Two Lips, One Above the Other
"Even your sister says it's okay. Come here, noona."
“Yeah… Me too… I feel so guilty toward you… No matter the reason… I still slept with your husband.”
Eun-jeong’s voice carried an inexplicable note of apology.
“That’s because… it’s my fault you ended up doing that with sis…”
Eun-su’s reply was short.
She didn’t know what else to say.
“Come here. Come here and… let Tae-seok comfort you too. That way I’ll feel better.”
When Eun-jeong spoke again, Tae-seok silently extended his hand.
Toward Eun-su.
The gesture was a command, yet it was also an invitation.
As if she had no choice, Eun-su slipped into the space between them.
In truth, she had wanted this from the very beginning.
Listening to those sounds through the door, hearing her sister’s moans, she had already been waiting for this moment.
That was why she had been unable to walk away.
Tae-seok laid Eun-su face-down on top of Eun-jeong’s body.
Eun-su’s breasts pressed against Eun-jeong’s breasts.
The two sisters’ hearts felt each other beating.
Eun-jeong’s hot breath brushed the nape of Eun-su’s neck.
Eun-su’s hair spilled across Eun-jeong’s face.
Just this position was already too embarrassing, too…
arousing.
“Are you really… going to do it like this?”
Eun-su turned her head to look back at Tae-seok, but he had already knelt behind her, positioning himself.
His hand gripped Eun-su’s ass and flipped her skirt up.
There were no panties beneath her skirt.
Eun-su turned her head away in shame.
Only now did she remember stripping them off while pleasuring herself outside the door.
But there was no hiding it anymore.
Everything was already on display.
Tae-seok paused at the sight.
He lowered his gaze.
Below Eun-su’s waist rose those perfectly rounded buttocks.
Firm, exercise-toned flesh.
Elastic cheeks so tight they looked like they would spring back against his palm.
Between them, the pink membrane glistened, twitching in front of his cock.
It fluttered open and closed like it was breathing.
It shone with wetness.
And if he lowered his eyes just a fraction more, between Eun-jeong’s spread thighs lay her pussy—swollen deep red after multiple orgasms—positioned beneath Eun-su’s with an entirely different allure.
Two obscene lips, one above the other.
The most intimate places of both women filled his vision at once.
Tae-seok felt a dizzying rush.
Staring at the two bodies waiting for him, countless thoughts swirled through his mind.
Is it really okay to go this far?
This was clearly wrong.
Two sisters tangled together on a single bed with one man between them.
It was anything but normal.
The line society had drawn.
A taboo.
But the thought didn’t linger.
Instead, that very taboo burned hotter in his lower belly.
Eun-jeong, who had committed adultery with his father.
Her younger sister Eun-su, who had also cheated during her marriage.
And who, to gain the upper hand in her divorce, had allowed her own older sister to sleep with her husband.
Both women were beautiful, yet neither could claim moral purity.
Tae-seok bit his lip.
These are that kind of women. Even if it wasn’t me… they’d end up doing something even filthier with someone else.
Tae-seok drew a deep breath and justified his actions.
Guilt? I don’t need it. The morals in this house… I decide what they are.
His hand clamped firmly onto Eun-su’s ass.
With the other, he gripped his massive cock and slowly pushed it into her pussy.
Eun-su’s body shuddered as it accepted the heavy intrusion.
The feeling of her cunt being stretched and filled by the thick, burning flesh made her back arch on its own.
“Aah… ugh…!”
Tears shimmered between her half-lidded eyes.
Each thrust of Tae-seok’s hips sent waves of ecstasy crashing through her.
The friction of him driving deep and pulling out melted her softest, hottest flesh and radiated outward.
It’s too… big… I feel like my insides are melting away….
Eun-su’s fingers clawed into the pillow.
Her toes curled and spread helplessly as her legs trembled uncontrollably.
Eun-jeong lay beneath them, watching the entire scene with calm eyes.
She knew exactly what it felt like; only an hour earlier she had been twisting and crying out the same way.
As an older sister and as a woman, she understood the depth of the pleasure Eun-su was experiencing better than anyone.
Every time Tae-seok moved inside me… did I make these same sounds?
Eun-jeong read her own past in every moan that escaped her sister.
Her own body began to respond again.
Eun-jeong slowly spread her legs.
She could feel her pussy still slick, still pulsing with the lingering heat of earlier climaxes.
Tae-seok’s hips grew rougher.
Squish… squish…
Every time Eun-su’s body jolted violently above her, his heavy balls tapped against Eun-jeong’s pussy.
The warm, weighty contact stimulated her most sensitive spot and sent quiet ripples of pleasure through her.
“Aah… Tae-seok… right there… it feels so good…”
Eun-su’s voice broke.
Her inner walls squeezed his thick cock with wet, hungry pressure.
Each contraction made her melt even further.
Harder… harder… pierce me completely….
Eun-su could barely form a coherent thought.
Her body moved on instinct.
She rocked her hips in perfect time with Tae-seok’s rhythm.
Whether she willed it or not, her ass rose and fell.
When he drove in she sank down; when he withdrew she lifted up.
Perfect synchronization.
Perfect union.
Eun-jeong, who had been relaxed, felt her own body heating once more at the sight of her sister.
She had thought she had taken enough from Tae-seok earlier.
Two, three orgasms.
Anything more would be pure greed.
Yet watching her little sister take him in made fresh heat bloom inside her.
Every time his balls brushed her pussy, her body reacted.
Memories resurfaced.
The fullness of his cock stretching her.
That weight.
That depth.
It was clearly Eun-su receiving him, yet it felt as though she herself were the one being filled.
Eun-su’s moans sounded like her own.
Eun-su’s trembling felt like her own.
Thrust… thrust… thrust…
Tae-seok’s cock plunged in and out of her without pause.
With their bodies burning hotter, the two women locked eyes again.
“Sis… you’re so beautiful. Haang~”
“You’re the one who’s truly beautiful. That’s why I’m… anxious. Scared Tae-seok might be stolen by you.”
“No… that won’t happen. Sis…”
As the heat inside them rose, the desire to kiss became overwhelming.
Eun-jeong’s lips tingled.
The tip of Eun-su’s tongue burned.
An indescribable craving traveled up through their mouths.
They wanted to accept Tae-seok’s hot tongue and accelerate this fever even further.
But in this position, neither of them could reach his lips.
His mouth remained out of reach for both women.
Tae-seok was gripping Eun-su’s ass from behind and thrusting, while Eun-jeong lay pinned beneath her.
Frustration.
And that frustration guided them in another direction.
They didn’t speak, yet they understood.
The look in Eun-jeong’s eyes reflected in Eun-su’s gaze.
The longing in Eun-su’s eyes reflected in Eun-jeong’s.
Both craved Tae-seok’s lips but could not have them.
There was, however, one substitute.
Each other’s lips.
They hesitated for a moment.
This was insane.
Something they had never once considered.
Yet it happened anyway.
Eun-jeong lifted her head first, drawing closer to Eun-su’s face.
Eun-su did not pull away.
Between them came the sound of Tae-seok’s ragged breathing.
Each time Eun-su’s body jolted from his thrusts, the distance between their mouths narrowed and widened.
Eun-jeong’s upper lip brushed lightly against Eun-su’s lower lip.
It was only the briefest contact.
But the softness, the heat, the tenderness of it left both women speechless.
Neither had ever kissed a woman before.
The kisses they knew consisted only of a man’s lips, a man’s tongue, a man’s breath.
What they felt now was entirely different.
A softness unlike a man’s rough mouth.
So soft it was almost shocking.
It was hot.
Hotter than a man’s lips.
Eun-su closed her eyes.
With her vision gone, only sensation remained.
Eun-jeong’s lips.
Eun-jeong’s breath.
And the powerful thrusts driving into her from behind.
In that instant she parted her own lips.
Eun-jeong’s breath flowed in—hot and sweet.
Then came her tongue.
The kiss between the two sisters grew deeper.
They seemed to drink each other in.
Eun-jeong’s lips caught and nibbled Eun-su’s lower lip.
Her tongue slid deep into Eun-su’s mouth, licking behind her teeth, teasing the roof of her palate.
Eun-su responded in kind.
Her tongue chased and tangled with her sister’s.
The movement was nothing like a man’s.
The two tongues coiled around each other, twisting, sucking, sliding.
Slurp… sluuuurp…

The wet sounds of the sisters’ kiss blended with Tae-seok’s harsh breathing from behind.
His movements grew even more savage.
Eun-su’s body shook harder.
That motion transferred to Eun-jeong as well.
It was as if Tae-seok’s hips were orchestrating the movement of their lips too.
Yet the sisters’ mouths never parted.
Eun-jeong’s hand cupped Eun-su’s cheek.
Her fingers threaded behind Eun-su’s ear, gently stroking her hair to draw the kiss even deeper.
“Hngh……”
Tae-seok slammed his hips forward violently, eyes locked on the sight.
His gaze was fixed on their intertwined lips.
Eun-su’s pussy had already reached its limit.
Every thrust made her body convulse.
Still she did not stop.
Instead she pushed her ass back, desperate to take him deeper.
Tae-seok answered by driving into her with even greater force.
All while watching the kiss unfolding above him.
This scene had long since surpassed mere sex.
It was a moment that shattered moral boundaries and human limits.
Tae-seok felt as if he could hear those boundaries crumbling.
And the sound only excited him more.
Simply watching had already brought him to the edge.
Eun-su’s pussy tightened further.
Each thrust made it clench around his cock, refusing to let go.
Tae-seok held back no longer.
“Ugh…!”
With a short groan, his cum erupted.
It was a massive load.
Buried deep inside Eun-su’s pussy, his cock pulsed, spraying hot semen.
Once, twice, three times.
It kept pouring out without end.
Eun-su’s cunt accepted every drop.
Both of them… are my women.
After he finished, Tae-seok stared at Eun-su’s pussy still gripping his cock.
Even as it clung tightly, some of his semen leaked out, trickling down her slit and flowing onto Eun-jeong’s pussy below.
Eun-su’s body shook violently.
“Aah… it’s so hot… inside… it’s too hot…! My whole body feels like it’s melting.”