Throat-Pussy (1)
After deciding to live with Ai, one rule was established between us. All the masturbation I used to do three times a day would now be entrusted entirely to her. In short, my younger sister had volunteered herself as an onahole. Everything else in our daily life was left to our usual discretion.
"Oppa? Oh, you were working part-time on weekdays, right? You remember?"
I was being forced back into a daily routine I had no memory of. Of course, since today was Sunday, there was still one day left before the weekday began. Just like yesterday—the first day of living together with my younger sister—I could have surrendered myself completely to pleasure.
Chuuup, chup— Heup, chyop, chyuup, lick—
"Uup, keck, kehek—, heek, eek..."
That was why I was currently ramming my fully erect cock straight into my sister's throat-pussy, shaking my hips like a rutting dog. It wasn't because I had stopped thinking. Maybe I was pressing too hard against her throat. Ai tapped my thighs with her slender hands—not hard, but clearly a sign of refusal. I deliberately took my time, rubbing my shaft against the inner mucous membranes of her mouth before slowly pulling out, as if trying to remove the foreign object obstructing her breathing.
When my cock, coated in sticky saliva like honey, slipped out past her wet lips, a light pop echoed. Ai coughed and gasped, savoring the brief moment of free breath.
"It's thick... Oppa, your precum's leaking every day...♡"
...After finishing her "naming," Ai wiped the semen covering her body and face with her hand and licked it off as if nothing had happened, then closed the door and left the room. I could only stare blankly at my penis, which had shriveled in terror. Even without understanding the situation I was in, what I had to do was clear. I needed to stay on Ai's good side. I had to fulfill the role of the older brother she wanted. I couldn't repeat the same mistake as today. I could never again show her the suspicion I harbored, or the fear a herbivore shows before a lion. I was afraid because I didn't know what would happen to me. Fortunately, after Ai left the room, the rest of the day passed without incident. Even when I couldn't hold it anymore and left my room to use the bathroom, the house was as quiet as I remembered, as if no one was there. Ai's door, directly across from mine, remained firmly shut. I was tempted to press my ear against it and listen, but the thought of experiencing that morning's terror again so soon made it impossible.
The fridge in the living room was stocked with convenience store lunches and triangle kimbap. I grabbed whatever I could and shoved it into my mouth to fill my starving stomach. I had no idea how long it had been since my last meal. Apparently, quite a bit of time had passed during the blank in my memory. After finishing my meal, I went back to my room and fell into a deep sleep.
The next morning, I woke up earlier than usual. There was no sign of Ai anywhere in the room, the one who claimed she woke me every morning. Out of habit, I left my room and headed for the living room, where I saw something completely unexpected. Ai was watching TV. She was laughing naturally, as if she were watching some silly variety show like other girls her age. I turned my gaze to the screen she was looking at. It was blank. The TV was off. Ai was staring at the empty screen, mimicking the behavior of someone her age. It looked like she was imitating something without understanding the principle behind it, simply because she wanted to resemble it. The sight was chilling. I scolded myself for briefly entertaining the comfortable thought that I might be able to spend ordinary days with "that thing" without incident.
"Huh? Oppa, you're up early today."
Ai jumped up from the sofa the moment she saw me and came running over. She didn't seem to realize that what she had just been doing was clearly abnormal. So there was no need for me to point it out either.
"Yeah... I must've gone to bed early yesterday. Did you sleep well?"
I greeted my younger sister, who was looking at me with an innocent smile and a giggle, while forcing a smile onto my own face.
"You must've been hungry! I saw you ate everything I left for you yesterday~"
Ai pointed to the trash I'd left behind in the kitchen after finishing my meal.
"Haha... I woke up in the middle of the night and got hungry... Have you eaten?"
I asked as casually as possible. Pretending to be a close sibling felt off, especially since Ai hadn't made any contact since yesterday morning. I couldn't figure out what she was planning.
"Mm-hmm, I ate. More importantly, Oppa."
"Yeah?"
Ai gave me her usual strangely seductive smile, then formed a circle with her index finger and thumb, held it up to her mouth, and stuck out her tongue.
"You haven't cum yet today, right? Don't you want to jerk off...?"
The sudden seduction was completely out of nowhere. There was no context. It was such an absurd suggestion that it almost seemed like she was just teasing me. Even so, my lower body, still full of energy after just waking up, reacted. The moment Ai wiggled her red tongue through the hole made by her fingers, my cock stood straight up, pushing against my shorts until the tip peeked out slightly. It was almost a spinal reflex. I clearly saw her eyes flick downward. She must have noticed. There was no way a girl who acted this lewd wouldn't know the effect her seduction had. I immediately reached down and grabbed my cock through my pants. The shaft that had been standing straight twitched at the unexpected sensation. "Oppa, you're so honest~ Where should I help you shoot all that morning precum?♡" Before I knew it, she had sidled right up next to me and was whispering in my ear. Ai came so close that I could feel her breath on my earlobe, almost like she was about to bite it. There was no trace of a shower, yet a sweet conditioner scent drifted from her soft hair, as if she'd just washed it. Too many sweeteners to arouse lust. This girl. My entire body, which had cooled from the morning chill, heated up rapidly. Resistance was meaningless. That was the lesson I'd learned yesterday. So the only choice left was to indulge in pleasure. It wasn't an escape, just the next best option. Besides, hadn't we made that promise yesterday? All masturbation in this house would be handled by Ai, from start to finish, without exception. The decadent desire from last time burst out again, prying open my shell just like my cock. It must have been an impulsive moment. I suddenly grabbed her sweet-smelling hair and roughly rubbed it against my lower body, still in shorts. The tip of my exposed cock brushed lightly against her hair. Even without direct contact, it was already twitching with excitement, a translucent bead forming at the tip. Ai looked delighted that the situation she'd hoped for had arrived. She half-lidded her eyes, full of lust like yesterday, and looked up at my face.
"Mm~? Where do you want it? Are you satisfied just cumming on your own sister's face again? Hee♡"
She completely surrendered, relaxing her neck and letting me move her however I wanted. The thrill of her much slimmer body—compared to mine—being moved entirely according to my desires while only responding to them. It really was the best.
"Suck it. Right now."
Before I knew it, my voice had taken on the same commanding tone as yesterday. I seemed intoxicated by the sensation of her small body devoting itself completely to me. With one hand, I pulled down my shorts and shamelessly rubbed my exposed cock against her delicate face. I hadn't showered since yesterday. After cumming twice, I'd only relied on Ai to clean me up and done no further aftercare. So there was no doubt that my cock right now reeked of the night-flower scent that dried semen gives off. But Ai accepted it willingly, swallowing her saliva and rubbing her face against the precum-covered shaft as if it were the finest delicacy.
"Open your mouth."
The moment my words ended, Ai's moist lips parted wide. Her light pink lips glistened as if she'd just applied lipstick. Without hesitation, I thrust my cock roughly all the way to the back of her throat. Of course, while still gripping her hair. I moved her limp head back and forth like I was using an onahole. Chubup, chubup, chubup, chubup, chubup— Ai carefully sucked my cock, which filled her tight oral cavity without any space, making sure her teeth didn't touch it, as if she were afraid it would melt like ice cream. She didn't stop there. While the pleasure from her mouth alone was enough to make me cum, when I thrust deep enough to poke her throat, my legs trembled from pleasure on a completely different level. Ai wasn't just offering her throat freely like an onahole—she also kept moving her tongue without rest, lick—lick—, doing her best to keep my cock slick inside her mouth so the piston could continue without obstruction. Her once-confident face was now covered in tears and sweat from being unable to breathe properly because of the cock moving back and forth. But the flush on her cheeks and the way she moved her tongue made it clear this wasn't a sign of refusal. I used her mouth and throat without reservation. Occasionally, I didn't forget to tap her head with the hand gripping her hair, as if praising her. Each time, Ai let out a rough breath in delight while diligently working her mouth around my cock, exciting me even more. I could feel the urge to cum boiling up from my inner thighs. But it was too soon. Way too soon. I had no intention of stopping here. Of course not. The sun hadn't even risen yet. The morning was long. Very long. I slowly pulled my cock, which had been clinging stickily inside Ai's throat like it was glued there, out of her mouth. Slowly, fully savoring the sensation of her inner mouth sliding along the veiny shaft. Slowly, slowly. My cock, swollen so large it was hard to believe it had fit in her small mouth, emerged glistening with saliva. Precum and spit mixed together, dripping onto the living room floor. "Gek, heek, ahee...ehe..." Ai let out small, almost gagging moans as my cock was pulled out. But the expression on her face as she looked at my still-erect cock in front of her wasn't one of pain. Ecstasy drenched in pleasure covered her entire face, streaked with tears and saliva. It was a visually satisfying sight, but something was missing.
"Ai, aren't you hot?"
"E....?"
Ai still seemed preoccupied with wiping away the fluids leaking uncontrollably from her mouth.
"You must be hot. Want to take it off and do it?"
In that moment, I clearly saw the flush on Ai's face spread all the way to her ears, turning them bright red.
"Take off your top and suck it. Right now."