I broke out in a cold sweat.
Even though my mother-in-law is now my sex slave and calls me Master, before that, she's Yeonji's mother and Yeonhee's stepmother.
But to get excited—erect—over a daughter who isn't even my fiancée?
Any mother would be furious.
"Hehe… don't worry… I'm not angry, and I'm not planning to say anything."
"R-Really?… Hahaha…"
Thankfully, she smiles like it's nothing.
"You're a man. It's natural to get hard when Yeonhee looks like that… I was actually expecting you to come straight to me after your jog♥"
"Well, I was sweaty… and short on time."
"Oh my… if you'd come right over, I could've washed you… or licked every drop of sweat off with my tongue, Master♥"
"I'll… think about it…"
As expected of my mother-in-law— her perversion defies imagination.
I'm honestly stunned.
I can't even guess how deep her kink runs…
Rude, maybe, but her thoughts always leap past anything I expect.
"I'll bring tea. Please sit."
"Ah! I'll get it."
"Oh my… no slave tells their Master to fetch tea, do they?♥"
"Ugh… Okay… yes, I understand…"
Her tone is light, but the master-slave dynamic is ironclad.
Even small things— I need to act the part.
My marriage to Yeonji depends on it…
If I don't meet her standards as Master, the wedding could vanish.
Even if it means going back to delivery runs, I want Yeonji.
So I'm anxious about how to behave.
Should I be forceful like during sex?… Or play the dutiful son-in-law and strike when the mood's right?
While I ponder, she returns with tea.
"Huh? Only one cup?"
"Yes— tea for Master, and…"
Swoosh
"M-Mother-in-law?!"
"This is my tea (semen) to drink♥"
She unzips my pants, pulls out my cock with practiced speed— before I can react, it's in her hand.
"Haa♥… Next time after a workout, let me suck your sweaty cock♥… I'll clean it with my pussy-mouth♥"
She was serious…
I thought it was slave talk— but she wants to lick my sweat, grinning lewdly.
"Then… may I drink my tea?♥"
She beams at my cock like it's a gift, but still asks permission— polite despite her hunger.
"…Wondering?"
"Pleaase♥"
Her pleading eyes spark male dominance— I hold back on purpose, savoring it.
My cock hardens, craving that masochistic throat.
She smiles deeper at the sight.
"Please, I beg you, Master♥"
Wiggle wiggle wiggle
She drops into dogeza— ass high, swaying side to side.
"I'll suck you with my Master-only pussy-mouth until you feel good♥ If you don't like it, grab my hair and fuck my face— use this masochistic onahole just once♥"
She degrades herself pitifully, begging to suck me.
By looks alone— any man would worship her toes.
And this goddess pleads to service my cock.
How can I resist?
"You can suck it!"
"Yes, thank you, Master♥♥"
Permission granted— she lights up, crawling closer.
"The sow greets Master's cock… kiss♥"
She kisses the tip, swearing loyalty.
I don't even have time for tea!
My cup cools— hers is heating up.
"Before I start… one suggestion, Master?"
"A suggestion?… What?"
"Would you… like a pussy-mouth blowjob from Yeonhee?"
"W-What!?"
Is she insane?! Offering her other daughter too!?
"Of course, if Yeonhee refuses, it can't happen… but I can give you a similar experience♥"
"Haa… Okay, what is it?"
Thankfully, she's not that unhinged.
"I can imitate Yeonhee's voice… I'll suck you as if it's her— how's that?♥"
"Voice imitation? …Do as you like."
"Yes, thank you, Master♥"
She'll blow me while sounding like her daughter.
I don't know how close it'll be— but it's not a bad idea.
I feel a twinge of guilt for Yeonhee, but I agree.
"Hehehe♥… Okay then♥"
"M-Mother-in-law?!"
She flashes a filthy grin, slips off her panties, and drapes them over my head— blindfolding me.
"You'll feel it more without sight♥"
She planned this…
Usually sheer— today's were thicker.
Premeditated.
But… not bad…
The musky scent from her panties only heightens my arousal.
"Then… I'll begin… Juhyun-nim."
"!!"
Her voice shifts— ears deceived, it is Yeonhee speaking.
It's uncanny!
I expected rough similarity— but "Juhyun-nim" alone convinces me.
"I'll now begin the secretary's pussy-mouth service— please let me know if anything's uncomfortable."
"Ah… um… okay… yes."
Tone, pitch, cadence— perfect Yeonhee.
I'm convinced.
"Lick♥"
"Ugh!?"
I know it's Mother-in-law— but the illusion of Yeonhee's tongue stiffens me.
"Thank you for letting me lick Juhyun-nim's big, strong cock… kiss♥"
"Haa… Y-Yeonhee."
"Yes— call me a bitch, please."
"Bitch…"
Words real Yeonhee would never say.
The depravity makes my cock throb harder.
"I'll serve better than Madam's old pussy— if you don't need that hag, use me instead."
"Don't talk like that about your m-mother-in-law… Ugh!"
"Slurp♥ Suck♥ Haa♥ Madam and I exist only to be Juhyun-nim's sex slaves… no need for a pussy that fails to please Slurp♥ Mwah♥"
She's deepthroating me now— serving with devotion.
I know it's her talking to herself… but it's too fucking hot!!
It's as if Yeonhee is my slave, insulting her own mother.
My cock leaks precum from the taboo rush.
"Slurp♥ Suck♥ Mwah♥ Haa♥… Thank you for letting me taste Juhyun-nim's delicious precum♥ Lick♥"
"Haa… Eat more, you bitch!"
"Yes, Juhyun-nim♥ Slurp♥ Ooh♥ Slurp♥"
Blindfolded, the mental image of Yeonhee sucking me is vivid— dark desires boiling over.
"Why… are you so good at this?… Have you sucked a lot of cocks?"
"Mwah♥ Haa♥… No… I've practiced daily with a dildo in my room— dreaming of the day I'd serve Juhyun-nim's cock."
"You filthy bitch!"
"Ooh!?♥"
Every word stokes male ego.
I grab her head, force her deeper.
"You act all cool— but go cock-crazy the second you see one!!"
"Ooh!?♥ Ooh!?♥ Ooh!?♥ Ooh!?♥"
No breath— I fuck her throat raw.
She gags, but I don't stop.
I'm close.
Thinking I'm face-fucking Yeonhee… it's pushing me over!
Her depravity rivals her mother's.
Sensing climax, she sucks harder— begging for my load.
"I'm gonna cum!"
Brrt brrt brrt brrt brrt
"Ubuuuuuuung?!?♥♥… gulp♥ gulp♥ gulp♥"
Semen blasts down her throat like a hose.
Some backs up— I hold her down, making her swallow every drop.
"Haa… haa… phew…"
"Cough♥ Cough♥ Cough♥… Haa♥… Thank you for Juhyun-nim's precious semen… kiss♥… kiss♥"
Yeonhee (Mother-in-law) thanks me.
Drained, I slowly remove the blindfold (panties).
"Hehehe♥… Satisfied, Master?♥"
There she is— my mother-in-law, licking cum from her lips with a wicked grin.
"...Yes."