Corrupting the Back Entrance
The wet sounds of fingering filled the air—squelch, slurp, squish. “Ah, no… my asshole’s breaking…!” “Haa…♥ I’m trying so hard not to break it right now…♥”
The foreign sensation Sia felt inside her anus wasn’t from the cock itself. It was Lua’s fingers, thrusting into her older brother’s rear. Gentle from Lua’s perspective, brutal from Sia’s. The fact that the deranged Grand Duke hadn’t immediately slammed her cock inside was a display of truly tremendous self-control. She didn’t want to break her older brother. She wanted to thoroughly, completely break her older brother.
“I learned it properly from the court physician. The back hole doesn’t produce any love juices like the front, so they said you have to apply plenty of lubricant.”
Squelch. Squish. Slurp.
“Huk… ngh…♡”
Lua was busy coating the inside of Sia’s anus with thick layers of lube smeared over her fingers. Every time a finger slid along the sensitive wrinkles, the ticklish friction forced a moan from Sia’s throat that she couldn’t suppress. Once Lua decided the entrance was soft enough, she slowly withdrew her finger.
Schlick—
“Haaung…♡!”
“Older brother… your anus is incredibly sensitive too…♥”
Lua adored the way her older brother’s face twisted in apparent agony. It made her feel as though she could manipulate his every sensation at will, like a craftsman handling a tool.
“Huu… I’ve applied more than enough to you, older brother…♥”
The Grand Duke gripped her massive cock. It drooled thick strands of precum like a starving beast slobbering saliva. The volume already far exceeded anything a normal man could produce, yet it still wasn’t enough for what was coming. The sheer size of the thing made it anything but ordinary.
Lua tilted the mouth of the lubricant bottle over her cock. Thick, viscous fluid glugged out in heavy ropes, coating the towering shaft.
“Eut… haaak…♥”
Icy-cold liquid oozed down the steaming, monstrous length. Though it seemed to cool the overheated flesh, the Grand Duke’s mind—overloaded with raw lust—found no relief at all.
Squish, squish, squish, squish.
“Older brother. Heut♥ I’m going to put it in now, so get on your stomach.”
While stroking herself and spreading the lube along her length, Lua began warming up her raging cock.
“Hiiik…!”
Sia recoiled in horror. No matter how she looked at it, that monstrous thing was already on the verge of exploding with fury. Veins bulged along its surface as though it wanted to destroy everything in its path. She genuinely feared her body might shatter before such rage.
“Why aren’t you face-down yet?”
“Hik! S-sorry! I-I’ll move…!”
The moment those sharp crimson eyes locked onto her, Sia frantically tried to roll over. Even though Lua had told her to resist, the thought of defying her when she looked that serious terrified Sia. But her body was already sluggish, and with both hands bound, she couldn’t even manage such a simple movement.
Finding her older brother’s struggling adorable and pitiful, Lua decided to offer a little help.
“Here, like this♥”
“Hwaang♡?!”
Her anus had been continuously teased, leaving Sia’s body hypersensitive. When Lua’s fingers dug into that slender waist, all strength fled Sia’s limbs at once. Treating her like a doll, Lua easily flipped her older brother over.
Sia ended up face-down on the bed, legs folded beneath her so only her ass remained raised.
“Wow…♥”
Two plump, glistening mounds of flesh, as full and bouncy as ripe peaches heavy with juice. Lost in a trance, Lua grabbed the fatty cheeks with both hands, squeezing hard.
Her grip was so powerful that Sia frowned from the sharp, electric sting.
“Haauk…! I-it hurts…!”
“It doesn’t hurt. It feels good, you bitch.”
“N-no—”
Slap!
“Kyaaak?!”
Lua’s palm crashed down, flattening Sia’s ass cheek. The bright pink handprint burned on snow-white skin, sending tingling pain radiating through her pelvis.
“Insane…♥ How can it cling so lewdly like this?”
“Huk… the pain… I don’t… like it…?”
For some reason Sia couldn’t finish the sentence. Because it wasn’t true. The shiver racing through her pelvis wasn’t trying to dull the pain. It was craving more of this painful ecstasy. Like the body of a masochistic bitch who lived for agony.
Neither Sia nor Lua noticed the golden hearts blooming in their eyes.
“N-no! My body—it’s acting strange—”
Slap!
“Haaung♡?!”
Unable to forget the delicious sting, Lua painted the other cheek the same vivid red. Between Sia’s trembling ass cheeks, her shy little rear hole twitched and fluttered. The way lube kept leaking out in tiny spurts made it look no different from a pussy drooling arousal.
Thud.
“Huk…♡?!”
Just the contact alone brought overwhelming heat and weight. Lua’s urethral opening was gently kissing her older brother’s back entrance.
“Older brother.”
“Y-yes?”
“I’m putting it in♥”
“W-wait, no matter how I think about it, t-this—”
Sluuuuurp—
“Hiyaak?!”
Sia finally felt that colossal thing forcing its way between her cheeks. She hadn’t wanted to feel again the agony of something being shoved into a hole meant only for expulsion…
…It doesn’t hurt?
“Hu… ut…?”
“How is it? Older brother…♥ It doesn’t hurt at all, does it? I learned this from the court physician too.”
This time the Grand Duke’s cock didn’t thrust in mercilessly like before. It advanced with excruciating slowness, naturally, almost gently, sliding inward. Instead of forcibly prying the anus open, it seemed to be drawn inside along with the surrounding flesh.
Sluuuuuurp—
“Uut, aaang…♡”
Every time the glans brushed past a certain spot, her lower belly fluttered with strange heat. Sia fought desperately to hold back the moans threatening to spill out.
The anus was clearly not a hole meant for this. There was no way she should feel pleasure from having her ass violated. It was as if her body was proving that every hole existed only to serve males.
Sia didn’t want to become a female who took joy in such sensations.
Sluuuuuurp—
“Uk, kuh, hauk…♥”
This gentle, considerate insertion wasn’t what Lua truly preferred. Ignoring her older brother’s screams and brutally ravaging her, trampling and defiling the female—that was far more satisfying to her. Yet the pleasure she felt from her cock was incomparably more ecstatic when she took it this slowly.
The entrance squeezed the glans with tremendous force as it passed, as if welcoming it, while the interior wriggled and guided the thick shaft ever deeper.
Thump!
“Haaung…♡!”
“Ahuk♥?!”
The sudden full insertion all the way to the root made both their eyes shake at the same time. It happened when roughly seventy percent of the cock was inside—Lua had misjudged her strength.
“Haak… haak…♡”
Sweat dripping down her face, Sia panted harshly. She couldn’t say the situation was good, but she could clearly feel how much her younger sister was still trying to be considerate even while lost in madness. Compared to last time, when Lua had fucked her as if trying to destroy her asshole.
The sensation of that oversized thing crushing her insides was certainly strenuous, but there was no pain.
‘At this rate… tonight might not be too bad…’
THWACK! Plap! Plap! Plap! Plapplapplapplap!
“Ohoooooh♡?!”
“Aang♥! Fuck! This back hole! Feels so fucking good! Fuuuuck!”
As if mocking Sia for daring to relax even for a second, Lua’s merciless anal assault began in earnest. Drooling like a beast devouring its prey, she slammed her hips forward at ferocious speed.
Lua’s patience had finally snapped. There was no room left to slowly savor the ecstasy radiating from her cock. She wanted to cum immediately, even if it was just one load. For someone like her who would never be satisfied with a single shot anyway, going slow was simply inefficient. Even if she fucked all night, it still wouldn’t be enough.
“Aah♥ Older brother, older brother…! Take every last bit of my strength♥!”
Plapplapplapplap! Thwack! Thwaaack!
“Haaung♡?! Aang♡?!”
Each brutal thrust into her anus sent a shock through Sia that threatened to blow her consciousness away. The hearts floating in her eyes flickered dangerously.
Splat! Splat! Splat! Splat!
Both bodies were drenched in sweat from the scorching heat. Lua’s flesh slammed into Sia’s ass with enough force to leave bruises. Each impact sent ripples through the soft flesh, making it jiggle and dance obscenely.
Plapplap! Plap! Thwack! Plapplapplap!
“Haa♥ Feels good, doesn’t it?! You love it too, you fucking bitch!”
Her brain felt like it was boiling from the heat flooding her body. Lua spat venomous words to vent some of the pressure. She no longer felt any guilt about it.
“Haaung♡?! N-no! It doesn’t feel good! Haaang♡!”
Unlike last time when she had forced her way into a dry, tight hole, the generous amount of lube made every movement of the massive cock feel vividly alive inside her. Given the sheer scale of Lua’s penis, the flared ridge of her glans was equally huge. As that ridge scraped back and forth along her inner walls, Sia felt her mind beginning to fracture.
“Moaning like a cock-sucking whore the whole time—what do you mean it doesn’t feel good, you bitch!”
Slaaaaap!
“Oooh♡?!”
A perfect palm-shaped dent formed on Sia’s ass. The crumpled flesh slowly bounced back into shape, but the angry red mark refused to fade. The burning sting made her pelvis twitch, and in that brief moment when her posture shifted—
THWAAAAACK!
“Oooh♡?! Ohoooock…♡?!”
The moment a certain spot was stabbed directly by the glans, Sia’s tongue lolled out, her eyes rolled halfway back, and she let out a shameless cry. That had clearly been pleasure. Undeniable, unmistakable pleasure.
“Haa? What the hell was that reaction?”
“Ah, auuk…♡”
When Sia showed far more delight than expected, Lua’s crimson eyes filled instead with displeasure. At this rate, the female who was supposed to serve the male’s pleasure was the one being pleasured instead. How insolent. How utterly disrespectful of her place.
“You vulgar little bitch…! So that’s your weak spot, is it?!”
Sluuuuurp!
“Haaauuuang♡?!”
Lua immediately targeted the exact same spot and attacked again. Instead of wild thrusting, she carefully pressed the head of her cock against it and pushed with deliberate, loving pressure. ♥
“S-stop, stop it…♡!”
Pleasure beyond her limits hammered at Sia’s brain, reshaping it. She threw her head back, openly displaying her ecstasy.
“This arrogant ass! Today I’m going to completely wreck it!”
Slaaaaaap!
“Aang♡?!”
Another heavy slap from the Grand Duke landed on her ass. Sia writhed, pelvis shaking, caught between pain and pleasure. Her rear hole continued to be toyed with mercilessly from both inside and out, and the sexual relief doll’s ass kept being corrupted, again and again.