A Perfect Fit
With a wet squelch, my length followed the demon's guiding touch as it slid into the saleswoman's body, and that familiar, wonderful tightness wrapped around me at once.
The nectar flowing from her depths served as lubricant, drawing me deeper, and a warm, sticky wetness filled her completely.
"Ahn♥"
With a petulant little whine, the saleswoman squeezed her thighs inward and trembled all over — I could feel that the penetration alone had already pushed her over the edge once.
"S-so, Mr. Seon, how does it feel, heeheeheet! My, my pussy inside — does it f-feel g-good?"
Dazed from her climax, the saleswoman grinned up at me with a slurred, tongue-tied voice.
Looking down at her — a person whose mind had come apart at the seams — an inexplicable shiver ran through me again.
It was obvious that this woman, Ahn Yua, had lived a perfectly decent life until now.
Simply working as a fitting model for a luxury brand like this was enough to imagine how glamorous her world must have been.
Blessed with natural looks and a meticulously maintained figure, she had surely drawn endless admirers and lived a life that looked enviable from the outside.
Watching that life shatter and break in real time, right before my eyes, sent a chill crawling up my spine.
She had been born from her mother's womb and spent her entire life clawing fiercely through competition with others. If everything she'd built through effort, luck, and talent could twist out of shape in a single instant — and if this was the ending it all led to — then there was nothing to do but laugh.
"W-we need to measure for jacket size too, so please push in deeper, Mr. Seon! Heet! We have to take the measurements precisely, so that your cock won't feel cramped when you're erect later… so please, hnnk! Enjoy my pussy as much as you… eh? My pussy?… Nnn, wh-why, u-uh? E-eh? I… why, wh-what am I…? What is this…?"
The saleswoman's face twisted horribly, as if she'd drunk all night and woken with the worst hangover of her life.
She couldn't process the sheer abnormality of the situation — having sex with a customer inside the store — and then, slowly, terror and dread surfaced across her features until her face went deathly pale.
"Kyaaak—!! What are you doing?! Somebody, somebody help meeee—"
Pop.
"Mmph!?"
The moment the saleswoman seemed to come to her senses and tried to cry out for help, a single black tentacle burrowed into her ear and smothered the scream in her throat.
"Oghoghogh! Ghogho! Kiiheeehee…hee…heet…"
With a snickering sound that could have been moaning or laughter, the saleswoman's eyes spun in opposite directions as the awareness she'd clawed back was edited and rewritten by the demon all over again.
"S-sorry, the toy broke, so I fixed it! You can use it again!!"
Apparently this had never happened before, because for the first time the demon offered me an excuse in a flustered scramble.
My cock, which had swelled at the shock of the saleswoman suddenly regaining her memories, had gone limp.
And the demon, seeing it, turned white as a sheet.
As though the world itself had ended, terror caked thickly across her face.
"No… my love was feeling so good… it should be the moment he's happiest… and because of me… aah… no, no, nooo…!! I-I'll make it up to you…"
Mumbling in a voice steeped in guilt, the demon hurriedly began tearing at her own clothes, desperate to use her own body to salvage what had wilted.
"Our store specializes in custom-tailored suits, so we also take great care in measuring our valued customer's most precious region."
That instant.
Like a broken machine coming back online and abruptly whirring to life, the saleswoman flashed a practiced business smile and spoke in a voice restored to perfect composure.
For a moment I went numb at the sight of her — back to normal, as if her personality had been transfigured entirely — and then, because the situation was so absurd, I started laughing.
The demon watched my laughter with anxious eyes, then clutched her chest and let out a deep, shuddering sigh of relief.
"Are you all right, sir? Did you perhaps… not care for my pussy as your cock-measuring instrument? If that's the case, I sincerely apologize, sir."
Watching her bow her head in apology with my cock still connected inside her, the corners of my mouth curled up into a sneer.
"It's fine. More importantly — may we continue the measurement?"
"Of course, sir. Along with the size measurement, please feel free to enjoy Ahn Yua's pussy to your heart's content♥"
Recognizing me as a customer once more, the saleswoman gave a flawless, well-manufactured smile.
Seeing her play the fool, completely unaware that someone was puppeting her, made my wilted cock swell hard again.
Squuuish…
Pressing my hips down slowly, I sank my cock deep into her pussy.
Aaah… yes. This feeling is the best, every single time…
The sensation of filling a woman's most precious place with myself.
This arrangement — a woman's very existence reduced to a receptacle for a man's lust.
"Thank you for resuming the measurement, sir. Your cock is so large and imposing. Truly magnificent."
Squelch♥, squelch♥…
As my cock slid back and forth inside her, the saleswoman kept a courteous smile and offered me her professional words of gratitude and praise.
Her total obliviousness to the mockery being made of her own self stirred my excitement all the more.
"Do you have a boyfriend?"
"Huh? A boyfriend… why do you…"
Her eyes, clouded with confusion, seemed to sharpen for a moment before surrendering the effort and drifting apart again in helplessness.
Regathering her fading smile, the saleswoman answered.
"Yes, I do, sir."
"When did you last have sex?"
"Yesterday evening."
She answered my invasive questions without the slightest hesitation, utterly unguarded.
"What's his name?"
"Ha Yujong."
"Older than you?"
"Yes."
Then a wonderful idea came to me.
"Then keep having sex — or rather, keep measuring my cock — while thinking of me as your boyfriend."
"Yujong… oppa…? Yujong… oppa, my love… my boyfriend… aah… oppa, I love you, Yujong oppa♥"
At first she called me by that strange name, and then layered the boyfriend she loved over the man I was, her voice brimming with genuine affection.
With hearts practically floating in her eyes, that love-drunk gaze hungered for me so intensely that any lingering thought of savoring this slowly evaporated completely.
SLAM—!!
The immorality of stealing another man's woman excited me so much that I hammered my hips with everything I had, and the brutal sound of flesh slamming against flesh echoed through the room.
"Heeuuuugh—!!!"
A moan laced with carnal abandon burst out of her, and her clenching pussy convulsed again, spewing hot liquid around me.
But this time I paid no mind to whether the toy had come or not, and simply kept using the saleswoman's body to satisfy my own selfish pleasure.
Smack!! Smack!!…
Every time flesh crashed together, her nectar sprayed outward, the mounting climax coiling tighter, my roughening movements drawing out more and more of that violent sound.
Arching beneath me, the saleswoman cried oppa! Yujong oppa!! over and over, calling me her boyfriend as she came again and again.
"This is the moment my love feels the greatest pleasure — the moment I'm happiest…! My love, look at me. Show me the way you rejoice, drenched in bliss!"
Sensing I was reaching the end, the demon pressed close against me, feeding her own happiness through my joy.
Spurt…ing…!!
Pssshhhoooot—!!
"Oghoooooooh———♥♥♥"
The saleswoman screamed as I peaked with her.
By now I no longer worried about pregnancy from finishing inside her at all.
My sense of morality lay in ruins, and I came irresponsibly deep inside the saleswoman's womb — and pleasure overwhelmed me with all the force of everything I'd been holding back.
"Nngh…"
Having emptied every last drop of my desire into her, strength drained from my body and a pleasant, boneless exhaustion washed over me.
Shhhlick…
As I pulled out of her, I wiped the remnants from my length off casually on the woman's body like she was a tissue.
"Hiiyat—!! Hee… heehee…"
Eyes rolled back, body flinching, giggling like a lunatic — the saleswoman looked exactly like a broken machine.
Seeing her like that through the sanity the afterglow had returned to me, the fear of what I'd done crept in belatedly — the fear of having crossed a line that should never have been crossed.
Sticky…
Thinking I needed to assess the situation, I started to turn toward the demon — and my fingertips brushed against something slick.
At some point Jia had sunk down onto the floor, and beneath her skirt, fluid was trickling out in a steady stream.
There was so much of it, it was hard to believe it had come from a single human body.
"I was watching you be so happy that it started leaking out of me… a woman's body is so sensitive, I still can't control the biological responses properly."
The demon was smiling at me strangely, but that smile didn't look sane in the slightest.
As if she'd let go of the thread of her reason entirely, the demon looked precarious and unsettling.
"As long as you're happy, I don't care if you use a human woman like this. These things are only objects, after all. So I thought I could bear it — but…"
Thump.
"Ugh! J-Jia…?"
The demon closed the distance, shoved me down onto the floor, and climbed astride my lower abdomen, looking down at me.
"I can't stand it. I can't bear it. I want to mate with you. I want to kiss you. I want to share love with you. I never knew I was a creature with so little patience… I thought I could endure a little longer, for your sake… but I can't endure it anymore."
The demon broke into a dazzling, utterly deranged smile, cupped my cheeks in both hands, and whispered with her face pressed to mine.
"Oppa… can I be a little greedy? Just a little… just a little, is it all right if I become your shameless little sister?"
When the demon spoke in Yoon Jia's voice — in a little sister's voice — my wilted cock surged back to life.
No…
A voice of clumsy resistance echoed from somewhere inside me, but my honest body answered obediently, instantly.
Jia's gaze dropped to my swollen length, and when our eyes met again, she smiled sweetly.
"Don't worry, oppa. The more you break, the further you drift from being human, the happier you'll become. Even if something slips out of alignment, it's fine. I'll fit it back into place, so there's nothing to worry about. Your body, and your mind…"
Jia — the demon — lifted her hips and lowered the spread hole of her body onto my rearing cock.
Squelch!
Her insides, already broken in once, carried a trace of familiarity as they swallowed me again.
But that familiarity didn't dull the pleasure even slightly.
If anything, the sense of conquest — of having violated the beloved little sister I'd once longed for — only stoked the pleasure higher.
"I'm never letting you go, oppa. My very own… precious oppa."
Jia licked her lips with her long, serpentine tongue, leaving them glistening, and flashed her eyes at me — finally baring the hunger she'd been holding back all this time.