Just a moment away from me, and she’s already in heat
The back of my throat felt sticky, and I took in such a massive amount of semen that I felt endlessly hot.
Even so, I wanted more.
Far from calming down, my pussy was itching so badly I felt like I was going mad, and I immediately spread my labia along with my legs.
“Big sis… stick your cock in me… you can tear my pussy apart… you can crush my little room… just ram it in roughly…”
I believed that if it were my sister, she’d pounce on me like a beast and fill my pussy to the brim with that monstrous cock.
But my sister just stared down at me blankly for a moment.
“Runi, has someone given you something strange to eat or something?”
“I don’t know… my pussy… it’s sooo… itchy…♡”
The reason was simple.
Because right now, my body craves my sister’s cock.
“Looks like you’ve gone into heat just because I stepped away for a moment.”
“Mmm…♡ So… please stop me from going into heat…”
“How am I supposed to resist this?”
She knelt on the floor and gradually moved closer.
-Thud!
The head of her cock pressed against the entrance to my pussy and began to slide in slowly.
“Ahhh…♡ Your cock… it’s coming in…♡”
If only this cock would enter, it would surely satisfy this lust, which felt like a parching thirst.
“Squeeze your pussy tight. If you don’t, I’ll give you a telling-off.”
“Yeees…♡”
-Thud! Plop!
“Huh-huh-huh-huh♥”
In one swift motion, my sister’s cock slid deep into my pussy.
With a single thrust, her cock was buried all the way inside me, and the sound of flesh slapping together echoed loudly.
-Bang! Bang bang bang!
“Mmmph♥ Huuuuh♥”
“Do you like it? I’m fucking you like this with the cock you wanted so badly?”
“You… I love it sooo much…♡ I love it sooo much… I’m going to go mad♡”
It was my sister’s cock, the very sight of which used to make my skin crawl. Yet now, it felt more welcome than ever before, delivering an extreme sense of ecstasy.
Even though it wasn’t the light from my pussy that was influencing me, I was actively craving my sister’s cock.
-Bang!
“Huuuuh♥”
Our flesh met once more, and a resounding sound echoed through the air.
At that moment, the tip of my sister’s glans slammed hard against the entrance to my womb.
My eyes rolled back as I felt my womb being crushed.
I wanted her to thrust even more savagely, until I was foaming at the mouth.
“Haa… Hmm…♡ You’re especially tight today, aren’t you?”
“Sis’s cock♡ I wanted your cock sooo bad♡”
“If you do this, where on earth would I go, leaving our Runi behind?”
“Don’t go… keep… keep staying by my side… and shove it deep inside me♡”
-Thud!
My lower abdomen swelled considerably as my sister’s cock moved violently.
With my sister’s hand pressing down on my lower belly on top of that, I threw my head back and writhed wildly from side to side.
“Ooooh♥ I love it… my lower belly… I love it when you press down on my lower belly♡”
“You lewd cunt!”
-Bang!
“Huuuuh♥”
“When I pull my cock out, you’ll spread your legs on your own. Got it?!”
“Yeees♡ I’ll spread them on my own… I’ll spread them… so please fuck this lewd cunt like a dog, ooh♡”
With a broad smile, the older woman, who had been continuing to thrust her cock into me, covered my lips with a kiss.
Unlike the wildly moving cock, her tongue was incredibly gentle.
“Slurp… slurp…”
“Huuuup♡ Beee… slurrrrp!”
Just as I’d sucked her cock as if I were going to pull it right out, her tongue was no different.
I bit down on her tongue with my lips to make it stick out as far as possible.
The tip of her tongue that slipped into my mouth teased mine to the full.
Just as I wrapped my arms around her neck to devour her tongue even more deeply...
-Puuuuuuh!
“Huuuuuugh♥”
My sister sat bolt upright.
Her hands weren’t resting on any part of me.
There were only my two arms wrapped around her neck and my cock, thrusting deep inside her as if it would pierce right through her pussy.
“Hyaaaah♡ Chuuur…♡ Chuup…♡”
-Paaaaang!
“Huuuuh♥”
When my sister thrust her hips hard, my body felt as though it was floating for a moment.
At that moment, the cock slipped out of my pussy a little.
Before long, my body came crashing back down, and the cock that had slipped out plunged back in right to the hilt.
“Mmm…♡ Hold on tight so you don’t fall off.”
“Mmm…♡ T-this… it feels so good…♡”
-Bang! Bang bang bang!
“Whaaaah♥”
My sister continued to thrust her hips, and my body kept rising and falling.
A safety mechanism that allowed it to go as deep as it would.
In other words, because her hands weren’t touching anything, it thrust in roughly, crushing my womb.
“Haa… Huuugh♥ Your cunt’s so lewd I can’t hold back…!”
“Don’t hold back… It’s time to fill Runi’s little room to the brim… I’ll cum loads inside youuuu♡”
“Now you’re finally acting like a proper cunt…♡ Ugh… Runi, I’m cumming!”
-Burrrrr!
With the cock still inside her, a massive amount of semen filled her womb to the brim.
As her lower abdomen slowly swelled and grew warm, this sensation was a pleasure so intense that, no matter how many times she experienced it, it made her eyes roll back and left her on the verge of fainting.
“Huuuuh♥ I’m cummingggg♥ Ugh…♡”
Just as I was savouring the afterglow, my body trembling uncontrollably with no respite, my sister grabbed my waist with both hands and hoisted me up.
Then she threw me roughly onto the bed.
Having experienced such intense pleasure that I didn’t even have the strength to lift a finger, I flew through the air like a sack of potatoes and landed on the bed.
“You look absolutely arousing, leaking cum with your arse in the air.”
“Huuuuh♥ Please… do it again…♡”
Instinctively, my hands moved to spread my buttocks wide open.
At the same time, I wiggled my bum from side to side.
“I fucking love you, Runi.”
“Me too… I love you too, sis♡”
“I'll fuck you as hard as I love you.”
-Plop!
“Huuuuhhh♥”
Even though my womb was filled with my sister’s cum, my lust showed no sign of abating.
As my sister’s cock entered me from behind, I felt the stimulation of the glans striking the upper wall of my vagina.
As it violently stimulated my weak spot, my tongue shot out of its own accord.
“Do you like it?”
“Mmm♡ I love it…! I love it so much♡”
“How does our lovely Runi like to be fucked the most?”
It was incredibly difficult to choose, as everything provided such perfectly unmatched stimulation.
Just as my sister’s cock withdrew slightly before plunging back in deep, I clenched my pussy tightly.
“Ugh…”
Then she quickly pulled her arse back.
-Thwack!
“Look at you, you naughty girl? Now you’re moving your arse all by yourself?”
That was my answer.
“Big sis…♡ Just pounding me like a dog…♡ That’s all I want♡”
“That’s why I love you. How could I not love such a lewd cunt!”
“Huuuaaang♥”
After that, I was pounded time and time again.
Only after being pounded until my womb couldn’t take it any more and the semen burst out did my sanity return.
“AAAAAAARGH!!!!”
Realising everything, I let out a bloodcurdling scream that filled the room.
To think I’d created a situation I simply couldn’t comprehend—one that only raised more questions the more I tried to make sense of it.
If my sister had been there, she’d have thought I’d gone into heat because of the devil’s pact, but this time, I’d gone into heat all on my own and ended up pouncing on her.
-Gulp!
“Ugh…♡”
As I thrashed about violently, thick semen kept flowing out of my pussy.
“Oh my, you’re so horny.”
“I’m mad. I’m going maddddd!”
“What’s the matter, Runi? Just accept it.”
“What do you mean, accept it?!”
“I suppose you’ve decided that your true nature is to become my personal cock-hole now, Runi.”
“As if I would!”
What on earth was the reason for this?
She had clearly realised that touching her labia had a tremendous effect on enhancing the quality of her magic, and that was all she had done—just lightly touching them.
Then, suddenly, her body heated up and she started masturbating.
She even devoured it with such ferocity that it looked as though she was going to rip my cock right out of my body.
“Since Runi’s been sucking my cock properly from top to bottom, it won’t get hard again.”
Saying that, she shook the limp cock back and forth.
The sight was so repulsive that I slapped it away with my hand.
“Ouch…! Runi, it hurts when you hit my cock like that.”
“Stop shaking it! It’s disgusting!”
“What’s disgusting about it? Just a moment ago, that’s exactly what you wanted, Runi.”
The fact that I couldn’t deny those words plunged me into an abyss of despair.
“Ugh… Let’s just die. Let’s just die!”
“I popped out to run an errand and came back to find quite a spectacle.”
“But… where have you been?”
The fact that my sister had left without telling me anything was so baffling that I stopped screaming and asked her a question.
“I went to do what a demon must do.”
“What a demon must do…?”
“Yeah, are you curious?”
It would be a lie to say I wasn’t curious.
So I shook my head vigorously.
“Hmm, I’m not sure. I wonder if I can take Runi with me.”
“Where did you go?”
When I asked for more details, my sister just gave a sly smile.
Seeing him like that only makes me even more curious.
“Don’t just keep me in suspense—tell me for sure.”
Suddenly, he lifted me up and sat me on his lap. Then he pressed his lips lightly against my forehead.
-Peck!
“Make a promise to me.”
“Hmm?”
“That you’ll never leave my side.”
“Okay, I promise.”
“We’re holding hands now, aren’t we?”
“Yes, we are.”
“Don’t ever let go of this hand.”
What on earth is this place that she’s emphasising so strongly that we mustn’t let go?
“Let’s get dressed and head out.”
I got out of bed to get dressed, but my sister started dressing me, piece by piece, starting with my knickers.
“When Runi was really little, we used to do this, didn’t we?”
“Ugh… could you please forget about that?”
“Oh my, the semen keeps flowing out.”
-Squeeek!
“Oh, so arousing♥”
I shuddered at the touch of her hand, which spread my labia wide and traced the entrance to my pussy.
“Sis!”
“Keep your pussy tight so it doesn’t drip out.”
“Ugh…”
After my sister had dressed me completely with her own hands, we clasped hands once more.
She then gave my fingers a light flick.
At that, a black gateway, as if alive, materialised.
“Runi, I told you, didn’t I? Never let go of this hand.”
“Yeah, I know.”
My sister’s face, which had been smiling all along, froze in an instant.
Watching her like that, my doubts deepened, and I followed her, stepping inside the black gateway.