! Thwack!
“Ugh-oh, haaaang♥”
My cock never stopped. Even as she collapsed onto the bed, my hips followed, thrusting into her cunt with exquisite precision. The sheer dominance of my technique was enough to surprise even me.
“Nooo…♥!! I can’t beat this cock, ugh-gok…♥!! As a bitch slave whose cunt has been defeated by Master… ugh-ok…♥ I have no choice but to lose….”
“Then, did you think a mere cunt could beat Master’s cock? Take that! Take that! Keep being my cunt slave from now on!”
“I will… h-hoooch…♥!! I will, so please, go slowly… the way you’re stabbing my cunt, ho-gok…♥!! It’s too fast….”
Slurp-squish-slurp-squish
“If you’re a cunt, act like one and clench tight so you can make Master cum!”
“Yes, y-yes! I’ll clench! I’ll clench Master’s cock with my cunt…♥!”
Realizing that she could only rest if she made me cum quickly, the cunt slave wiggled her pussy with all her might. Every time she did, her vaginal walls twisted and churned, milking my cock. As my cock, desperate for release, twitched, her cunt pulled at it with everything it had.
“Ngh…! I’m cumming into Mina-nuna’s bottomless cunt!”
“My cunt…♥ I’m cumming again…!!!”
Splurt-shhh!!
Nuna always made those sounds and lost her mind whenever I thrust my cock in. It seemed to be a common trait among succubi—they loved it most when I pressed my cock right against their womb and ejaculated. Of course, my only experience with succubus cunts was with my mother and Mina-nuna, but that assumption had been 100% correct so far.
“Haa, haa.”
While Nuna swam through the long waves of pleasure, I exchanged tongues with Anna, who was standing nearby.
“Anna, come here.”
“Slurp, chomp… lick-lick…♥!!”
Thanks to my saliva thief, my mouth was running dry, but Anna’s tongue was so sweet that I kept producing more. Nuna must have thought she could rest once I ejaculated, but that was a huge miscalculation. If she made me into this kind of body, she had to take responsibility.
Thwack-thwack-thwack-thwack-thwack-thwack!
The cock-stabbing began before Mina-nuna even had a chance to absorb the semen. My merciless glans attacked her vaginal pressure points in rapid succession.
“Stooop…!! My womb is going to break… ogo-gok…♥, ho-ok…♥! My cunt is going to be ruined.”
“Anna? Do succubus cunts break that easily?”
“…I apologize to the Young Lady, but absolutely not. Though, once you’ve tasted the Young Master’s cock, your body won’t be able to be satisfied by any other man’s.”
Since ruining such a precious cunt would be a catastrophe, I asked Anna. The answer was a firm denial.
"Who told you to lie!"
Squish-squish-squish-squish-squish♥
"Ohooooooh… Anna, I hate you…♥!"
Slurp-squish-slurp-squish-slurp-squish
"Get addicted to my cock!"
“Oooooh…♥! I’m already addicted… ho-ok…♥ to my brother’s cock…!!”
“Geez, look at you, begging for cum and whining so deliciously! Anna! Why is Nuna acting like this?”
I’d heard that Anna had acted as a nanny when my sisters were young. Surely she knew a thing or two about women? I asked, and Anna replied.
“In my opinion… it sounds like she’s saying she likes it and wants more.”
“…N-no. Anna, what… h-h-hic…!!!”
Slurp-slurp-slurp-slurp-slurp
“Hoo-ok…♥!! Nooo, my cunt feels so good… my head, ugh-gok…♥ is turning into mush.”
“Cum for my brother’s cock! Take that!”
“I’m cumming, I’m already cumming…♥!! I’ve been cumming for a long time now!”
Whoosh!
“Hek, what!”
I lifted Nuna, who had been offering her cunt in a prone position. I spun her around once in that state. Mina-nuna’s flexible legs spread wide, facing me. Because of that, my cock stirred her cunt while still kissing her cervix.
Splurt-shhh!
“Hoo-ok… it feels good, I love the cock-shaking…♥!!”
Now, the word “good” came out of Mina-nuna’s mouth before the word “no.” I stopped thrusting and waited for a moment.
“Hee…♥ I love your cock. Stab Nuna’s bitch cunt some more.”
She had finally reached the level of begging for the cock. She tried rotating her hips on her own, but naturally, the pleasure was less than when I thrust with force.
“When you’re having sex with me, you’re not Nuna, you’re a cunt slave, right?”
“…”
“What was that?”
“Please… give your cock to your Jihan-exclusive succubus slave bitch cunt.”
Nuna blushed until her bronze skin turned deep red. There was still hesitation and shame in her eyes, but it was only the first day. How could one be full after the first bite?
‘I’ll be satisfied with this much for today.’
Since I’d unexpectedly discovered Nuna’s hidden tastes, it would be important to manage the seeds I’d sown so they could grow well in the future. Even as she admitted to being a cunt slave, her pussy was trembling and soaked in love juice. Feeling the thick pheromones of a female with my entire cock, I supported her legs with my arms. As her feet left the ground, she hurriedly wrapped her arms around my neck and locked eyes with me. I kissed her, filled with a sense of pride.
“…♥♥…”
There were clear hearts floating in those eyes.