Rui-lin is Big Brother's Perverted Little Sister♥ (2)
"Hnnngh?!♥ Hngh♥♥" "Big Brotherrr♥♥ I'm cumming♥♥"
The plump, pink pussy lips of the two eager females were being toyed with by Si-yoon. Their hips, still locked tightly around him, trembled violently as they reached climax together.
But Si-yoon wasn't satisfied with merely rubbing his cock between their pressed-together folds.
"Since Rui-lin's on top… I'll start with her."
He gripped both girls' hips and asses firmly with both hands, kneading and squeezing the soft, springy flesh.
The cracks of the two females, who had just been squirting moments ago, quivered, and thick, sticky love juices began to drip from between them.
—Schllrrrp…♥
When Si-yoon spread Rui-lin's soaked pussy lips with his fingers, the flushed inner folds of her vagina twitched, glistening with fluids and sweat.
"Haaang…♥ It's embarrassing…♥ Big Brother♥"
As if exposing her bare face without makeup, Rui-lin panted heavily while blushing even deeper in shame.
But her embarrassed expression soon changed.
—Schllluuurrrp…♥♥ Schllluuurrrkk—!!!♥♥♥
"Hnnngh?!♥♥♥ Your cock's going in♥♥♥"
Si-yoon's cock forced its way into that gap and slammed in heavily, making her collapse instantly.
"Master's cock…♥ I can feel it going into Big Sister's belly…♥"
Ji-woo, who had been lying beneath Rui-lin, shifted slightly to the side and reached out to touch Rui-lin's stomach, feeling the bulge of Si-yoon's cock pressing up from inside.
—Schllrrk…♥ Schllrrk…♥ Schllk…♥
"Hnnngh?!♥♥ Haaah♥♥"
The slow, deliberate thrusts of his glans scraped lazily against her vaginal walls, gradually stretching and contracting the tight passage.
"Big Brother…♥♥ Your cock…♥ Eheh…♥♥"
Just yesterday, when Rui-lin had first arrived at the hideout and been taken by Si-yoon, even simple penetration had been unbearably painful for her.
But the evolved Slave Brand had transformed her body into one optimized for service. Now she could handle even these leisurely pistoning motions while panting and still maintain some composure.
—Schllrrk…♥ Schllrrk♥ Schllrrk…♥
"Haa…♥ Hoo…♥ Big Brother's cock is scraping me so deep…♥ It feels so good♥"
'She's gotten much more flexible than yesterday. I can probably speed up a bit.'
Sensing the progress in Rui-lin's physical adaptation, Si-yoon quickly decided to increase both the speed and force of his thrusts while gripping her ass tightly.
—Schllrrk♥ Schllrrk♥ Schllrrk♥
Because of her petite frame she still couldn't take him all the way, but once roughly seventy percent of his length was buried, his glans began kissing her cervix.
—Press♥ Press♥ Press♥ Press♥
Noticing this, Si-yoon kept himself buried deep and gave short, bouncy thrusts, rapidly tapping her cervix with light, playful strikes.
"Hnnngh♥♥ Big Brother♥♥ My baby room♥♥"
She let out an even lewder moan at this new sensation, different from the scraping pleasure along her walls, and exhaled hot, ragged breaths into the air.

—Thwack!♥ Thwack!♥ Thwack!♥ Thwack!♥ Thwack!♥ Thwack!♥
After repeatedly tapping her cervix in short, rapid bursts, he changed rhythm and began pulling out almost completely before slamming back in with powerful strokes.
"Hnnk♥ Hnnk♥ Haa♥ Ahaah♥ Cumming♥♥"
The wet, sticky sounds grew violently louder, filling the room. Even the bed began to shake, making Rui-lin's hair and breasts bounce wildly.
—Schllluuurrrp—!!!♥♥
After being battered dozens of times, her cervix finally surrendered and opened. His glans pushed through the narrow gap and began pounding directly inside.
"Hnnngh?!♥♥♥ Aaaah♥♥♥"
The pleasure of having the deepest sanctuary of a woman violated was nothing short of the ultimate ecstasy a female could experience.
—Thwack!♥ Thwack!♥ Thwack!♥ Thwack!♥ Thwack!♥ Thwack!♥ Thwack!♥ Thwack!♥
Si-yoon accelerated further, relentlessly striking the innermost depths that were every female's greatest weakness.
"Eheh♥ Aheeeh♥♥♥ Hngeh♥♥♥"
Within seconds of her womb being targeted, Rui-lin was already addicted to the sensation. Her tongue lolled out as she let out countless vulgar, beast-like moans.
—Thwack…♥♥♥ "Hnnngh…?!♥♥"
Then, in an instant, his cock thrust upward and pressed hard against the deepest part of her womb.
—Bllluuurrrrrt—!!!!!!!!!♥♥♥♥♥ "Haaaaaaah♥♥♥♥♥♥♥"
A violent, waterfall-like torrent of semen flooded her womb.
—Bllluuurrrt—!!!♥♥♥ Bllluuurrrt—!!!♥♥♥
—Gulp♥ Gulp♥ Gulp♥ Gulp♥ Gulp♥ Gulp♥
"Cumming♥♥♥ Cumming♥♥♥ It's so hoooot♥♥♥"
Thick, lava-hot semen churned inside her womb and vagina, slowly swelling Rui-lin's belly until it looked ready to burst.
—Pop♥
"Hnn…♥ My belly…♥ It's going to burst…♥"
Once he finished pumping Rui-lin full, his cock slipped out of her thoroughly used pussy. White fluid immediately began leaking from her swollen entrance.
"Next."
"Aah…♥ Yes♥"
While Rui-lin lay half-conscious with her belly bloated with cum, Ji-woo spread her legs wide and proudly presented her glistening, overheated pussy.
"Perfect."
Ji-woo's plump folds were drenched in her own juices and the semen that had leaked from their previous coupling, already so slick that no extra lubrication was needed.
—Schllluuurrrp—!!!♥♥♥ "Ooooh♥♥♥♥ It's in♥♥♥ Master's massive cock♥♥"
Gripping her thighs and knees, Si-yoon drove himself all the way to the hilt. Ji-woo's sticky inner walls eagerly swallowed him down.
"You always used to do it with your mouth. It's been a while since I used your pussy, hasn't it?"
"Yes♥ Mouth-pussy feels good too… but being used exactly how Master wants is the greatest joy of all…♥"
Even as her hips and waist trembled from being impaled, Ji-woo stuck her tongue out and met his gaze, displaying the perfect slave posture.
"Your slave posture is… absolutely flawless…!"
—Schllrrk…!♥ Schllrrk…!♥ Schllrrk…!♥♥
Extremely pleased with Ji-woo's attitude, Si-yoon began pounding her without any mercy or restraint.
"Masterrr?!♥♥ Aaaah♥♥♥"
Thanks to her "Oral Sex Mastery" Slave Skill, Ji-woo was extremely skilled at using her mouth and throat for pleasure. However, her pussy was still at a beginner's level compared to Do-hwa or Chae-ryeong.
Her reaction proved it. Unlike when she had casually deepthroated him earlier, she was now completely overwhelmed.
"Ooooh…♥ Hoo…♥♥ My belly…♥ My womb is already being touched…?!♥"
—Squiiirt—!!!♥♥ Squiiirt—!!♥♥
The moment his glans kissed her cervix, she squirted violently as if a switch had been flipped, reacting just as intensely as the still Stage-2 Rui-lin.
"Haaah♥♥♥ Aaaah♥♥♥ Aaaaah♥♥♥"
Si-yoon paid no mind to her reaction and continued slamming into her roughly, mercilessly pounding her cervix and womb as if disciplining her.
"Hnnngh♥♥♥ I'm shorryyy♥♥♥ From morning♥♥ Master can use his cock however he wants♥♥♥"
Ji-woo apologized for having greedily sucked his cock like a faucet every day.
—Schllk♥ Schllk♥ Schllk♥ Schllk♥ Schllk♥ Schllk♥ Schllk♥
Despite her apology, Si-yoon's womb training showed no signs of stopping. If anything, his pistoning grew even more violent and relentless.
—Thwack!♥ Thwack!♥ Thwack!♥ Thwack!♥ Thwack!♥ Thwack!♥ Thwack!♥ Thwack!♥
The wet, destructive sounds of their hips colliding filled the room. The bed creaked in rhythm, creating a lewd melody.
"Aaaah♥♥♥ My wooooomb♥♥♥ It's being pounded flat♥♥♥ Hoooh♥♥"
Ji-woo's vulgar, sharp moans layered perfectly over that melody, completing a single, obscene symphony.
And as if announcing the climax of that symphony, his cock once again pressed hard against the deepest part of her womb.
—Bllluuurrrrrt—!!!!!!!!!♥♥♥♥♥
"Aaaaaah♥♥♥♥♥♥"
With a grand, heavy finale, a massive wave of semen flooded Ji-woo's insides like thunderous applause from an audience.