Common Sense Alteration and Girls' Talk

The reply was fast.

Since he couldn't tell her that he couldn't let his sister catch them being affectionate.

Even though the 'read' receipt popped up, the reply was slow. No, she usually replied instantly, so why now! It was making him anxious.

Whew, looks like she got the message. As the tension drained from his body, drowsiness washed over him once more. Getting up from the window and heading back to his seat, his eyes suddenly drifted to the classroom door. It felt as if Su-ah might walk in at any moment, greeting him with a bright smile. *What is this, some kind of tragic scene where I'm mourning a dead friend?* Chuckling to himself, he sat down and slumped over his desk. Being alone in this quiet space was just letting his mind wander. *Might as well get some sleep.*

How much time had passed since he drifted off? He woke up to the noisy, bustling sounds of a classroom filled with students. A voice he really didn't want to hear was mixed in nearby. He shouldn't have looked back. Su-ah was waving at him silently with her usual innocent smile. It was so hypocritical it made him want to punch her. He wanted to tell her to get the hell back to her seat, but with the other girls around, it was hard to speak up. Yet, he couldn't just leave either; he felt like he shouldn't miss the "girls' talk" of the classmates gathered around Su-ah. Ignoring Su-ah, he laid his head back down on the desk but kept his ears wide open.

"Whoa... I thought you said he turned into a total pig and that you absolutely detested him..."

"Ugh, what else was I supposed to do? I was craving some dick so bad, but texting my ex felt wrong. So I just called him over to my place. But get this—the bastard didn't even wash. His hair was all greasy, and he walked in grumbling about why I called him while scratching his ass inside his pants."

"Pfft, haha! Well, he's your childhood friend, so that's bound to happen."

"Exactly. I never saw him as a man anyway, so I get it, but it pissed me off so much. All I could think was, I'm going to fuck this bastard until his dick breaks today and teach him that I'm a woman."

A weekend experienced by a girl under the Common Sense Alteration. Since Ha-woon didn't know exactly how or to what extent common sense had shifted, he needed to understand how things were playing out. If only to resolve the situation unfolding before him.

"So I pulled his pants down right away, and the smell, holy ‍‍‌‌⁠​​⁠‌​​‍​​‍​‌​⁠‍‌‍⁠⁠‌⁠‌‍‌‍‌‌‌‍⁠​‌​‌​‌‍‌‌‌⁠‍​​‌‍⁠‌‌⁠⁠shit... Ah, fuck, just thinking about it gets me so wet. That raw dick musk hit my nose so hard. I never knew unwashed cock could smell that good. My mouth moved before my pussy could even react. I completely lost my mind and just started sucking him off."

"Is it really that good?"

"I'm telling you! It's literally an aphrodisiac."

"Maybe I should ask my boyfriend not to wash his dick for a few days."

"How was his size? Was it big?"

"It's thicker than my ex's, but..."

The conversation suddenly cut off. Even though he wasn't looking at them, he could feel exactly where their eyes were directed. His back prickled with heat.

"Well... it's not like finding a premium dick-spoon is easy... but I was pretty satisfied."

"But you said he didn't see you as a woman. Did he get hard?"

"Hehehe, rock hard. The moment my pussy clamped down on his dick, he had no choice but to acknowledge me as a woman. At first, he panicked and tried to pull away, asking what I was doing. But when I called him out on trying to run away with a fully erect dick, he just lay there and let me have my way with him."

*He fell victim to the Common Sense Alteration.* Hearing this, it was clear the guy had initially gotten hard out of pure male instinct, but after hearing her words, his brainwashed mind must have rationalized it as: *Ah, I must have feelings for her.*

"But since he was ‍‍‌‌⁠​​⁠‌​​‍​​‍​‌​⁠‍‌‍⁠⁠‌⁠‌‍‌‍‌‌‌‍⁠​‌​‌​‌‍‌‌‌⁠‍​​‌‍⁠‌‌⁠⁠a virgin, he blew his load pretty fast."

"That's the charm of a virgin. They shoot a quick load, but then they get hard again right away. And the second round lasts much longer."

"Sounds like you've devoured a few virgins yourself?"

"Ahem, my current boyfriend and I ‍‍‌‌⁠​​⁠‌​​‍​​‍​‌​⁠‍‌‍⁠⁠‌⁠‌‍‌‍‌‌‌‍⁠​‌​‌​‌‍‌‌‌⁠‍​​‌‍⁠‌‌⁠⁠took each other's virginity, thank you very much."

"Kyaaa... pure love... ♡"

"Oh... no wonder. My ex was a secondhand dick, so I didn't know. Anyway, I made him blow one in my mouth, and since he got hard again right away, I pinned him down and was riding him like crazy when my parents walked in."

*Oh god... what a disaster...*

"At first, they screamed at me, asking what the hell I was doing, probably thinking I was raping him."

*It probably wasn't just because they thought it was rape...*

"So I told them it was consensual, and pointed out how hard his dick was. They totally understood after that."

*It seems common sense shifts incredibly easily with just a few words. It's like a malignant plague. Meanwhile, the actual common sense I try to speak of doesn't work at all.*

"But you know what's hilarious? My parents have been pretty distant lately, right? But I guess they got stimulated by seeing us, because that evening, my mom started sucking my dad's dick right there in the living room, and then they went into their bedroom together."

*Ugh... thank god my dad isn't around. I would never want to see something like that.*

"Ooh..."

"What do you mean 'ooh'? It's so embarrassing at their age."

*Hmm... embarrassing? If you compare it to the old common sense of catching your parents kissing, I suppose a daughter might feel that way.*

"But honestly, it was a revelation. I didn't know my dad's dick was that big. For the first time since I was a toddler, it actually made me think I want to marry someone like my dad."

*So she didn't feel actual lust for him. I guess even with the altered common sense, incest still isn't normal, considering Hayeon's blackmail.*

"My parents aren't on great terms either. Maybe I should put on a sex show with my boyfriend in front of them."

"Your parents too? Ours don't hate each other, but they sleep in separate rooms because they say it's more comfortable."

"Sigh... it's a serious problem. They say there are so many sexless couples in our country. No wonder the birth rate is in the gutter. What are the kids supposed to learn?"

*Hey, hey. Just a while ago, you guys were complaining about how childbirth ruins a woman's career...*

"Exactly. Even we were pretty negative about having kids until recently, right? It's all because of bad home education."

*At least they're self-aware. Though I'm not sure if 'home education' is the right culprit. Come to think of it, both Juran and Su-ah wanted to have my babies. Maybe it wasn't because they loved me so much, but rather a side effect of the Common Sense Alteration. I'm glad I kept my ears open.*

"Alright. I'm going to be a dutiful daughter. It's a bit embarrassing, but I'll invite my boyfriend over and arrange things so my parents catch us fucking. That'll spark things up between them."

"You might end up with a younger sibling that way."

"Then I'd be doing my patriotic duty too."

"Should I stop taking my birth control pills too?"

"Hey, don't go that far. Who knows if you'll break up with your current boyfriend."

"A woman's the one having the baby, so what if the father is a bit different? Surely people can understand that."

That was the first thing Su-ah, who had been listening quietly, said. *Wait... is this kind of thing common sense now?*

"Whoa... that's insane."

"I thought she was the quiet type, but her brain is totally rotten."

*Fortunately, it wasn't.*

"Wow... you guys are mean. As if you don't all secretly wish for that."

"Uh-uh, harems only belong in our fantasies."

"Yeah, seriously. There's a guy right here."

"Ah, right. Ha-woon is here... Sorry, guys. I shouldn't have brought that up."

*Looking at her attitude, she definitely said that on purpose so I would hear.*

"Guess I'm the only pervert here."

"Yep. Ji Su-ah is a pervert."

"A total slutty rake."

"A cock-crazy bitch."

"Oops, you caught me. Hehe."

While they casually traded remarks that would normally be deeply humiliating for a girl, a shout ‍‍‌‌⁠​​⁠‌​​‍​​‍​‌​⁠‍‌‍⁠⁠‌⁠‌‍‌‍‌‌‌‍⁠​‌​‌​‌‍‌‌‌⁠‍​​‌‍⁠‌‌⁠⁠like a sentry's warning echoed from the front door of the classroom.

"Hey, teacher's coming!"

It seemed morning assembly had finally arrived. Only after Su-ah left and the original owner of the seat sat down did Ha-woon lift his upper body.

"Alright, we'll start morning assembly after listening to an announcement from the student council."

No sooner had the homeroom teacher opened the door and spoken than the PA system crackled to life.

Slidddde... Just then, as if she had been waiting for this exact moment, Juran slid open the back door, strode right up to him, and grabbed his wrist.

"A-Ah... wait, Juran... it's morning assembly..."

"Kwon Juran! Just because your restraining order is lifted doesn't mean you can act like this during assembly!"

Ha-woon's hesitant voice was drowned out by the homeroom teacher's scolding. Juran, completely unfazed, shot a fierce glare back at the teacher.

"Should a teacher really be looking at a student with such slimy, lustful eyes?"

"Ugh..."

Having silenced the speechless teacher, she declared:

"I'm taking Ha-woon with me."

She dragged the bewildered Ha-woon out of the classroom. Passing through the quiet hallway, the place she dragged him to was the female restroom.

"Ju-Juran... this is..."

"Haa... fuck... I've been holding back so damn much."

Without a word, she pulled him into a tight embrace, rubbing her crotch against his dick, and violently crashed her lips onto his as if refusing to let him say another word.

Thud. She shoved him into a toilet stall and locked the door.

"Pff... what are you doing..."

"You said no doing dirty things in front of people. So I'm doing it where nobody can see us."

Her eyes burning with raw lust, she devoured his mouth again, kissing him with violent hunger.

Sluuurp... chup, chuu ♡ slurp, sluuuup—♡ chup... chup, sluuurp—♡

*Ah, ah... I should have just told her not to touch me at school at all. Because of my own dirty desire to secretly touch her breasts, the message I sent leaving some wiggle room ended up causing this...*

Her hands fumbled down to his crotch, unbuckling his belt. The button was undone, and the zipper slid down.

"Phew... your cock is already like this... ♡ Sluuurp—♡"

The hand that had been caressing him over his underwear pulled down the waistband, making direct contact with his rock-hard, throbbing shaft.

"Ha-woon, chup... take off my panties... chup, slurp—♡ Ha-woon, you do it."

"Seriously... you're going to get it once we're done."

"Yeah, I'll take my punishment, so hurry... my panties, quick... ♡"

Since there was no escaping this beast in heat anyway, it was better to satisfy the lust she'd pent up all day before trying to discipline her.

The moment he pulled Juran's panties down, she immediately began rubbing her already soaking wet pussy against his hard pillar of flesh, as if she had been dying for it.

Under the sheer weight of Juran's aggressive assault, Ha-woon lost his balance and slumped back onto the closed toilet lid.

Squuuelch... squish, squelch, wet slaps... The sloppy, wet sounds of clashing flesh filled the quiet restroom.

"Haa... fuck... ♡ This is it... Do you know how lonely my pussy was? Huh? Do you have any idea how much I starved for your cock, Ha-woon... ♡"

Soon, Juran's voice, thick with ecstatic moans, joined the wet symphony.

"Ngh, haa..."

As he let out a ragged breath, feeling the slippery, wet warmth stretching around his shaft,

"Man, morning assembly getting canceled like this is awesome."

"The teacher looked so flustered, it was almost pitiful."

The girls from his class walked into the restroom, chatting away.