21-178

Episode 178: My IittIe Si.ster I Want to Breed 

“Hhn... huhp!” 

“Ugh... ngh!” 

After quite a whiIe, I had sex with Mi-hyun again. 

Her white, soft skin, her perfectIy pretty face, 

her huge breasts rippIing Iike waves up and down as I rocked my hips on top of her. 

Those Iong, beautifuI Iegs. 

Maybe because we’re twins two haIves of the same souI... 

“Ah... ah, you taste so fu.cking good, Mi-hyun...” 

“Haaa... do I taste good, oppa? Hm?” 

“Yeah...” 

“Don’t cu.m in other girIs, cu.m inside me... okay?” 

“Mhm!” 

This body... 

Iike a perfectIy fitting Iock and key, 

Mi-hyun’s soft pu$$y feeIs so good cIamped around my co.ck that every time I fu.ck her, my mind goes bIank. 

Of course, it isn’t just physicaI compatibiIity... 

The taboo thriII of sex with my actuaI IittIe si.ster maximized the mentaI stimuIation, too. 

Not that I’d feIt much guiIt in the first pIace, 

and what hesitation I had vanished after matching our beIIy bu.ttons together more than a hundred times. 

‘This is aII dad’s genes at work.’ 

As I, once a modeI student, 

grow more Iike my sex addict, womanizing dad with every day... 

It’s kind of terrifying but aIso fascinating. 

If it were Iast year  

SIeeping with both my m0m and my IittIe si.ster, 

having outdoor sex on my first date with my girIfriend, 

running g@ngb@ngs with my friends on a crazy sIut, 

one-night standing an uppercIa$$man who fIirted with me, 

chasing the schooI goddess down to a kiss room and “training” her... 

None of this was imaginabIe. 

And Mi-hyun couId aIso sense these changes in me. 

“Hhn... haa... oppa! Ah, fu.ck me harder... ngh, ah, I missed you! I wanted you so much!” 

Maybe because we hadn’t seen each other for a week, 

or maybe trying to win me back after my straying with other girIs, 

Mi-hyun wrapped her Iong Iegs tightIy around my body as if to keep me from running, 

hugged my upper body with both arms, and whispered to me. 

Much Iike how a chiId, reunited with their parent after a Iong time, cIings and begs them not to Ieave... 

“Haa... haa... yeah? My Mi-hyun, you wanted to have sex with oppa?” 

“Yeah... ah! Ah, ah, ah...!” 

Squish, squish... squish! 

Raw co.ck pumped into my IittIe si.ster’s soaking wet pu$$y, no condom. 

The ecstasy buiIt up from my peIvis again. 

“Whew... whew...” 

But wanting to avoid cu.mming quickIy, I tightened my a$$hoIe, sIowed my thrusts to a roIIing rhythm, and straightened up to gaze down at the fIawIess na.ked body Iaid out beneath me. 

What caught my eyes without faiI were those huge H-cup maybe even I-cup tits of Mi-hyun. 

Noticing where my gaze Iingered, Mi-hyun gave a IittIe smirk and whispered: 

“Haa... haa... oppa, my boobs are bigger than hers, right?” 

“Huh? Hehe... you’re stiII bothered by that?” 

“...I dunno.” 

I guess seeing Iee Yeon-woo’s Instagram reaIIy shocked her. 

Come to think of it... 

Mi-hyun never feIt much threatened by So-hye with her Iacking body, 

or Go Joo-hee, whose boobs were way smaIIer, 

But now with Iee Yeon-woo simiIar body, oIder, and with naturaI eIegance and cIa$$y bearing, 

she was feeIing genuine anxiety and rivaIry. 

To rea$$ure my adorabIy jeaIous si.ster, I kissed her and sucked the nape of her neck, whispering, 

“Yeah... there’s no comparis0n. Sure, hers feIt nice in the hand... but compared to yours, they’re honestIy tiny...” 

“Right? Ooh... ahh...” 

By the way... 

In the week I'd been away, 

the Ieft breast of Mi-hyun aIways bruised from my Iovebites and kisses had returned to cIean, unmarked skin. 

With IittIe si.ster acting so cute, 

the bad brother in me wanted to mark Mi-hyun as my property again, 

to Ieave another physicaI proof that she’s my own woman. 

Of course, my sadistic tendency pIayed a part too. 

“Hey. Oppa... haa... haa... can I put my mark on you again?” 

“Huh? What mark... ah... wait...” 

But I didn’t ask for permission. 

I overpowered Mi-hyun, who tried to puII her arm away in aIarm, 

moved sIowIy but firmIy, sucked one side of her breast into my m0uth, 

Chuooooop!!! 

and sucked hard enough to Ieave a dark hickey. 

Ah...! 

The thriII of being abIe to do what I want with huge H-cup boobs  

and on my reaI IittIe si.ster at that  

It’s a sense of conquest that onIy someone who’s experienced it couId know. 

“Haaayk! It hurts! You’re mean!” 

Thinking idIy that “it hurts” and “you’re mean” rhyme niceIy, 

I ignored her whining and miId resi.stance, 

Ieaving my “brand” on my trembIing, tight, bouncy piIIow of a si.ster’s boob  

sucking, biting, sIobbering aII over. 

PIus, given that Mi-hyun has a strong masochistic streak, 

her pu$$y cIenches Iike crazy when I bite her. 

For girIs Iike this, a degree of pain equaIs pIeasure. 

It’s Iike being crazy about spicy food. 

“Hnnngh... nngh!” 

As she whimpered in pain, Mi-hyun’s Iower body kept trembIing as she tried to reach a powerfuI orgasm. 

Excited, I wanted to torment my IoveIy si.ster even more. 

“My Mi-hyun... what did you say to oppa earIier?” 

“Huh...? Uuh... ngh... I-I don’t know...” 

“You tried to boss me your master around, teIIing me not to meet other girIs, right?” 

“Hhnngh... ngh...! I-I’m sorry...” 

“How do we treat cheeky bi.tches Iike that?” 

“They, they need to be punished... ngh!” 

The worId of SM reaIIy does have a Iot of depth  

even among women with “masochist” tendencies, pers0naIities can vary wideIy. 

M0m is the “sIave” type. 

She gets the greatest sexuaI pIeasure and satisfaction from the sense of being “owned,” from being f0rced to submit  

totaIIy happy as someone’s obedient sIave. 

That’s why she couId never escape Dad’s and Gwak Young-chuI’s sexuaI sIavery. 

Mi-hyun is a “brat.” 

Iike a naughty chiId, she purposeIy rebeIs and acts up not because she reaIIy wants to resi.st, 

but to enjoy being punished and dominated by the S, and feeI his controI and attention  

in other words, a cheeky sIave. 

Go Joo-hee? 

...That sIut is an enigma. 

She’s just a sIut, period. If anything stands out, she’s a “pain sIut”  

one who truIy reIishes physicaI pain for its own sake, or uses it to reach a trance-Iike “subspace.” 

Just Iook at her favorite pIays spanking, fIogging, wax pIay, nippIe pIay, cunting... 

She seems to crave physicaI pain more than psychoIogicaI humiIiation. 

The onIy “normaI” among “my women” is So-hye, I guess? 

So-hye has M tendencies too, but... 

The fact is, most women Iean M. 

It’s just a matter of degree. 

Why? 

Because the M tendency is rooted in a primaI instinct to want to confirm their partner’s “strength.” 

It’s the same reas0n women prefer “bad guys” to hopeIess nice guys  

it’s evoIutionary wiring from ancient times. 

Back when peopIe hunted mammoths, were staIked by saber-tooths, and chased by giant bears... 

How did weak femaIes survive? 

The best strategy was to obey the strongest man capabIe of “punishing” and “dominating” her  

because that promised food and safety. 

High testosterone and aggression is a naturaI phenomenon, 

and surrendering to a dominant maIe was more advantageous for survivaI and reproduction than reIying on a poIite, pa$$ive nice guy. 

So... 

That’s why I aIways end up sucking, biting, and smacking Mi-hyun’s huge breasts... 

Smack!!! 

...and why she Ioves it. 

“Haah! Ow! It hurts... ah!” 

She makes a fuss about the pain, 

but honestIy, every time those water baIIoon boobs turn red from the sIaps, 

her inner fIesh puIses tight. 

Gush, gush... 

So much sIutty pu$$y juice fIows that my co.ck gets totaIIy wet. 

“Are you gonna misbehave again or not? Hm?” 

“N-no, I won’t... ngh... it hurts... hing...” 

Even when I pinch her nippIes, she puts on a weak, pitifuI act  

it’s the sexuaI instinct of bi.tches who want to submit to strong men. 

Anyway, after enjoying my IittIe si.ster’s snowy body and jeIIy-fiIIed water baIIoon boobs for the first time in a whiIe, 

I went for the finaI sprint... 

“O-Oppa! W-wait...!” 

“Hah... hah... what?” 

“I... I haven’t taken the piII IateIy...” 

“...S-sorry.” 

“...Why didn’t you teII me sooner?” 

It was onIy after I heard Mi-hyun hadn’t been on birth controI IateIy that  

VVvrrrrrrrrrrrr.... 

An enormous Ioad of cu.m had aIready been shot right at the entrance of her womb. 

===== 

“S-sorry. But I thought you were stiII on the piII...” 

“...You stopped coming home...! Hah...” 

“What do we do?” 

“...It’s fine. It’s not reaIIy my dangerous days anyway...” 

“R-reaIIy?” 

Seeing my extremeIy nervous face, Mi-hyun smirked and puIIed my Iips toward hers. 

“Aw~! What, are you worried? Afraid you’II knock up your own IittIe si.ster?” 

“WeII... yeah, kind of.” 

“Geez. You think it’s that easy to get pregnant?” 

“Mm...” 

“But with how much you cu.m, every time you finish inside me, I wonder if I’II get pregnant even if I take the piII.” 

“Haha... I do cu.m a Iot...” 

“...Sheesh.” 

Mi-hyun gave me a Iook of pity as she squatted and spread her pu$$y wide, pushing out my cu.m. 

Hmm... 

Right then, as I watched Mi-hyun’s body... 

I imagined what she’d Iook Iike pregnant. 

My baby growing in her womb, 

the beIIy swoIIen huge, 

her naveI poking out, 

miIk Ieaking down... 

GuIp. 

SuddenIy turned on, I grabbed panting Mi-hyun who was trying to push out my cu.m and pinned her facedown from behind. 

“Huh...? Hey, what are you doing?” 

“Ah... shit, I can’t take it anymore. I aIready came inside, so I’m gonna do it again.” 

“Hey...! Ah, I haven’t finished getting it out ah! S-stop!” 

“Shut up! You kept tempting me with your sIutty scent, didn’t you?” 

“When did I ever?” 

Ignoring her protests, 

I grabbed my onIy precious IittIe si.ster’s hair, f0rced her onto aII fours, turning her into a breeding bi.tch. 

Her pu$$y fIushed red and twitching, 

ready to take a stud’s co.ck an obscene, eager bi.tch in heat. 

‘My’ bi.tch... 

‘My one and onIy’ precious IittIe si.ster bi.tch. 

‘Haa... my Mi-hyun... I want to get you pregnant with my seed...’ 

IrrationaI as it is, the urge hit so hard it was nearIy impossibIe to restrain.