Let Me Demonstrate the Basic Warm-Up
"Oh… yes… if that's what you'd like, Professor…. I'll make sure to teach you… properly."
The moment the department teaching assistant finished her shy reply, I seized her waist and pulled her upright, as if I'd been waiting for exactly that.
Then I rose from the sofa myself and unzipped my trousers.
My junior, long suppressed and cramped inside those suffocating slacks, sprang out into the open air, stiff and furious.
Honestly, with her flaunting a chest that enormous and luring me so shamelessly, how was I supposed to hold back?
Not taking her at a moment like this would practically count as bad manners.
She gazed at my massive pillar with glazed, entranced eyes, swallowed hard, and sank gracefully to her knees on the research office floor.
"Then allow me to begin by demonstrating the basic warm-up for the overtime class."
"Yes, please. Assistant Kim."
With my permission, she slowly parted her lips and drew closer to my cock.
Then, with those crimson lips, she began by tenderly enveloping the very tip of my glans.
"Mmn… chuup, chup…."
"Ah…."
"Is this all right…? Chuuub…."
When I nodded, she began swallowing my cock deep into her throat.
Wow. This is insane.
I could feel her warm, soft tongue wrapping around my most sensitive spots without leaving a single gap uncovered.
If the bathhouse attendant's technique from last time had been that of a hard-edged, full-contact professional who wrung the soul right out of you, then the fellatio Kim Minjeong was performing now was the very model of textbook, gentle service — as if she were demonstrating proper form for students with an instructional aid.
Every time that hot tongue glided softly up the length of my shaft, a tingling wave of pleasure rippled up through my hips.
And when she flicked her tongue in little taps around the glans and cleaned deep inside, goosebumps raced across my entire body.
*Wow. Being serviced like this by the department TA, right in the middle of the research office? Now this is what being a Saul University professor is all about.*
Of course, I owed it all to this world where the anomaly had twisted common sense beyond all recognition — but hey, if I get to enjoy it, that's a win, isn't it?
More than anything, my eyes and ears were having quite the feast.
She knelt on the floor, face buried between my legs, head bobbing back and forth.
With every motion of her head, the enormous breasts of her now topless body swayed heavily, surrendering to gravity.
The piercing rings hanging from her nipples jingled and clinked against each other, the sound echoing strangely through the silent research office.
"Hoo… chup, shlup…."
Layered on top of that came the lewd, wet sounds of her sucking me off, and the whole scene rivaled an opera performance in its splendor.
To think I was experiencing firsthand something I'd only ever seen in porn.
It was a moment that felt genuinely moving — and at the same time, utterly surreal.
After receiving her devoted oral ministrations for a good long while, Assistant Kim Minjeong slid my shaft from her mouth, apparently to catch her breath.
My cock, which until moments ago had been leaking only occasional beads of precum, was now thoroughly drenched and glistening with her saliva.
Fuck, seriously. I want to come so bad.
A heavy heat had piled up in my gut, past the point where holding back was easy.
My head was filled with the urge to grab her hair, force my cock down her throat, and dump my load straight into her mouth — but I forced myself to resist.
I was a professor, after all.
Blowing my load at the first simple service from the department TA would hardly befit a professor's dignity.
"Very good. I'd say that's more than enough warm-up, Assistant Kim."
"I-is that so…. Were you… satisfied?"
"Yes, very satisfied. Thank you sincerely."
"Hahh…. N-no, the thanks is mine. I should be grateful you gave me such a good evaluation."
"By the way, this 'overtime class' business — can we really do anything without limits, like you explained earlier?"
At my question, she nodded while catching her breath.
"Yes…. Any educational activity sanctioned by the department may be performed freely."
"I see."
"That said, some activities — outdoor exposure or group practicals, for instance — must be reported to the department office in advance under relevant regulations. As long as you follow that rule, you're all set."
"Hmm…. Understood."
*Outdoor exposure practicals? Group practicals? Just the names are enough to make my head spin.*
I nodded along with a carefully composed face, but inside, my heart was pounding like a drum.
Seriously? The world actually issues permits for every conceivable act of perversion?
Which meant that using my professor title, I could properly discipline that insolent bitch Baek Nahee, couldn't I?
Cheering inwardly, I gripped Kim Minjeong's shoulders and pulled her to her feet.
Then, still holding her, I tipped her back onto the huge, plush leather sofa at the side of the office.
"Aahh…!"
"That concludes the basic warm-up, so shall we move on to the main instruction?"
"Y-yes…. If it's what you want, Professor, feel free to proceed as much as you like."
"Excellent. Then…."
If the warm-up was fellatio, then the main instruction had to be the real thing.
Kim Minjeong seemed to have been prepared for this as well; she offered no resistance at all and simply lay back on the sofa, following my hands.
As she was pressed down onto it, her narrow H-line skirt rolled up precariously over her hips.
Below the black skirt, stocking-wrapped thighs and a pair of black lace panties already soaked thoroughly damp with her arousal filled my view, laid utterly bare.
As expected of a TA at a prestigious university — she comes fully prepared.
I pushed her panties aside and lined up my rigid pillar at her entrance.
But right at that moment—
A single thought flashed through my mind, and I froze mid-motion as if doused with cold water.
*Ah, shit. Hold on. Am I really just supposed to slam it in raw like this?*
What if, swept up in the moment, I buried it in bare and ended up knocking her flat with an accidental pregnancy down the line?
No matter how warped this world's common sense had become, surely the natural order of conception hadn't been rewritten along with everything else.
However mind-meltingly arousing the situation, some extremely practical matters still demanded attention.
So before pushing inside, I asked Assistant Kim Minjeong in my sternest professorial voice.
"Before we proceed in earnest — shouldn't we make sure to use proper instructional equipment?"
"Instructional… equipment, Professor?"
"Are condoms prepared, by any chance? From what I saw earlier, I don't believe the professor's office keeps any on hand."
I had in fact rummaged through the place more than once — not a single condom anywhere.
Granted, it would be odd for condoms to be stocked in a professor's office — except this was the department dedicated to training beauties of service in an altered-common-sense world.
Shouldn't condoms be the one thing that was absolutely, guaranteed present?
Kim Minjeong, who had been waiting this whole time for my insertion, blinked in momentary confusion — then burst into a small, effortless laugh.
"Goodness, Professor. How considerate of you. But don't worry — this is the Special Devotion Talent Department, after all."
"Pardon? What does that have to do with…."
"Students belonging to our department are required, upon enrollment, to receive a completely flawless contraception procedure at the university medical center."
I'm sorry — a what procedure?
The words out of Kim Minjeong's mouth were nothing short of a fresh shock to my system.
Caught so off guard that I shed my composed professor mask entirely, I could only stammer.
"C-c-contraception procedure?"
"Yes. Once you've had the procedure, you can finish inside as freely and as often as you like with zero risk of pregnancy. I've had it done too, naturally."
"What about people who can't receive the procedure?"
"For the small number of students whose constitution prevents the procedure, the department provides a special contraceptive pill every single morning. So there's truly no need to worry."
Wrapping her arms around my neck, she added the explanation in a soft, sweet, endlessly helpful voice.
"Later on, try looking up the student records through your professor-only intranet. Next to every student's profile, their contraception status will show up clearly marked O or X. And the X students take their pills without fail every day, so you can rest easy there too."
"Ah…."
By the time she finished, I was reeling as if I'd taken a sledgehammer to the head.
No condoms.
No worries about pregnancy, STDs, or any other practical consequences, ever.
A perfect free-pass system that let me finish deep inside, raw, whenever and wherever I pleased.
*Wow. This really is a batshit elite prestige department. Look at that professor benefits package!*
Granted, from this world's perspective it was probably a policy designed for the students' sake.
But frankly, if that wasn't the single greatest benefit and privilege a professor could receive, what was?
Swept up in a wave of relief, I stroked the nape of Kim Minjeong's neck gently and answered.
"Thank you for the explanation, Assistant Kim. Thanks to you, I'll be able to conduct our classes very comfortably from now on."
"Yes. Then… shall we begin right away?"
"Of course."
With every practical constraint and worry vaporized completely, there was no reason left to hesitate.
I took both her legs as she lay on the sofa and spread them wide into an M-shape.
Between those parted thighs, beyond the pushed-aside panties, I could see a red, lewd, quivering entrance drooling with clear arousal.
I pressed the hot, hard tip of my pillar precisely against that slick opening.
"Then, Assistant Kim — let me now verify your practical competence firsthand."
"Yes…."
*— Shlk!*
"Huuuk?!"
With those words, I drove my hips forward in a single, forceful thrust.