A Morning with My Sunbae (1)
I wriggled my fingers as if entranced. The soft flesh beneath my palm flattened and swelled again and again, yielding deliciously to my grip.
The feel of that chest, spilling slightly out between my fingers, was a different thrill entirely from touching it in the dark last night.
"Mmm... haahm..."
When my touch grew insistent, she frowned faintly in her sleep and stirred. Her long lashes trembled, then her big eyes slowly opened. Dazed and drunk on sleep, they fixed on me.
The moment I saw that utterly defenseless face, I couldn't help myself—I dipped my head.
Chuup—
"Mmph?!"
I pushed my tongue boldly between her parted lips. Startled awake and completely unguarded, Eugene's eyes went wide as saucers. She pounded my shoulders, clearly about to tell me off, but I ignored her and kissed her deeper.
If not now, when else would I get away with this?
There wasn't even the usual stale bitterness of morning breath. Only the vivid sensation of sweet, soft saliva tangling together.
Chup, chuuup.
After a few bouts of resistance, her hands went still. Reluctantly, she closed her eyes and accepted my tongue. Somewhere along the way, the hands that had been pushing me away had quietly settled, resting flat against my bare chest.
"Haah... chup."
The long kiss ended and our lips parted with a wet snap, like a thread of silk breaking.
"Haah... you're actually insane, doing this first thing in the morning."
Gulping for breath, Eugene scrubbed the back of her hand over her lips and snapped at me. Her cheeks wore a faint flush—whether from the ordeal of last night or from the kiss just now, I couldn't tell.
"What? It's a good-morning kiss."
"Good morning my ass."
With a pout, she yanked the blanket up to cover her bare chest.
"Don't get any ideas. Don't you dare start playing boyfriend. Yesterday was just... you looked so pathetic I threw you a pity fuck. That's all."
Her tone was sharp, but her eyes wouldn't meet mine; they kept wandering off into empty air. Anyone could see it was bravado to hide her embarrassment. Her defense mechanisms were visibly kicking into overdrive.
I tried to hold back a small laugh, then flinched at the rush of blood pooling below my stomach.
"......"
Her gaze, which had been sliding away, snagged on my crotch—half-hard and tenting conspicuously.
"You are... insufferable. A pervert junior bastard with nothing going for him but stamina."
"It's not like I'm doing it on purpose. It's a perfectly natural physiological response."
Wearing a look of mild disappointment, I crept closer.
"Hey, don't—"
She flinched and retreated to the corner of the bed. There was something uneasy, anxious in her eyes. After hemming and hawing for a moment, she finally reached out and pressed a firm finger against my forehead, holding me at bay.
"No. Yesterday was the alcohol, and it just... happened in the moment. But it's broad daylight right now. No means no. Go wash up and get dressed."
A firm refusal.
Even as her finger pushed me back, I nodded obediently.
Too bad, but nothing to be done about it. I couldn't force the issue with Kang Eugene when her defenses were locked down tight. And last night had left me with nothing to lose—quite the opposite, it had been nothing but gain—so backing off gracefully at this point wasn't a bad play.
Just as I got up to gather the underwear scattered across the floor—
Dding—!
With a cheerful chime, a translucent system window flickered into the corner of my vision.
The behavioral trait correction of student 'Kang Eugene' has made major progress!
Correction Goal: In place of the fatigue of managing her countless relationships, the student will focus all of her favor and attention on her junior, Lee Seonghyun.
Teacher, guide your student onto the right path with one final lesson!
Huh?
Still clutching my underwear, frozen half-crouched, I blinked.
Piled along the edge of the system window were dozens of small notification messages I'd failed to check last night.
[The student feels reassured by Lee Seonghyun's body heat.]
[The student feels an intense sense of belonging from Lee Seonghyun's clumsy caresses.]
...
Apparently, while I'd been panting like an animal carrying out last night's campaign, I had completely ignored these handy little notifications.
Just a little further, and... I can fully entrench a new behavioral trait?
Which meant I couldn't afford to back off now.
A little more effort, and that prideful, meddlesome senior of mine would pour all the energy she used to scatter across the male student body onto me alone.
Of course, judging by how she'd somehow stayed inexperienced even among all those men orbiting her, she probably wasn't about to fall head over heels for me overnight. Her bar was set impossibly high.
But one thing was certain: I could perfectly wall off those other bastards from making a move, and claim the vacancy for myself.
I tossed my underwear right back onto the floor. Then, slowly, I turned my head and looked at her—blanket pulled up to her chin, watching me warily.
"Hey. Why aren't you getting dressed?"
Only her eyes peeked out over the blanket as she snapped at me. I slid a knee back onto the bed.
The mattress dipped, and her shoulders flinched noticeably.
"Um, sunbae?"
"D-don't come any closer. I told you to stop messing around."
She tried to back away, dead serious, but the cold wall was already at her back. I closed in until I was right in front of her face and rested my hand gently on the back of the one gripping her bundle of blanket.
"It's because you're unsatisfied, isn't it?"
"Unsatisfied?! After the... the scene you made last night, you're saying I'm unsatisfied?"
"Well... I honestly don't know yet. You led me through the whole thing from start to finish yesterday, sunbae."
Liar. Lead, my ass—she'd lain there trembling like a leaf and moaning the entire time.
But I put on the most innocent, wistful expression I could manage.
"You already took pity on your poor junior and taught him once. Couldn't you go just a little further? If we cut it off right here... honestly, that's just cruel."
At my shameless whining, her face went tomato-red in an instant. Her mouth fell open in sheer disbelief.
"Hey! What are you, a dog in heat? How can one night not be enough! What am I, your personal sex-ed instructor?"
"Could you be?"
"Don't talk nonsense! Yesterday was just... the mood, okay? It couldn't be helped!"
She shrieked and tried to shake off my hand. But I caught her wrist—gently, firmly—and didn't let go.
"Sunbae."
I dropped my voice low, mixed in a touch of pathos, and looked her dead in the eye.
"Then... we don't have to date or anything."
"Huh...?"
"Just sometimes. Very, very occasionally... couldn't we just do this?"
Her eyes whirled wildly with nowhere to land. Her lips trembled.
"Wh... is that... is that how you see me?"
The words came out spiked, pride wounded. A natural reaction. However much she ran her aquarium, underneath she was a spineless virgin. Getting a friends-with-benefits offer out of nowhere from her own junior would scramble anyone's brain.
But before she could blow up and throw me out, I hastily tacked on one more clause.
"No, no, that's not what I mean! I know my place, really."
I gave a bitter smile and lowered my head.
"You've got so many people to look after, sunbae, and those returning-student guys are always blowing up your phone. And besides... from what I saw yesterday, you've got a ton of experience."
"......!"
"Someone like me—a clueless virgin junior bastard—I know I don't really satisfy you. You wouldn't need to seriously date someone like me anyway."
I heard her breath catch.
"It's just... I like you too much, sunbae. I know I'm a nuisance and a burden to you, but you're the one who taught me my first time... I'd be fine just being your fuck buddy, so please—could you please not throw me away?"
Eugene could only open and close her mouth, struck dumb.
Even to me, her expression looked incredibly conflicted.
Partly pleased, partly indignant.
I didn't wait for an answer.
Before she could open her mouth to make excuses or refuse, I swept the bundle of blanket she'd been clutching clean off her body.
"H-hey... wait!"
Under the dazzling morning light, Eugene's luscious nakedness was laid completely bare.
It was on another level from what I'd seen under the dim lights last night. Hair damp with sweat and slightly tangled, the nape of her neck flushed red.
And above all, that enormous chest—spilling heavily out on either side of her from the way she lay, trembling precariously with every ragged breath—filled my entire field of vision.
"Wait, Seonghyun... it's the middle of the day, hah...!"
Flustered, she scrambled to cover herself with both arms, but I was faster—I pressed her down under my weight.
My chest crushed against the soft swell of her breasts. At the sticky feel of skin sliding against skin, my cock—irritated and half-hard since moments ago—tapped against the smooth inside of her thigh.
"Hahp!"
I immediately dipped my head and swallowed her lips.
Nothing like the clumsy kiss of last night. To leave her no room to protest, I drove my tongue in deep and licked mercilessly over every sensitive membrane in her mouth. The faint scent of soap and that distinctive sweet body scent of hers hit my nose hard enough to numb it.
"Mmph...! Mmph... Seong, your tongue... chup."
Her resistance was feeble.
The hands that had been pushing at my shoulders soon lost their purpose and began clumsily stroking my lower back.
Whether it was the effect of the correction, or the pleasure she'd tasted for the first time last night still clinging to her body, her tongue began cautiously twining around mine.
Chup, chuuuup—chlup.
The wet sound of mingling saliva rang out unusually loud.
When our lips parted, she was gulping down rough breaths, avoiding my eyes. Her ears were scarlet all the way to the tips with shame.
"Y-you've really... picked up terrible habits..."
She muttered in a shrinking voice. That petty pride of hers, refusing to give up the cool, mature senior act, was so adorable I thought I might lose my mind.
"Then I guess you'll just have to tame me, sunbae."
Grinning slyly, I cupped her breast with one hand.
Volume far too great for a single palm to contain. When I kneaded down on the soft flesh squeezing out between my fingers, a suppressed moan burst from her lips.
"Ah, hah! God... hey, don't touch..."
"Why not? You loved it plenty yesterday."
"When did I—aaah!"
I let my hand slide down and flicked her puffy nipple with my thumb and forefinger. Whether it was last night's stimulation or she was just naturally sensitive, her nipples were already stiff and rigid at the slightest brush.
"Huaaang...! Hey, you... haah..."
Her hips bucked upward reflexively.
Without taking my eyes off her chest, I reached slowly downward, fumbled at the nightstand near the headboard, and found the box of condoms left over from yesterday.
"Uh... what are you..."
At the crinkle of foil, she flinched and opened her eyes. When she confirmed the square wrapper in my hand, lit by the morning sun, her pupils trembled.
"I'm still clumsy at this. Could you put it on for me, like you did yesterday?"
I held the condom out in front of her face with a look of complete innocence.
At the memory of last evening—of her puffing herself up with fake experience and then fumbling her way through putting one on me—I could see her face flare hot red. But she couldn't bring herself to refuse.
"Haah... seriously, I'm losing my mind..."
She bit her lip hard and accepted the condom with trembling hands. Her fingers tearing at the wrapper were hopelessly clumsy.
I lifted my hips slightly and thrust my rigid erection into her line of sight. A thick pillar, veins standing out even more starkly under the morning light.
Eugene swallowed hard, then carefully set the rubber ring on the tip of my glans with trembling fingers.
"Ah, nh..."
The moment her cool fingertips touched my glans, a jolt shot up my spine. Determined not to fumble like yesterday, she frowned deeply, poked the tip of her tongue out in concentration, and rolled the condom down with total focus.
"Phew... done."
Having pushed the rubber all the way down, she wiped the sweat from her brow and let out a small sigh, wearing the expression of someone who had just pulled off some monumental undertaking.
"Thanks, sunbae. There's really no one like you."
I smiled smoothly and slid a knee between her thighs. Whether from the traces of last night, or the kissing and caressing from moments ago, her secret place was already soaked slick with sticky arousal.
Embarrassed, she covered her face with both hands and sharply turned her head away.
"Ugh... I don't know. Do whatever you want... just get it over with..."
A resigned permission. At the same time, the system window floating in the air blazed brilliantly gold.
An electric thrill swept through my entire body.
I gripped her waist firmly with both hands. That slender waist filled my grasp exactly.
"Going in, sunbae."
"Ah, aaah... hah!"
Smoothly, my thick pillar drove into the hot, narrow passage within.
Chubuk— chigeok!
Whether thanks to the one round that had trained her last night, or simply because she was wet enough, my cock buried itself deep inside in a single thrust, producing a lewd, obscene friction.
"Haaang! H-holy... ah! Seonghyun, from the start, hnh, that spot...! Hahk!"
Eugene clutched my shoulders and let out a cry like a scream. The hands covering her face flailed in the air before clinging to my back.
Naturally, I had to raise my upper body to move my hips—and so she ended up wrapped around me as I did.

Her pale body swayed helplessly to the rhythm of my hips.
Above all, the overwhelming tide of those huge breasts, heaving roughly up and down, offering glimpses of red nipples, made it impossible to look away. The furrow between her brows, her eyes gone slack and melting with pleasure, the beads of sweat clinging to the bridge of her nose.
Observing every detail of that scene with my own eyes as our bodies joined was more stimulating than any porn I had ever seen.
"Aah! H-ahh! There, hnh, d-don't scrape... hah!"
And on top of it, her inner walls were biting down on my glans and refusing to let go.
Every movement dragged the ridged flesh raw against me, and it felt like the edge would crash over me at any moment.
"Sunbae... Eugene, sunbae."
"Haang! Wh-what, hah!"
"You promised to teach me. No taking it back. Got it?"
I grinned wickedly and slammed my hips up harder, rougher.
Chubeok! Chigeok! Thud!
"I got it, I got it, hah! Slow down, huaang! Gently, ah—!"
When I drove into her as if to force the answer out, she wrapped her legs around my waist, begging in a voice soaked with pleasure. Telling me to be gentle with her mouth while her body pulled me in tighter—she already looked, to me, like a beast fully tamed.