The Demon's Seed and the Shameful Hand
“Ngh-ahhh♥ Hu-heh-hng-ahhh♥”
It was as if we had made a silent pact that I would let out these lewd, shameful cries every time my sister’s phallus pushed deep inside me.
Every time the tip of that thick rod hammered against my cervix, an uncontrollable moan tore from my throat.
“Haa… hng! You really are a top-tier cunt. Tightening up just to fit my size like this.”
“Hyaaaat♥ N-no, it’s not like that-ahhh♥”
“Not like that? How long are you going to keep denying it, Runi? You’re my exclusive cunt, and that’s a fact!”
—Thwack! Thwack-thwack!
“Nng-ghhh-iiiit♥”
My vagina had stretched to accommodate her, and now, with her thrusting as if she meant to burrow right into my womb, an indescribable, overwhelming stimulation flooded my senses.
“You’re the one who shook your slutty ass and begged me to fuck you.”
—Slap!
“Hng-yaaaang♥”
As her hand struck my buttock with a sharp sting, a fresh wave of lubricant sprayed out instantly.
It was my first time feeling this sensation, and I had already stained the sheets with my filthy fluids.
—Slap! Slap-slap!
“Nng-ghhh-uuut♥ A-ah, it hurts… p-please, stop hitting meee♡”
“If it hurts so much, why do you tighten your pussy around me every time I strike?”
—Clench!
“Hng-yaaaat♥”
My stinging buttock was squeezed firmly in her grip. It definitely hurt. The pain was enough to bring tears to my eyes, yet my pussy was spraying fluid without a moment’s rest, as if begging for more.
Doesn't this just mean I’m a pervert who loves being treated like an animal while getting hit?
“P-plea-ahhh♥”
Just as I shook my head, feeling like I couldn't take any more, she shoved her arms into my armpits. She pinned my shoulders down and forced me to lift my upper body.
—Thrust!
“Hng-ghiii-iii-iiik♥”
Her phallus stopped moving back and forth and began to move up and down. It wasn't a game; the impact felt as if it had reached my very solar plexus, and my eyes rolled back in my head.
“How’s that? It goes in deeper, doesn't it?”
“I-I can’t… breathe… hng-ghhh♡ Ho-goooo-ok♥”
“Haa… hng… I’m going to fill you with my first batch of seed, Runi.”
She pulled out until only the tip remained, then plunged it back in. I thought I might have a moment to catch my breath, but—
—Thrust!
“Hng-ghiii-iiik♥”
It was her scheme to make me feel the pleasure of the sudden, deep penetration.
—Thrust! Thrust-thrust! Thruuuust!
“Hng-gooo-ot♥ Hu-gyaaaak♥ I-I’m dying… my womb is being pierced… I’m gonna dieee♡”
“Runi, make sure you catch all the seed I’m giving you. Ngh!”
—Splurt!
After repeating the act of pulling out to the tip and driving it back to the root, she ejaculated in one massive burst, and my womb suddenly grew warm. The sheer volume made it feel as if my uterus were stretching to its limit. I lifted my chin, trembling violently, before burying my face into the bed.
“Hng-ghhh♡”
“Haa… you’re such a natural female. Look at you, leaking my seed everywhere.”
“Ngh-ghhh…”
“It’s not over yet, Runi. I’m going to cum four more times.”
“N-no… if you do it right away… Hng-ghiii-iiit♥”
She didn't care about my state at all and began to thrust her phallus into me once again.
“Runi, I’m cumming! Nghhh…!”
“Hu-hyaaaaang♥”
How many times had I taken her seed into my womb? When I had first climbed onto the bed, it was morning, but now, the sunset was already painting the room.
Twice? Three times?
I didn't know. At some point, I had completely forgotten to count and was just being fucked in a trance, like a frog pinned to a stake.
“Ngh… haa…”
With a satisfied moan, her phallus finally withdrew. I didn't know what my pussy looked like right now, but I was certain it was gaping open, twitching to the size of her phallus. It was likely still leaking a massive amount of thick, creamy semen.
“Shall we stop here for today?”
“If you… do any more… my womb… will collapseee♡”
“I haven't fully replenished the magic in your Soul Mark yet.”
She stroked my buttock slowly before moving to my side to pull me into an embrace. My head was still spinning, and my vision was so blurry that I couldn't see her face clearly.
—Smooch!
Then, a sensation sharpened my focus. Her lips had lightly brushed against mine before pulling away.
“Runi, you’re so lewd.”
“Hng-ghhh♡”
“I’ve waited so long for this moment.”
“Y-you waited…?”
“Yes, for the moment I could fuck you like a beast and lie here with you.”
Her heavy breasts pressed against mine. My own chest had been crushed for a long time, but hers, being so much larger, just kept pressing down on me.
“Slurp…”
Her lips touched mine once more. This time, it wasn't a light brush; her tongue pushed into my mouth.
“Slurp… sluuuuurp♡”
It was so sticky, so erotic. She explored my tongue and began to lick every corner of my mouth. I didn't even have the strength to reciprocate, so I just lay there, letting it happen.
“Slurp… I love you, Runi.”
“…What?!”
At those words, which I could never take lightly, my vision cleared completely, and my sanity returned. Love? Suddenly, here?
What kind of context was this?
“Y-you love… me?”
“Yes, I love you sincerely.”
Is this how demons love? By fucking the person they love like a dog?
“Sister… did you want to… do this even when I was seven?”
“Slurrrp♡”
She didn't answer. She just leaned in close and licked my cheek with a sticky, wet tongue.
“…That’s not true, right?”
“Who knows?”
That smile seemed to confirm it, but I desperately prayed that it wasn't true.
“A-anyway… can I start working where you work, starting tomorrow?”
I needed to change the subject, and the new topic was my future. I had moved out under the guise of 'mental growth,' and I had decided not to take any more support from my parents. I had some savings, but that would only last me two years at most.
“Are you talking about the library?”
“Yes.”
“I quit.”
“You quit? Then what are you going to do now?”
“Nothing. Being a librarian was just one of the roles I played to appear human to you, Runi.”
I had hoped to get into the library where she worked and earn some money, even if just for a little while. But if she had quit, I had no choice but to find work myself.
“Haa… I’ll have to look for a job tomorrow.”
“You don't have to.”
“I can only survive for two years with the money I have now.”
“I have plenty of money.”
“Sister, you’re rich?”
“Yes. It’s been over a hundred years since I started living in the human world.”
A hundred years. It was such an incredibly long time that I couldn't even grasp it. If she had been living as a human the whole time, just as she had with me…
“You must… have a lot of money.”
“So, you don't need to work, Runi.”
“But we’re living together, so I want to earn money too. It feels wrong to just receive everything without doing anything.”
“Doing nothing? Runi, you’re fulfilling your role perfectly.”
Just as a question began to rise, her phallus, which had risen again, pressed against my lower abdomen where the Soul Mark was engraved.
“Hng-ghhh♡”
“Being my exclusive cunt is the role you need to fulfill.”
“Ngh…”
“Runi, during all the sex we had here, the Absolute Command of the Soul Mark was never used once.”
Does that mean I was moaning and getting fucked like that of my own free will?
“You’re finally starting to realize that you’re my exclusive cunt.”
“W-what are you saying! A-and today… no more.”
“I feel like my erection will go down if I cum just one more time.”
“I-I’m exhausted! My… my pussy is throbbing…”
“What should I do? It hurts to leave it like this.”
She rubbed her throbbing phallus with her hand as if asking me to look at it, then made a pitiful expression. It was as if she were pleading for me to pay attention to her poor, suffering phallus.
“D-do it yourself! You know, masturbate or something.”
“You tightened your pussy around me so much, and now you tell me to masturbate? That’s so cruel.”
“How is that cruel!”
“Once you’ve felt the tightness of a top-tier pussy, nothing else feels the same, no matter how much I shake it with my hand.”
As if to prove it, she began to grip and shake her phallus right in front of me. Her erect phallus was so unnatural that I found myself watching the bizarre spectacle of her shaking it with both hands.
“Look. Not even any pre-cum.”
“You’re right…”
“So, you do it for me.”
“Me?”
“Yes. I won't fuck you. Instead, you use both your hands to jerk me off.”
“Ngh…”
To grab that monstrous thing with both hands and shake it… just imagining it made me feel disgusted. But…
“Gulp…”
My body began to react as if it were anticipating something.
—Swish-swish!
Before I knew it, I was gripping her phallus with both hands and shaking it.
“I-is this how you do it?”
“Do it a bit harder. All the way to the root.”
I moved my hands from the center of the shaft down to the root and back up to the glans, just as she wanted.
—Swoosh! Swoosh!
“Hng-ghhh…♡”
She let out a soft moan at my active hand movements.
“Haa… hng-ghhh♡”
Every time my hands moved from the root back up to the glans, pre-cum oozed out as if it were being squeezed.
The erotic scent was impossible to ignore, and I couldn't help but let out a moan of my own.
“I-it’s hot…”
“Yes, it’s hot. Because you’re the one jerking me off.”
“It’s… twitching so much…”
It was my first time seeing her phallus in such detail while it was being stimulated. And the same went for her face. To think she had treated my pussy like an object, only to twitch and moan at the slightest touch from my hand.
Why? Why couldn't I take my eyes off her face?
“Slurp…♡”
I didn't know anymore. I wanted to feel those lips, which were letting out such rough breaths and moans, against my own.
I moved my lips against hers and shook her phallus even faster.
“Ngh-mmph…♡”
Soon, her expression crumpled. With a more intense moan—
—Splurt!
Her seed erupted, painting my body white.
“Slurp… Sister, did you cum?”
“Y-yes. I did… because your hands felt so good…”
The seed she had ejaculated covered my lower abdomen and even my chest. To think she could still produce this much after filling my womb so many times.
“Sniff…”
When I tried to breathe, a fishy, erotic scent that was enough to paralyze my nose hit me.
“Slurp…”
“Runi, you’re getting good at eating my seed, too.”
At that, my dazed mind snapped back to reality. I had been tasting the seed on my fingers, putting them into my mouth.
“Aaaah… Aaaaaaaah!!!!”
In a panic, covered head to toe in her seed, I fell right off the bed.