Chapter 285 (Se-hee)
Translator: RaidenTL
Chapter 285 (Se-hee)

While I spent a good while lapping at Se-hee Noona’s pussy, her arm—which had been tucked under the covers holding her smartphone—slumped down to the floor.
Si-woo paused his intense cunnilingus, parting the folds of her labia, and pulled his mouth away from her pussy.
"Did you see everything?"
Si-woo asked, as if to confirm, looking at Se-hee Noona as she lay there trembling.
"Yes... ugh... yeah... I... I saw..."
Se-hee Noona stammered her response.
It was an awkward mix of formal and informal speech.
Although Se-hee Noona had agreed to enter a master-slave relationship with Si-woo, she still seemed confused about how to treat him in front of the family or other people.
She seemed even more bewildered after reading the private text messages Si-woo and Mom had exchanged last night and this morning.
Those messages contained rules about maintaining their master-slave relationship during the night, only to revert to a mother-son relationship in front of the family during the day.
"It’s okay to use informal speech during the day! That’s what I agreed to do with Mom in front of the others from now on!"
Si-woo spoke as if summarizing the contents of his conversation with Mom for Se-hee Noona.
It was as if he were demanding that Se-hee Noona follow the same new master-slave rules he and Mom had established...
"Instead, when it's just the two of us like this during the day, you can do whatever you want. I won't say anything."
Si-woo added, explaining the exceptions to the rule.
"...O-okay..."
As if still finding it awkward to use formal speech with Si-woo right after waking up, Se-hee Noona replied shyly in informal speech from beneath the blanket.
Satisfied with her answer, Si-woo pressed his lips against the mound of her groin once more.
His tongue now began a concentrated assault on Se-hee Noona’s clitoris.
Slurp, squelch! Sluuurp! Smack!
Si-woo used his tongue to lick and flick the protruding nub with long, sweeping strokes.
"Haah... Ahh! Haaah...!"
Se-hee Noona’s muffled, high-pitched moans echoed from under the blanket.
Under the intense stimulation focused on her clitoris, Se-hee Noona pulled her hips back and arched her waist upward.
Si-woo’s tongue clung tenaciously to her sensitized nub.
Se-hee Noona’s thighs, which had been spread wide, suddenly clamped around Si-woo’s head as if to trap him.
"Haa-ah... Hngh... Ha-ahhh!"
Lubricant began to gush in waves from Se-hee Noona’s valley.
The bedsheets beneath her buttocks were soaked through, as if she had wet herself.
Unable to endure any longer, Se-hee Noona reached her climax, her body twisting and convulsing as she squeezed out every last drop of pleasure.
Si-woo didn't let her go, relentlessly rubbing her clitoris.
Even as Se-hee Noona pulled her pelvis back and writhed, Si-woo’s tongue continued to torment her sensitive nub with single-minded focus.
After the provocative stimulation continued for a while, Se-hee Noona seemed to give up her resistance. She relaxed her body and pushed her pelvis forward toward Si-woo’s mouth.
The strength in her thighs, which had been gripping Si-woo’s head, suddenly collapsed and gave way.
Se-hee Noona’s body began to shudder violently, her muscles twitching.
Her pelvis bucked intermittently.
"Hap...! Ha-ah...! Hngh!... Ha-ah!..."
Every time her pelvis jerked, a frantic moan escaped Se-hee Noona’s lips.
"Haa... Ma... Master! Hngh... P-please... save me!"
Finally, the submissive title and the safe word spilled out of Se-hee Noona’s mouth as if she were surrendering.
Only then did Si-woo pull his lips and tongue away from her clitoris.
Residual tremors ran through Se-hee Noona’s entire body, as if she no longer knew how to control her own limbs.
* * *
A brief lull followed.
The tremors and spasms in Se-hee Noona’s body slowly began to subside.
Her thighs lay spread open, twitching weakly from exhaustion.
On the delicate skin of her inner thigh, Shin-bi Noona’s initial tattoo—the letters B S—could be seen overlapping with the still-unhealed marks of hickeys.
Si-woo placed his finger on the initial tattoo etched into Se-hee Noona’s inner thigh.
He slowly traced the strokes of the ornate English initials with his fingernail, as if lightly scratching the skin.
Then, moving his finger to the other thigh, Si-woo began to trace the spelling of his own name.
The letters S W Y were etched as white marks on her other thigh.
Following that, Si-woo traced the initials S... M... N...
It was as if he hoped Se-hee Noona could form the same intimate relationship with Mom as she had with Shin-bi Noona...
As the white lines were drawn one after another with provocative pressure on her slick, sensitive skin, Se-hee Noona’s body flinched in response.
* * *
Si-woo raised his upper body slightly and crawled under the blanket Se-hee Noona was using.
Positioned under the blanket that only covered her upper body, Si-woo looked down at her.
Se-hee Noona’s face and breasts were hidden behind her arms.
Si-woo took her arms and pulled them apart, pinning them to the bed.
Without resistance, Se-hee Noona let her arms be moved.
Her face was flushed red and contorted as if she were in pain.
Si-woo aligned his erect cock with Se-hee Noona’s wet cave.
Squelch!
The condom-clad glans pushed into the gap of her slightly parted cave entrance.
As he thrust his penis inside, Si-woo pressed his body against Se-hee Noona’s under the blanket.
"Haa-ah!"
Se-hee Noona let out a startled moan as Si-woo’s large, heavy penis slid deep into her pussy hole.
She wrapped her arms around Si-woo’s neck.
Her legs instinctively locked around his waist as well.
—As if to prevent the penis from thrusting any deeper...—
The muscles of her arms and thighs coiled around Si-woo’s body.
The sensation of her full breasts and fine skin pressed against him.
"Do you remember where you got it done? Tell me the name of the shop later via text."
Si-woo asked for the name of the place where she got the initial tattoo.
All while keeping his penis halfway inside Se-hee Noona’s pussy hole...
—Even though it was only halfway, it was enough to completely fill her pussy hole.—
"Y-yes..."
Se-hee Noona replied in a shy voice, as if she knew exactly why Si-woo was asking for the name of the tattoo shop.
Si-woo intended to have his own initials tattooed on both Mom and Se-hee Noona’s bodies as a slave's mark soon.
He also hoped that Mom and Se-hee Noona’s relationship would develop to the point where they would be willing to tattoo each other's initials on their bodies.
As if she understood even that, Se-hee Noona gave her shy answer while her pussy hole clamped down hard on Si-woo’s cock.
"D-did you... do it with Mom this morning too?"
Se-hee Noona asked, as if confirming what she had learned about Si-woo and Mom from his smartphone.
"Ah~ in her mouth and on her face. We were in a hurry in the changing room and didn't have a condom. I decided to give her her punishment this evening!"
Si-woo spoke to Se-hee Noona as if boasting about his achievement in getting back at Mom for the humiliation he suffered this morning.
"A-after that... did Mom... say anything?"
Se-hee Noona asked, curious about Mom's reaction after Si-woo had disgraced her in the changing room.
"Nah... she only acts like that in front of Se-young! When it's just the two of us, I'll make sure she can't even squeak! So don't you worry either, Se-hee!"
Si-woo replied triumphantly to Se-hee Noona’s question.
Squish! Squish! Squish! Squish!
As he spoke, Si-woo moved his penis back and forth inside Se-hee Noona’s pussy hole as if showing off.
"Ah! Haa... Ahh! Haa-ah!"
Se-hee Noona moaned in rhythm with Si-woo’s penis scraping against her pussy hole.
"I'm not worried... Haa-ah... Hnghh...!"
Se-hee Noona replied, struggling to pull Si-woo closer with her arms and legs.
"By the way, Se-hee, you must have been really tired from letting Se-young nurse all night. You almost never sleep in this late, do you?"
Si-woo stopped moving his hips and asked, sounding concerned for her.
"...After you left, Se-young... k-kept her mouth on my nipple... I couldn't sleep a wink until late... I don't know how Mom endures that every day... Hngh..."
As if remembering the 'torture' she endured from Se-young last night, Se-hee Noona’s pussy hole clamped down hard on Si-woo’s penis while she talked about Se-young falling asleep with her nipple in her mouth.
"If it was that hard, you could have just stayed and slept in my room. Why did you go back after cleaning up my room?"
Si-woo asked, certain that it was Se-hee Noona who had cleaned up the traces of his ejaculation from his masturbation in his room early that morning.
At Si-woo’s question, Se-hee Noona’s pussy hole tightened.
"T-that... wasn't me..."
Se-hee Noona answered.
"Huh? It wasn't?"
Si-woo asked back, sounding puzzled by her claim that she wasn't the one who had visited his room in the early hours of the morning.