The Hikikomori's Resistance
Seong Yua's voice trembled as she fired off her words like a machine gun.
Stamina Booster
“Ah…! No, not inside…!”
Thrust. Thrust. Thrust. Thrust.
“Kim… Junyoung, ah♡ S-stop! You can’t! Not inside, I’ll get pregnant, hngh♡ I-I can’t get pregnant! Mr. Kim Junyoung!”
Seong Yua’s trembling voice spilled out in a frantic rush.
Thrust. Thrust. Thrust.
“M-Mr. Kim Junyoung, hngh♡ Y-you can’t cum inside…”
Thrust. Thrust. Thrust. Thrust.
“I-I’m just an assistant… If I get pregnant, it will interfere with the project’s p-progress, ngh♡ It will cause problems with the project…!”
Thrust. Thrust. Thrust. Thrust. Thrust. Thrust. Thrust.
“It’s absolutely not a g-good choice!”
Thrust. Thrust. Thrust. Thrust. Thrust. Thrust. Thrust. Thrust. Thrust.
“P-please… not inside, ah, you can’t, please stop, hngh♡ Please stop, Mr. Kim Junyoung!”
Thrust. Thrust. Thrust. Thrust. Thrust. Thrust. Thrust. Thrust. Thrust. Thrust. Thrust. Thrust.
“N-no, heuht…♡! Mr. Kim Junyoung! Your balls are pulling up tight, hngh♡ Your glans is swelling… P-please, it’s really about to come out, hngh, ngh, hnguuuuh…!”
Seong Yua’s words cut off mid-sentence as her body began to thrash in the grip of her own climax.
‘Ah… Watching Seong Yua desperately beg me not to knock her up is so fucking hot…’
Even her pussy, terrified of pregnancy, clamped down on my cock with incredible tightness, squeezing and sucking with wet, rhythmic pulses.
I devoured her lips in a greedy kiss and pinned her down hard with my body. Then I picked up the pace of my hips.
Thwack! Thwack! Thwack! Thwack! Thwack!
“Chuuup, hrrup, chup! Hrrup!”
“Hnghbuup! Emergency, ngh! Hngh♡ Ngh♡! Hngh♡! Hnguuuuhknguuuh♡!!”
Cum surged all the way to the tip of my glans. Even while writhing in orgasm, Seong Yua fought fiercely against the fear of pregnancy.
Thwack! Thwack! Thwack! Thwack! Thwack!
“Hngh♡! Ngh, ngh♡ Hrrghk…♡”
Seong Yua shoved hard against my shoulders. Whether from the climax or pure defiance, her legs flailed wildly. Her calves slapped repeatedly against the backs of my thighs. But she was already exhausted from all her earlier struggling. Even her weak, dull impacts carried her desperation, and it turned me on beyond belief.
Her body bucked violently from the force of her orgasm.
Thwack! Thwack! Thwack! Thwack! Thwack!
“Heuk, guk, uuguk♡ Ungbuup, buuk, geuk…♡”
Even though I held her down firmly, Seong Yua’s waist jerked and spasmed. Our stomachs slapped wetly together.
“Oh… fuck…!”
Her climaxing pussy chewed and milked my cock with ferocious contractions. The sheer eroticism of the situation combined with that tight, clingy cunt sent my urge to cum skyrocketing.
Thwack! Thwack! Thwack! Thwack! Thwack!
“Hrrng, uuk, buubup…♡”
At the moment of release, I crushed Seong Yua against me with all my strength.
“Hngbuuup, ngh♡! Nguk♡ Hnguuuuhhhng♡!!”
Spluuuurt—! Spljuuuuurt—!
I poured thick ropes of semen straight into Seong Yua’s womb. Her thrashing body radiated pure despair. It was an unbearably delicious side dish.
Splrrrt, spljuuuurt— Splurt, splurt—
The Stamina Booster skill, now strengthened, gave me incredible staying power. My ejaculation went on and on.
“Chuuup, uum… Chup, hrrup…”
Even while cumming, I sucked greedily on her tongue. The moment I started ejaculating, Seong Yua’s resistance simply… stopped. She could only writhe in the overwhelming pleasure that crashed over her.
“Haa… Haaa…!”
Her pussy, now resigned to the creampie, felt insanely tight and clingy…
Thrust. Thrust…
I began pistoning into her again as she lay limp beneath me.
“Haa, hngh… Mr. Kim Junyoung.”
“Yes.”
Her voice still trembled slightly, but the usual cold professionalism had returned.
“Now… please get off me. I need to go get a prescription for the morning-after pill, ugh, hngh♡ I have to get the morning-after pill.”
Thrust. Thrust. Thrust. Thrust…
“It’s the weekend, so the clinic will close early, ngh♡ Mr. Kim Junyoung?”
Thrust. Thrust. Thrust…
“M-Mr. Kim Junyoung, please stop…”
“They say it’s going to rain this evening. Stay the night.”
“What are you… I drove here. And it’s still a long time until evening, so if I leave now… hrrum?”
“Mmm, chuuup…”
I sealed her mouth with a deep kiss. She tried to resist again, but it didn’t last long. The way her hands trembled against my shoulders told me she had no strength left.
Thrust. Thrust. Thrust…
“Mmm, hrrngm… nngh…”
Resigned, Seong Yua began actively intertwining her tongue with mine. Her pussy walls seemed to squeeze me on purpose now, pressing and massaging my cock as if trying to milk out every last drop of semen so she could finally be free.
‘Oh really?’
Let’s see you try.
I sat up, grabbed my phone with one hand.
Would you like to level up the skill Stamina Booster?
‘Yes.’
Stamina Booster Lv.3 (Passive Skill)
Sufficient additional correction has been applied to sexual stamina.
I tossed the phone onto the bedside table and kissed Seong Yua again.
Thrust. Thrust. Thrust. Thrust…
“Mmm, hrrngm… Chuuup, hrrum…”
“Hrruk, chup…”
We shared an incredibly sticky, sloppy kiss, each trying to push the other toward climax. She wrapped her legs around mine and rubbed her breasts against my chest.
‘Fuck… This is seriously so goddamn hot…’
Refusing to lose to her powerful carnal assault, I slammed my hips even harder.
The wild Saturday finally passed, and Sunday arrived.
“Hss… My back hurts…”
I must have overdone it yesterday. Before acquiring the Stamina Booster skill, I could only cum about twice in one session. If I pushed myself, maybe three or four times, but I never felt like going beyond two. At Level 1, the skill raised that to five. Yesterday at Level 3, I had managed an incredible ten loads.
Unfortunately, even that wasn’t enough to keep Seong Yua in bed until nightfall.
‘We only met in the morning… It was never going to work from the start.’
Seong Yua’s growing anxiety had also made her work her hips desperately. Of course, after it was all over I told her I had gotten a vasectomy. I couldn’t tell her about the skill, after all. I added that it was reversible.
“Hss…”
Still, thrusting that many times had left a serious aftereffect. My lower back, shoulders, thighs, abs—every muscle ached. There wasn’t a single spot that didn’t hurt.
‘And of all days, something has to come up today…’
A disgusting sudden weekend overtime task. At least it was something I could do from home with my laptop, which was a relief. The problem was that the USB I had lent to Park Youngmin a while ago contained the files I needed.
With no other choice, I dragged my aching body and headed to Park Youngmin’s house.
‘Still… good thing he had it in his bag. Would’ve been a pain if I had to go all the way to the office.’
It was only a fifteen-minute drive. When I arrived at Park Youngmin’s place, I saw it was an apartment complex built just two years ago. Targeted at upper-middle-class families with money, the relatively new building exuded luxury.
I rang the doorbell.
Creak—
“Thanks for coming all this way.”
Park Youngmin, who had already heard the situation over the phone, opened the door. He looked at me with pity.
“Where’s your family?”
“Only my sister’s home, but she never comes out of her room. Come in and have a drink before you go.”
I stepped past the shoe rack and entered the house.
‘His sister…’
It was the hikikomori noona he occasionally mentioned in conversation.
‘With a place like this… having one unemployed person living here is nothing.’
It wasn’t exactly extravagant, but the interior gave off a clear sense of wealth and comfort. It felt exactly like the home of a successful middle-aged couple—not quite rich, but definitely well-off.
“This one’s expensive.”
He brought out some fancy chocolate as a snack. The funny part was that the drink he offered was beer. Mango-flavored beer. What a ridiculous combination.
“You said to have a drink. Alcohol in the morning?”
“This isn’t alcohol. It’s a beverage. There wasn’t anything else.”
We chatted while emptying the cans. A few minutes later, one can was nearly finished.
That was when—
Creak—
The door opened and someone shuffled into the kitchen. Park Youngmin, slightly buzzed, didn’t seem to notice.
‘Must be his sister.’
I started to stand up to greet her. But I couldn’t. I froze halfway up in an awkward half-crouch.
Because Park Youngmin’s sister was dressed in something incredibly revealing.
“Milk…”
She must have just woken up. Rubbing her sleepy eyes, she staggered forward.
‘Those dark circles are intense.’
Her eyes had a gloomy, decadent look to them.
‘Her clothes…’
She was wearing only panties and a thin tank top. Interestingly, the panties were men’s span boxers. The thin white tank top clung tightly to her body—and she was clearly braless. The tips of her modest C-cup breasts poked out prominently. The protruding area was too wide to be just her nipples.
‘Puffy areolas?’
The thin fabric made the color inside clearly visible. Pink. Both her nipples and areolas were a soft, pale pink.
‘Whoa… Holy shit, what an ass…’
Her pelvis was unbelievably wide. Even if I wrapped both arms around her, I probably couldn’t fully embrace that massive ass. Below it were thick, juicy thighs. The leg bands of the span boxers dug deeply into her soft flesh, perfectly highlighting their plump, elastic texture.
‘How does it get that glossy…? Did she put something on?’
She didn’t look fat at all. This was the kind of thigh every man couldn’t help but crave—voluptuous, bouncy, and firm.
‘Oh man… that…’
The center seam of her panties sank deep between her pussy lips, clearly outlining the thick, meaty shape of her labia. The camel toe was so vivid it was almost obscene.
‘This is insane.’
She would probably look less lewd completely naked. At this rate, just moving her hips in the air would let the seam rub against her clit enough to masturbate.
She hadn’t noticed me yet. With her eyes half-closed in drowsiness, she shuffled over to the refrigerator and opened the door.
“Uh, uh…!”
Only then did Park Youngmin spot his sister and panic at her outfit. It might be her usual at-home clothes, but I was here now.
“Mmm…”
She frowned while rummaging through the fridge, apparently unable to find what she wanted, then squatted down in a position that looked like she was peeing.
“Milk…”
Her posture made her ass stand out even more. It looked like her panties might burst at any moment.
‘Wow… I really want to grab that ass with both hands and spread it open…’
I had never seen an ass like that in my life. If I peeled those panties off and revealed her pure white skin, it would probably look like two full moons.
“Mmm…”
Unable to watch any longer, Park Youngmin finally spoke.
“……We’re out of milk.”
“Huh? We’re out? Damn… Is it already Sunday?”
She yawned and stood up. Then she turned toward Park Youngmin and—
“Next time you go grocery shopping, don’t buy just five cartons of milk, buy seven…”
Our eyes met.
“……Eh?”
“……”
Whoa. My breath caught in my throat. I wasn’t the type to get shy easily. But the sheer awkwardness she felt toward me froze the air itself. Thanks to that, even I started feeling awkward, which was rare.
Still, I should at least greet her.
“……Hi.”
Bang!
She fled back into her room.
“……”
“……”
The refrigerator door was still wide open.
“……”
“……”
An uncomfortably long silence passed. Park Youngmin must have been just as stunned.
“The USB?”
“…Ah, right. Follow me.”
The silence broke, and I finally brought up why I had come. I received the USB from him. He cleared his throat awkwardly and spoke.
“Ahem. My sister doesn’t usually wake up this early. That’s why I didn’t tell her we had a guest… Sorry you had to see her like that.”
“Huh? Oh, it’s fine. Doesn’t bother me.”
“That’s a relief.”
“…By the way, were those panties earlier yours?”
“…Yeah.”
“Why?”
“She insists on wearing men’s underwear for some reason. Says they’re more comfortable. But she gets mad if she wears Dad’s.”
After saying goodbye to Park Youngmin, I got in my car but couldn’t bring myself to drive away right away. That plump, delicious-looking ass kept flashing in my mind.
“……”
I put a cigarette in my mouth and lit it.
‘She really does look tasty… but no, that’s crossing the line.’
She was my friend’s family. There were women everywhere in the world. There was no need to mess with my friend’s sister.
‘…Still, it’s such a waste.’
My rational mind said no, but I couldn’t shake the lingering regret. After two cigarettes, I finally organized my thoughts.
“Let’s not do it.”
Even I had to laugh at myself. This wasn’t even something that should have required this much thought. It was obviously something I shouldn’t do.
‘Ever since I got the Modification App… I’ve become a bit…’
A bit strange. It felt like I was living completely ruled by lust.
‘I wasn’t this horny before.’
I turned the key and started the engine.
‘Friend’s family is off-limits. No matter how rotten I am, there are lines I should—’
Target: Kim Junyoung
Entering Modification Mode.
Editing the inner world of target Kim Junyoung.
“……?”
Ah.
‘Did I just doze off?’
How unusual. I had almost never fallen asleep in the driver’s seat before. I had been about to start the car, but the engine was already running.
“Ah!”
I must have dozed off with the engine on. I checked the fuel gauge. Fortunately, it had barely moved. It really had only been a short nap.
“Whew…”
As I started driving, my thoughts drifted.
‘Park Youngmin’s sister… Hmm… How should I modify her?’
She was a hikikomori with zero friends, a complete shut-in. She lived entirely off her parents’ money and seemed to feel guilty about it. But because of her social anxiety, she stayed locked inside the house.
‘I should make use of that background.’
That way, there would be less backlash and the suggestions would take root more deeply.
‘If I grab that ass and spread it open… what color would it be inside?’
My balls were already tingling with anticipation.