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“What the fuck are you wearing?” Donghyuck points at Jaemin’s overall outfit.
“It’s my Advanced Sex Ed outfit.”
The outfit that Jaemin has just dubbed as his "Advanced Sex Ed" outfit features a grey hoodie with matching tracksuit pants. The entire outfit looks typically of those can be found on university students who are too busy to dress up and the kinds that seek comfort over style. However, Jaemin's outfit isn't that simple. Na Jaemin doesn't like leaving things simple. The hoodie is choppily cropped (it was a DIY moment that Jaemin had ) and the matching tracksuit bottom is a bit too tight to be comfortable. This is clearly neither a functional nor stylish outfit. The whole purpose of it is to do one thing: thirst trapping. Frankly, Donghyuck doesn't want to know who his friend is trying to impress, but he just has to ask because otherwise, Jaemin would dictate the conversation and it's never good when you give Na Jaemin the power to control the whole conversation.
“Is that a fucking gold belly chain?” Donghyuck squints.
“Why yes, it is!” Jaemin proudly lifts his cropped hoodie up to show off the thin gold chain around his slender waist.
“Why are you wearing it to an Advanced Sex Ed class?” It’s too suspicious and convenient for Jaemin to dress up like this. He’s throwing hints, but Donghyuck doesn’t know at who. “Who are you trying to fuck?”
“Professor Lee.”
“Which one?”
“Lee Jeno.”
Donghyuck gawks, “Are you fucking serious?”
“Yes, I’m dead serious.” Jaemin sniggers. “What the point of me doing this compulsory Advanced Sex Ed class if I can’t fuck my hot hunky daddy of a professor.”
“It’s immoral and unethical.”
“He’s hot; I’m hot; we’re both legal. How is it immoral and unethical?”
“He’s a professor and you’re his student.”
Jaemin narrows his eyes before hovering like a hawk over his friend, “don’t go and act all high and mighty. I know you fucked your professor after Advance Sex Ed class last year.”
Donghyuck splutters before regaining his composure. “At least, I did not dress like a total slut while trying to get into his pants.”
“You were literally wearing a harness around your thigh to class!”
“Mark said he likes it!”
Jaemin gasps, “oh my god, you’re still fucking him.”
Donghyuck only moves to the first name basis if his one-night stand is promoted to friends with benefits level. It’s a thing that Jaemin knows his friend likes to do to differentiate the level of intimacy between him and his partners. It’s a complicated and useless way of making your hook-up feel special. However, it seems like Professor Mark Lee is definitely a many-nights stand now.
“Tell me,” Jaemin excitedly whispers, “it was the glasses right?”
“Yeah, it was the glasses,” Donghyuck admitted in defeat.
Right from the start, Jaemin had been telling Donghyuck about his theory of academically-gifted men are usually closeted kinky freaks, and if they wear glasses, they're basically the cream of the crops. Donghyuck refused to believe this theory until he stumbled onto Mark Lee — a shy and awkward Professor with a Doctorate in Human Physiology wearing horn-rimmed glasses while teaching Advanced Sex Education. Donghyuck isn't just kinky, he's also a slut with a corruption kink. As it turned out, Mark Lee didn't need to be corrupted at all. The man is a complete dom and brat tamer, Donghyuck fucking loves acting like a bratty sub. Perfect and wonderful matrimony if Jaemin has to admit.
“Do you think Jeno is into exhibitionism?” Jaemin ponders.
“What?” Donghyuck spits out, “no way. Lee Jeno? He looks as vanilla as a bean.”
“But he wears glasses, though, and he’s also an academically-gifted man.”
“Begone, thot!” Donghyuck waves Jaemin away as he skips in the opposite direction to where his seminar for Advanced Sex Ed is.
Jaemin isn’t a sex expert, but something about the way Lee Jeno carries himself in front of the class is incredibly attractive and commanding. It’s difficult to keep himself in check when Professor Lee explains the basics of human anatomy and how life is formed. If it wasn’t for him, Jaemin would never have lasted through this compulsory course that the university has forced them to do.
Donghyuck is right; Lee Jeno looks extremely vanilla, but sometimes, vanilla can be spicy too.
Jaemin may have talked big about wanting to get into Professor Lee's pants, but it has been six weeks into the semester, and so far, his campaign has been futile. He's thoroughly convinced that his hot hunky daddy of a professor is either asexual or a humanoid robot that was secretly developed by Boston Dynamics because every seminar, Jaemin has been parading around in outfits that would leave drool and dropped jaws everywhere he goes, but Lee Jeno hardly takes a glimpse at his outfits over.
“For today’s topic, I need a volunteer.” Jeno closes the blinds on the windows and locks the door before turning to face his students. “Anyone?”
Jaemin's hand has never shot up so quickly in his life. Several other hands join the competition, forcing Jaemin to chant a small prayer under his breath. Volunteering for Advanced Sex Ed means he gets to be Professor Lee's little helper and spends the entire class showing off his outfit to the object of his seduction. Perhaps by the end of this class, Professor Lee will bend him over and grace his hole with that thick—
“Na Jaemin.” He hears his name being called out.
Jaemin dumbly says, “me?”
“Yes,” Professor affirms, “you’re going to help me with today’s demonstration.”
Giddily, Jaemin saunters from his spot to the front of the room. The excitement of standing next to Jeno is overwhelming and he feels himself twitching in the confinement of his snug tracksuit pants.
“Mr Na, have a seat.” Professor Lee gestures to a lonely chair that is facing the entire class. Next to it is a rather long table, its length is just shy of Jaemin’s height.
Jaemin frowns at the formality. He wants Jeno to call his name again. It sounds nice on the tip of the elder's tongue and frankly, Jaemin thinks he could climax from the sound of his voice alone. Despite his internal unholy thoughts, he takes a seat and stares back at his classmate.
“Today’s topic is Human Sexual Intercourse,” Professor Lee’s voice breaks through the soft murmuring in the room.
The entire class is drowned in silence and Jaemin thought he heard it wrong. He cranes his neck to look at the Powerpoint presentation behind him, and indeed, today’s Advanced Sex Ed topic is about human sexual intercourse.
Suddenly, he feels stripped and exposed in front of his peers despite being fully clothed. The sound of Professor Lee's voice introducing the topic is also blurred out by racing thoughts in his head. If Jaemin has volunteered to be a part of the demonstration for today's topic, and it's about sexual intercourse between humans, the exhibitionist inside of him is buzzing with expectation and arousal.
“There are several erogenous zones on the human body.” Jaemin feels a presence standing behind him.
Jaemin’s automatic response is to take a deep breath and breathe in the scent of Professor Lee who is standing behind him. Like the Pavlov effect, his cheeks go pink at the stiffness in his pants and the fact Jeno’s fingers are caressing the area behind his neck. They delicate press and Jaemin has to physically bite his tongue to prevent himself from moaning in front of a room full of students that he still needs to spend the rest of the semester with.
“The usual spots are the area behind the ears, the neck, the back of the neck and the clavicle area.”
Fingers glide down his neck, and Jaemin’s body stops moving. He feels a bead of sweat rolling down his back when Professor Lee slithers under his hoodie and lifts it to reveal his bare chest to the entire class. He expects the class to react, but everyone is attentive and some are even taking notes as if their teacher isn't public groping a student in front of them.
“The nipples,” Jeno drawls, fingers pinching Jaemin’s hardened nubs, “are especially sensitive.”
Is it inappropriate to come in front of a room full of people who just want to learn about sexual intercourse?
The exhibitionist inside Jaemin doesn’t think so, but Na Jaemin, himself, has standards and morals so he closes his legs tightly to keep them from shaking. Of course, life isn’t that easy because Professor Lee’s hands move down south and land themselves between Jaemin’s legs. He lazily parts Jaemin’s thighs and sandwiches his hands in between the supple skin.
"For both males and females, the inner thighs are classified as one of the erogenous zones."
Jaemin thought he could easily breathe, but the hand moves again and he finds himself waiting with bated breath to see where they’re heading to.
“Mr Na,” Jeno calls him and effectively snaps him out of his stupor. “Would you mind standing up for the next part?”
Jaemin must have looked stupid because his brain is taking its sweet time to absorb the words. Professor Lee, ever so politely, smiles at him sweetly and Jaemin has to remind himself that he's a human, and human needs to use their lungs to breathe and survive.
He hastily stands up but keeps his hand on the chair as a form of support. All the muscles in his legs feel like they’ve curdled into nothing but jelly. His extremities are tingling from some sort of sick enthusiasm. Jaemin isn’t shy, but somewhere in the back of his mind, his exhibitionism side is screaming in joy at the possibility of being fucked by the man of his dream – the apple of his eyes – in front of a hundred pairs of eyes who cannot look away.
“For traditional procreation, the male’s penis and the female’s vagina are involved. However, in recent times, anal sex and tribadism – the act of grinding and stimulating one’s clitoris and the vulva with another female’s vagina – have become increasingly popular.”
Jaemin visibly gulps when he looks into Professor Lee's eyes. It's distracting, so, he decides to look at his own reflection in the glasses that his professor is wearing. Their breaths are close as Jeno sends him a lopsided smile. If Jaemin isn't stuck in a room full of other people, he would lean in and kiss his professor right there on those stupidly attractive lips, but he is volunteered as a human sex doll and Na Jaemin is nothing but a method actor (and an obedient sub, but that's beside the point).
“For the next part, I’ll need you to take off your clothes, Jaemin.” Once again, Jaemin shivers at the sound of his name escaping his professor’s lips.
Jaemin unwittingly stutters, “I beg y-your pardon, professor?”
“For the next part, I will need you to take off all of your clothes, Mr Na,” Professor Lee authoritatively repeats. The way his eyes darken behind those frames and staring into Jaemin's shaking pupils. "That includes your underwear as well."
Never in his entire twenty-two years of existence does Na Jaemin think his manhood could get harder than it is right now. The assertive tone and predatory gaze are doing wonders to his inside right now. Normally, Jaemin is confident and a bit of a performer himself, but under the heavy aura of Lee Jeno, he feels meek and powerless against such an imposing figure like his professor.
Professor Lee doesn’t rush him nor does he encourage Jaemin to speed up the process, but the older man watches Jaemin shucking his sweatpants and underwear away, before shrugging the hoodie over his head and letting them form a messy pile on the floor.
“Thank you for your cooperation, Jaemin.”
Professor Lee needs to fucking stop addressing him with his name like that because Jaemin cannot afford to get even more aroused when his entire body is completely exposed for everyone to see.
When Jaemin looks around the room, there are signs of shock, but definitely nothing akin to discomfort. Some students are too shy to look directly at Jaemin’s nakedness, but many are unabashedly looking at him. Jaemin looks down to notice the belly chain that he still hasn’t removed. His shaky fingers fiddling with the thin gold chain before deciding to keep it on because the effort of getting it off isn’t worth it anymore.
He vaguely hears Professor Lee saying something along the lines of “how cute”, but he is too occupied to register it.
“We are now moving onto the main part of today’s topic, the intercourse.” Jeno goes back to the computer to switch the slide behind him. “Since Mr Na has graciously volunteered to help me with the demonstration, I want everyone to show him nothing but respect and utmost professionalism of an academic. If anyone behaves or reacts disrespectfully towards him, you will get an immediate fail for this class, and you will also have to write a five-page reflection essay on your behaviour. Am I clear?”
A chorus of “yes” rings through the room, and it lessens Jaemin’s nervousness and self-consciousness towards the entire thing.
This is for educational purposes. He volunteered for academic sake. There is nothing sexual or romantic about this other than the fact that he really wants to be boned by Professor Lee right here and right now.
Jeno returns his spot behind Jaemin. Jeno's hands gingerly lift Jaemin's erection to display it in front of the entire class. Jaemin tries to shrink back in shyness, but his back hits the professor's solidly warm chest and feels it rumble.
“We will start with the male’s penis,” Professor Lee once again begins his explanation. “It’s made up of three different parts: the root, which is the part that attaches the organ to the body, the shaft or the body.
Jaemin tries not to quiver when Professor Lee rubs and massages his sensitive cockhead. Far from the vision of the entire class, Jaemin’s cock is leaking pre-cum profusely and Jeno takes the opportunity to glide his thumb across the engorged head and collects the excessive clear fluid. He tests its viscosity against Jaemin’s sensitive gland and softly chuckles when the belly chain around the student's waist rattles from the rapid movement of his abdomen.
"And, finally, the gland, which is the tip of the penis." the professor begins to stroke and slide the foreskin back and forth. Without looking at Jaemin or gauging his reaction, Jeno continues with his lecture. "The loose layer of skin that can cover the gland is called the foreskin. In certain cultures and religions, it is removed with a process called circumcision. It is controversial and a highly debated topic, but that isn't a topic that I will be covering in this course."
Jeno resumes pumping Jaemin’s dick in front of the entire class as if he hasn’t given an entire run-down on the anatomy of the penis in front of a classroom full of students. Meanwhile, Jaemin is still controlling himself, but his hot hunky daddy of a professor isn't making it easier. The treatment he has been receiving is enough to make him come twice already, but Jaemin is holding back and it would be embarrassing if he comes prematurely. Nevertheless, the exhibitionist inside him is going insane because he is a step closer to achieving his ultimate fantasy of being fucked by Lee Jeno in front of prying eyes.
“Jaemin,” Professor Lee murmurs softly. If he wasn’t naked and flaunting his body, Jaemin would be on his knees from the sound of his name spoken by Jeno. “Could you put both hands on the table and bend over for me?"
The belly chain clatters when Jaemin sprawls his upper body over the plastic table. Both of his hands find themselves gripping the slippery surface on the table with the skin of his knuckles stretching thin and white. With his back facing the entire class, Jaemin is fully aware that his hole is a spectacle for Jeno and other students to look at. His cock is leaking at the idea of presenting his hole to not only the teacher he has been trying to seduce, but the thought of being watched while he and Professor Lee share an intimate moment is extremely arousing and provocative.
“Here we have the scrotum. It contains the testes or testicles and acts as a protective layer that regulates the temperature for sperm production. ”
Professor Lee’s palm nudging the delicate skin of his ball sack. The blood in Jaemin's body immediately pools down to his nether region and the muscle of his behind constricts to restrain himself from moaning shamelessly. His knuckles grip the table to keep himself from falling onto the floor as Jeno begins to fondle his balls like they’re his new favourite toys.
“Next, we have the perineum.” A finger skims past the fluttering muscle of Jaemin’s rim before pressing the skin between his balls and hole. “It's one of the popular erogenous regions in both males and females. If the correct amount of pressure is applied, it can bring extreme satisfaction to your partner."
Right on cue, the professor pushes against the sensitive skin of Jaemin’s perineum. Instantaneously, he whimpers and his thighs convulse as Jeno keeps the pressure on the area. By now, Jaemin’s cock is completely hard from the ministration he has been subjected to and his pre-cum is forming a trail of dots on the floor. He tries to keep his breathing steady, but as if sensing his struggle, Professor Lee lessens the pressure and allows Jaemin to breathe, but it’s all temporary. The pressure returns without a single warning. The sensation galvanises his entire body and sends an electrical spark down Jaemin’s spine. The spark sizzles and travels straight to the southern area of his body. Abruptly, Jaemin's cock ejects strings of cum onto the floor. He purses his lips in time to dampen the moan that comes with his sudden orgasm, but it's not entirely mute.
Upon witnessing his student’s first orgasm from a mere stimulation of the perineum, Professor Lee praises, “wonderfully demonstrated, Mr Na.”
Jaemin’s cheeks burn from both the praise and the embarrassment of his very first public orgasm. Nevertheless, he feels like it has set the precedent for all his sexual expectations now. If Lee Jeno could make him come from just touching the tender skin of his perineum, Jaemin wonders how wonderful his cock would feel against the wall of his hole.
His lewd thinking session ends abruptly when he feels something wet and slick against the outer rim of his entrance. It's lube – warm, wet and smells like vanilla. Jaemin wants to curse out loud because there is nothing vanilla about the whole situation right now.
Such irony.
“This,” Jeno says before plunging a finger past the tight ring of Jaemin’s entrance, "is the anus. It is also regarded as an erogenous zone because of the high concentration of nerve endings. However, these nerve endings shouldn't be confused with the prostate gland, which is known as the male G-spot."
Jaemin gasps weakly as he feels the lone pointer finger pushing against his wall and narrowly misses his prostate. Professor Lee looks at him through the rim of his glasses, and Jaemin catches what looks like a hint of deviant in those eyes. He's intentionally teasing Jaemin. There is no way that long finger could have missed his prostate and a man with sexual experience and anatomy knowledge like Lee Jeno would never miss such a critical region.
“During anal intercourse, preparation is extremely important especially if you’re a well-endowed man.” A second finger casually joins in and Jaemin’s breath clogs in his throat. “The anus contains muscles that expand and contract to accommodate your partner’s penis – no matter how long it is. However, because it isn’t naturally lubricated like the female’s vagina, additional lubricant is necessary.”
Jaemin feels a drizzle of cold lube against his needy hole before a third finger cramming in. His hole overzealously accepts it and he could hear Jeno chuckles approvingly under his breath. Instead of purposely missing his prostate, the professor crooks his fingers expertly and nudges Jaemin's gland without much difficulty. The touch propels his entire torso into the table and the racketing sound of the chain around his waist against the solid surface is ringing loudly in the silence of the classroom.
It would have been a normal lecture on human anatomy if the professor, who is in charge of the lecture, isn't shoving his digits deep inside one of his students in the presence of his other students – all for the sake of education, of course. It would also be a very normal lecture if the student, who is subjected to the said fingering, is actually enjoying it. This is how Jaemin wants his dirty fantasies to play out and Professor Lee is fulfilling them without realising how much of a kinky pervert his student is.
Jaemin is maneuvered to face the class. The room looks different after he had experienced his abrupt orgasm. Everything is hazy like someone had just placed multiple Instagram filters over his vision. The faces of the audience are blurred and indistinct, Jaemin feels like he's
floating between reality and a dream.
While he's naked with nothing but a thin gold chain cinching his waist, Jaemin realises he is standing before hundred pairs of eyes in nothing but his bare skin and a little belly chain. Consciously, he brings his hands to cover his manhood and shyly shrinks back into a tiny little ball in front of the entire class. He feels Professor Lee approaches him from behind and chuckles softly into his ear.
"Suddenly, you're all shy?" Jeno taunts. Jaemin's eyes are darting around to see if anyone, particularly those who are sitting closer to the front, heard what the professor is murmuring into his ear. "Look at you, getting hard from the thought of getting fucked by your professor's big cock in front of your friends."
Shiver wracks through his body and true to Jeno’s words, his cock jumps and pre-cum oozes from the slit of his cockhead. Two fingers are circling his sore rim once more before running along the crevice of his ass and leaving behind a trail of wetness. Jaemin pants when those two fingers plunge themselves into the depth of his hole, and they curl just enough to hit his prostate. Jaemin couldn’t hold back his mewl in time, and openly sobs as his sensitive spot is being assaulted by Professor Lee’s skilful fingers.
“Before we move onto the penetration, we need to talk about the prostate.”
Jaemin's entire body stiffened at the word 'penetration'. Is Professor Lee going to penetrate him in front of his student? If so, Jaemin would love to be fucked in front of witnesses like this. You got to seize the opportunity; getting fucked by your hot hunky daddy of a professor in a room full of your peers is the kind of opportunity that Na Jaemin cannot pass easily. It’s killing two birds with one stone.
"The prostate is a gland that sits above the urinary bladder and is surrounded by the urethra. It's the size of a walnut and weighs between 7 to 16 grams, which is approximately 0.25 to 0.56 ounces. It sits just below the urinary bladder and is encompassed by the urethra, which means if you happen to stimulate your partner's prostate while their bladder is full, you will likely experience the urge to urinate or even actual urination itself during intercourse."
Jaemin listens to the explanation tentatively and suddenly the thrill of being stimulated with a full bladder courses through his body. He enjoys the feeling of not being in control; he likes feeling vulnerable and completely at the mercy of someone else – just like right now. If he wasn't standing – naked – in front of an entire classroom filled with people his age, Jaemin would get down on his knees and beg Professor to overstimulate him. The idea of being so overstimulated to the point he loses control and urinates all over himself sounds like the perfect perversion for Jaemin.
Those two fingers are now becoming three and Jaemin feels his cock hefting up at the feeling of them sweeping and groping his wall. The fingers pressure his prostate and Jaemin's thighs instantly tremble. Professor Lee seems to be unaffected and continues with his lecture while riling Jaemin up with his fingers against his prostate.
"As I have demonstrated before with Mr Na, the prostate can be stimulated externally through the perineum, but direct stimulation of the prostate using the penis will achieve a much stronger orgasm."
“Professor Lee, I have a question.” A voice of a girl calls out. The thrusting inside Jaemin’s hole ceases and he uses this chance to catch his breath.
“Yes?”
“You said the anal canal can accommodate a penis no matter how long it is. How do we know the length of our partner’s penis?”
A peal of muffled laughter erupts, but Professor Lee hushes them immediately. Without seeing it, Jaemin could feel the stern tone and imagine the strict stare his professor is giving him. Something stirs inside Jaemin when he thinks about the dominance that oozes around Jeno. He hopes Jeno would also carry that same aura of dominance inside the bedroom.
“You can use a ruler.” A rather simple answer, but it isn’t the final answer. “But if you want to make it fun, use your partner’s body to measure. Trust me, they will love it.”
A commotion once again erupts, and Jaemin takes the opportunity to sneak a glance at Jeno. He’s surprised to see the older’s eyes are already on him. His body tingles when he catches the dilation of Professor Lee’s pupil and the blown-out look that he’s currently sporting. It excites him to no end that he made his professor like this.
“How long is yours, professor?” A different voice – a male this time – calls out. Giggles explode through the room, and Professor Lee makes no effort to shut them down.
“How long is mine?” the professor ponders for a while before turning his gaze down to Jaemin, who is still bending over the table with three of Jeno’s fingers jamming incessantly on his prostate. “Would you mind helping me out with that, Mr Na?”
The sound of the zipper being pulled down is distinct and it sends Jaemin’s mind into a frenzy. He is going to get pummeled by Professor Lee's cock. The anticipation builds up further when he turns to see the professor ripping a black condom packet with his teeth before spitting the loose end on the floor. The whole act is laughably juvenile and fits the cliche narrative that only happens in poorly-produced porn, but in Jaemin's lust-addled mind, he finds the lack of care that Jeno carries extremely attractive and it doesn't help his current situation either. Jaemin's eyes track down the pubic region and he gasps.
With only his trouser’s zipper, Lee Jeno’s cock is hanging freely from the opening. It’s completely erected with pre-cum oozing from the tip. An epiphany strikes Jaemin at that moment – his professor got hard from fingering and playing with his student’s hole. It sounds like a poorly thought-out plot for a low budget porno video, but the elation of knowing he did that to Professor Lee emboldens Jaemin.
“Professor,” Jaemin demurely calls out, “let me help you with that.”
Bravely, Jaemin saunters next to Professor and takes the man’s cock with his hand. The appendage is hard and heavy in his hand. Jaemin tries not to drool, but it’s hard to not get down on his knees like a whore that he is and takes the entire thing into his mouth. His hand strokes the length and feels it twitches inside the palm of his hand. He coyly looks up at his teacher to see the professor is glowering at him with unspoken lust.
Gosh, Jaemin is loving this.
When he has deemed that Professor Lee’s dick is at the appropriate hardness, Jaemin uses one hand to pinch the tip of the condom and expertly roll it down. He doesn’t expect the condom to end at the mid-shaft of his professor’s manhood. Lee Jeno is big – Jaemin is aware of that — but he doesn’t expect him to be so impressive that an average manufactured condom could barely fit half of his length. Now, a sense of anticipation is washing through him. Na Jaemin cannot wait to have the entire member inside him.
Dear God, he hopes it will give him a tummy bulge.
"Thank you, Jaemin." The words come out hoarse and rigid. Jaemin could see Professor's eyes are simmering with something darker and more sinister.
Jaemin feels the professor's searing breath against his nape. Those lips are so close that he wishes they would inch closer and leaves a map of purple kisses in their wake. He would love to walk around the campus, flaunting those discoloured kisses that everyone knows he got from Professor Lee.
Something firm and solid nudges his rim. His mind hasn't registered it as reality. It's the stretch of his entrance that brings Jaemin back down to Earth. Thoughts coursed through his pretty little brain as his hole widened to accommodate the intruding manhood. Everything about him is accepting Lee Jeno easily and Jaemin enjoys that. He loves being pliant and malleable for Professor Lee Jeno.
There is a sense of eroticism to the whole act of exhibitionism. Jaemin looks up just to see all eyes are on him and that intensifies the pleasure building up inside him. He loves being watched by everyone; they're watching him being impaled by Lee Jeno's oversized cock and there is nothing they can do about it. He wonders what they see. Jaemin hopes they feel envious of him, though; he knows he would be if he had to watch someone else getting penetrated by Professor Lee.
A subtle command that Jaemin almost misses as he feels the push stop abruptly. “Would you mind telling the whole class how deep I am in, Mr Na?”
Jaemin doesn't know what to do. He looks down at his stomach and is enthralled by the marvellous sight that greets him. A small bulge that sits prettily right between the horizon of his hips. Curiously, he reaches down with one hand to feel the skin of his tummy expand to take the shape of Jeno's cock. It's fucking captivating and Jaemin wants to weep at this immaculate view. He's being obscenely branded by Lee Jeno before several witnesses. Jaemin feels his cock weeping with pre-cum once again, and he hopes it's not too soon for a second orgasm.
Jeno leans into his ears and whispers cockily, “How deep am I inside you, sweetheart? Tell them.”
"It–it's so deep," Jaemin admires deliriously. There are no academic words to make what he's about to say any less indecent. "Your p-penis is really deep inside me, professor."
A short hum of approval before, Professor Lee nods and adds aloud, “would you like to go all the way, darling?”
Jaemin pauses. Professor Lee isn't fully sheathed inside him. His heart beats faster with the anticipation of completely taking that beautiful cock inside him. Jaemin wonders how far it will stretch him. Will it make him look pregnant? He fucking hopes so.
“I–”
“Sweetheart, I have a class to teach so we don’t have all day.”
Right, Jaemin has forgotten that this is for the class. It’s hard to remember that he’s being fucked by his professor for academic purposes.
“Please, g-go all the way."
He feels it; he feels the way Jeno's cock slithers against the tight channel of his inside and forces its way to his prostate. Despite the ample preparation and the sensitivity brought on by the first orgasm, Jaemin feels the burn of the intrusion. He squirms at that final stretch of the push, but Professor is quick to anchor him in place with a bruising grasp on his slender waist. The fragile gold chain digs into his bloated tummy and Jaemin is reminded how his tummy is from accepting the entire length of Jeno's cock.
Faint gasps and wide eyes look at him in awe. Jaemin feels invincible. He loves the attention and basks in a spotlight that was created just for him. They're all watching him getting fucked by someone unattainable and he loves seeing the way some male students are palming their crotches gingerly, while the females are pursing their lips and crossing their legs to modestly hide their indecencies. Those are all Jaemin's doing and he thoroughly relishes in being the cause. They have an audience to entertain, and Na Jaemin is nothing but a performer.
"During penetration, the prostate provides the most pleasure; just like the G-spot for women." Professor Lee moves leisurely. His speed is lazy, but Jaemin cannot contain himself. With the way Jeno's cock is sliding against his wall, he's heaving and struggling to maintain his breathing. "Due to time constraints, I cannot show and go in-depth on how to find the prostate with your fingers, but the same method for finding the female's G-spot can be applied to it. Could anyone tell me how to find the female G-spot?"
The question is left hanging in the air. The entire class – particularly Jaemin – is severely distracted. Despite having his back facing the professor, Jaemin is aware that he is scanning the entire room to pick a victim to answer his question. The whole act itself is already daunting for students who do not like to answer questions under the intimidation of Professor Lee Jeno, but with such a vulgar act happening before their eyes, the task has reached a certain level of difficulty.
The thrusting against Jaemin’s hole grinds to a halt before he hears Jeno asks, “Mr Na, would you mind answering my question?”
“Would you mind re–aah–repeat the q-question please, professor?” Jaemin stutters.
Even though he has stopped moving, Jaemin could feel the shaft throbbing inside him. It’s aiming for his prostate and with those strong hands around his waist, Jaemin thinks Professor Lee is just toying with him at this point.
"Could you tell everyone how to find the female's G-spot?"
There is no thrusting, but Jeno trails his hand down to Jaemin’s lower stomach and plays with the belly chain that is sitting tautly against the bulge formed by his cock. It’s incredibly distracting, and Jaemin whimpers from how unfair it is. As if the older man has read Jaemin’s internal complaint, his hand moves further down south and plays with the weeping cockhead that is painted with pre-cum.
“Go on,” Jeno encourages. “I hope the demonstration isn’t too distracting for you, Mr Na.”
Jaemin grinds his teeth and tries to steady his breath before he starts speaking, “To f-find the female’s G-spot, you must first insert your fingers into–”
His mind is severely preoccupied with the feeling of Professor Lee's thumb brushing across the stretched skin of his cockhead. Jeno carefully collects every drop of the clear pre-cum and spreads along the length before stroking it languidly. The loose fist around his cock is enough to divert Jaemin's attention, but the words are trapped in his mouth when the professor stops stroking and pries Jaemin's urethra opening with the pad of his thumb. Jaemin's legs tremble and instinctively fold them together to stop the ordeal, but his sudden movement pushes more of Jeno's length along his contracting wall and spears it into his prostate.
“Aagh,” Jaemin moans. “Insert your f-fingers into the –”
Jeno exploits his momentary weakness and circles his hip. Leaning down with his lips close to Jaemin's ear, he whispers, "a real cockslut, aren't you? I knew you were one the moment you walked into my classroom. Didn't think you're kinky enough to be an exhibitionist either, but look at you right now, showing everyone how well your little slutpussy can take my cock. You know you're a fucking real treat, right, Jaemin."
Jaemin feels that cock gyrates and hits the sensitive part of his inner channel. Causation equates to a reaction; the causation is there and Jaemin’s reaction to it is to shut his eyes and cry out in mind-numbing pleasure. Lee Jeno doesn’t need to fuck him wildly without care to bring Jaemin to the peak of pleasure. The way his hip circles and subtly pushes in just enough to jab Jaemin’s prostate speaks enough of his knowledge. Jaemin feels inexperienced in the hands of Professor Lee, who seems to understand his body so well despite touching it for the first time.
As if he hasn't whispered those words to Jaemin, Jeno assertively says, "Please continue, Mr Na."
The hand that has been loosely fisting Jaemin’s cock is gone and the gyrating comes to a slow halt just in time for Jaemin to gather his thoughts.
“You must first in-insert your fingers five to eight centimetres into the v-vagina,” Jaemin pauses once again. His hole spasms at the throbbing member that is prodding deliciously at his prostate. Everyone is looking at him expectantly, and Jaemin realises he still hasn’t finished his answer. “Then, you angle your fingers up towards the belly where the an-anterior vaginal wall is, a-and begins to stimulate.”
"Excellent answer, Mr Na," his professor praises.
Upon finishing his answer with much difficulty, Jaemin feels a low rumble behind him. Professor Lee is chuckling and praises drip off his tongue, but Jaemin is far too stimulated and lost in the pleasure when the cock inside him begins to move once again. The hastening drive of his teacher’s cock inside his hole is his reward for answering the question and Jaemin graciously accepts it.
The overwhelming sensation takes over his body and Jaemin writhes feebly in Jeno’s arms. The thrusting is generous with a pace that is enough to bring him up to the apex of an orgasm, but Professor Lee stops just as Jaemin is sitting atop the climax. There is no drop and like a ball losing its momentum, his climax is never reached, and Jaemin feels the balloon of pleasure deflate.
“P-please please please please,” Jaemin begs. Voice edges towards the pleading tone of a promiscuous harlot rather than a helpless student who needs help with a difficult question. “Please, professor. Please let me come. I’ll do anything. I-I will answer any question. Professor, please let-let me come. I promise I’ll be good.”
Pride can be damn; self-worth is out of the window. Na Jaemin doesn't care anymore. He doesn't give a flying rat that people are watching Lee Jeno fucking into his dripping hole for the sake of education; he needs to cum and if Jeno could make him squirt, that would be wonderful too. Beggars can't be choosers; Jaemin doesn't have any choice but to beg for some mercy. Yet, it seems like Professor Lee is adamant about continuing with his teaching plan.
With a neutral tone to his voice, Professor Lee proceeds with his lecture as the assault on Jaemin’s prostate comes to another stop. Jaemin’s indistinguishable blubbering and pleas are nothing but white noise to the professor’s ears.
“While I have no objection to using fingers, toys or even your tongue during intercourse, I highly believe that naturally achieving an orgasm with a penis is always the most desirable method – especially if your partner is a size queen with a short refractory period like Mr Na here, who is evidently ready for his next orgasm.”
The smugness and unwavering tone in the professor's voice are detestable, but he had spoken nothing but the truth. It isn't wrong to label him as a size queen, but Jaemin never knew how short his refractory period could be until Jeno comes along and decides to fuck him before an audience in the name of education. It feeds into the hidden exhibitionist kink that he has been trying so hard to hold down and suddenly Jaemin thinks Professor Lee has just ruined him for everyone else
From this day onwards, Na Jaemin doesn’t think no one can fucked him the way he is getting fucked right now by Lee Jeno.
He could feel the impending build-up to the next orgasm, but once again, Jeno stalls and Jaemin’s frustration is evident through his pouring tears and helpless keening. He wants – no, he needs to come. The desperation has manifested its insanity and is clawing him from the inside. He could beg for more, but from his previous display of imploring, laying down his pride doesn't help with speeding up his orgasm. Jaemin is trapped in the hands of Lee Jeno and the man may not have him on his knees, but they're now playing to the tune that Professor has decided for them and he has Jaemin begging like a starved animal.
“There are several signs that your partner may be approaching their orgasm,” Jeno drawls lazily, “they may be vocal about it with their begging and crying. They will most certainly express it on their face.”
A sharp thrust drives the appendage all the way deep into Jaemin. Drool and snots are rolling down Jaemin's face as he feels himself shaking and trembling from being filled with nothing but Jeno's cock. Tears are clouding his sight, but if there is a mirror, he wonders what would he see in them. Maybe he would see his professor's penis sitting somewhere high up his abdomen. If he must go by the constriction that forces his waist chain to dig into his skin, the phallic shape should be more visible to the naked eyes. He wishes someone in the audience is brave enough to take a photo of this moment because Jaemin would frame it. It's the kind of memory that he wants to last forever in physical form.
“If the receiver is a female, you will notice a copious amount of vaginal fluid. However, if your partner is a male, you will notice that their penis becomes extremely sensitive to the point it may twitch involuntarily.”
As if his words are laced with magic, Jaemin feels his cock twitching. In between the sound of his sobbing and the downpour of tears, he sees the awe and curiosity in his classmates' eyes as if this is their first time witnessing a man's cock twitches from being fucked by another man and being edged to the brink of insanity. It fuels the exhibitionism that has been residing inside Jaemin. Instead of curling away in shame, he arches his back and preens proudly as if he's parading himself like a centrepiece of a party.
Jeno must have been pleased to see his student is immersed in the role of a needy minx. He drives his cock into the puffy pink hole that has been accepting his pleasurous torture for the past hour. The rim tightens and moulds itself to the ridges of his cock. Every drag of Professor Lee's phallus against the wall of Jaemin's hole brings nothing but perverted moans and debauched cries for more. For Jaemin, everything is too much, but at the same time, nothing is enough.
"Continuous and constant stimulation will lead to the tightening of the anus or the vagina, and that is one of the vital signs that your partner is very close to their orgasm." There is no more whispering or muttering from the professor. Instead, Jaemin hears his professor emphatically asking him, "are you close, sweetheart?"
No words can describe the desperation he feels. The urge to release is primal and Jaemin is reduced to nothing but his basic instinct of wanting to be bred. He closes his eyes and shallowly breathes through his nose. Every gasp of air could quench his thirst and he listens to the way his professor’s balls slap the back of his thighs, and the ache of the thin chain around his waist threatens to burst with Professor Lee’s every thrust into his hole.
Professor Lee repeats the question, “Jaemin, are you close?”
Once again, Jaemin doesn't answer; he couldn't answer. Instead of answering the question, he opens his eyes once more and everything is the same and different all at once. Everyone is still goggling at him while Professor Lee pummels into his sex orifice mercilessly, but it's almost as if he's looking through a kaleidoscope. The room is vividly tinted now and there is an explosion of colours; every detail is crisp and sharp as if the artist has forgotten to blend in his paint strokes.
Everything that is happening right now feels unreal like Jaemin has been asleep for too long and trapped in his dream. There is nothing to discern that what he is currently going through is real. Yet, the feeling of his professor's genital jamming itself into his backside and the way his cavity opens and sucking it in tell him this is far cry from a dream.
Jaemin could see each and everyone’s expression in the audience. Some of them are looking on in awe, while others are gasping in a mixture of astonishment and bewilderment.
What are they looking at?
Why are they stunned?
Jaemin realises what they are admiring. He feels wetness pooling at his feet as if he has dipped his feet into a small pond. When he looks down, Jaemin realises the phenomenon that is happening before his eyes. He's ejaculating, but there is no semen or cum; instead, his cock is drooling and expelling continuously streams of clear fluid that is wetting the floor beneath them. It gushes at his feet as Jeno pounds into him. Jaemin couldn’t believe what he was witnessing – Professor Lee is fucking him so nicely that only does he come, but he also squirts. He weakly moans and gasps at the scene before him.
All his depraved wishes were truly granted today.
"Remember when I said the consistent prostate stimulation can lead to the feeling of needing to urinate or even urination?" Jeno addresses the class, "Mr Na, here, is demonstrating the phenomenon that is known as 'squirting' or 'gushing'. While it is common in women, it is prevalent in men too. While it is not exactly pee or urine, the fluid that Mr Na is secreting contains the components of semen and a small amount of creatine and urea – both of which are the primary elements of urine. Therefore, it can be concluded that the fluid is just diluted urine."
At that exact moment, the clock strikes. It signals the end of the lecture and effectively snaps everyone out of the dazed focus on the demonstration. The audience is fixated on the scene before them and no one is moving to leave. Professor Lee slows down his pounding and stabilises Jaemin, who has been reduced to nothing but a crying mess, with his sturdy chest.
"That is it for today's demonstration," his voice echoes throughout the hall. "I'll be uploading the reading materials for next week. There will be a mini-quiz at the beginning of the next lecture. Thank you everyone, and thank you, Mr Na, for helping me with today's demonstration."
Those words came out as innocuous and unbothered like Professor Lee has been wrapping up one of his normally boring lectures that students could not wait to get out of. No one uttered a word; no one parroted the word 'thank you' and Jaemin don't expect them to. What exactly should you say after witnessing a live demonstration of Sex Ed where your educator outrightly engages in sexual intercourse with another student right before your eyes.
Nothing.
You should say nothing.
Even if words leak out of this classroom, no one would believe you. Rumours may spread and people will whisper, but there are much more salacious things that go on in this university than just students sleeping with teachers. Sleeping with a teacher under the facade of demonstrating a lecture is less sexual than doing the same behind closed doors for the sake of passing a class. With his devil-may-care attitude, Jaemin assumes that Professor Lee had everyone sign a consent and NDA form beforehand (he know he did before joining the course).
Jaemin shyly curls away as he watches his classmates scurry out of the room in an orderly fashion. Some of them sneak one last glance at his uncovered body pressing against their professor before leaving the lecture all. No one exchange a word and their presence are lost to the vast corridors that leads them back to the main atrium of the university.
When the last of the student left, the door closes to a clicking shut. No one is present in the room but Na Jaemin and his professor. Jaemin has finally recovered from his string of climaxes but is still painfully aware of the pulsing cock that is lodging itself inside him. His hand skim across the bulging outline that has been ingrained by Professor Lee's cock and it serves as a reminder that Jeno hasn't withdrawn; feeling it with his hand rekindles something feral and titillating inside of him.
“You really like being filled that deep, don’t you?” Jeno chuckles from behind him. Jaemin blushes at the teasing. “You’re cute when you’re blushing like that. All innocent and inexperienced as if you haven’t taken a cock my size before.”
“I h-haven’t,” Jaemin admits. He never claimed to be a virgin but having something this size inside him is a first, and now, he doesn’t think he could go back.
“Oh?”
“Are you going to finish what you started?”
The cock that has been nestled inside him disappears. Jaemin whines pathetically as he reaches out to secure Jeno. The sudden urge to be filled with his professor’s cock and being bred is asphyxiating him. Lee Jeno needs to take responsibility for what he had started and even if it means painting Jaemin’s inside with his milk.
Jaemin’s voice raises a single octave from the sheer panic of leaving their dirty incompleted. “W-where are you going?”
A blind force flips him around and pins him to the table. Two arms barricade Jaemin before directing him to look at Jeno in the eyes. For the first time, he finally sees the lust that blackens the professor's eyes behind his reflective lenses. The way his jaws clench and nostrils flare as if he couldn't constrain his inner impulse to fuck Jaemin once again. At a glance, Jaemin could see the cock that had been inside him is still erected and begging to be milked. His hole twitches at the mere thought of getting pounded by that throbbing manhood before being plugged with cum.
His thirst must be apparent because Jeno chuckles. His cock is toying and easing Jaemin's entrance open again. A sharp push back inside has Jaemin wheezing for air. He wasn't prepared for it, but it seems like Professor Lee wasn't going to allow him anyway.
“Na Jaemin, you’re such a fuckin’ cockslut,” Jeno growls. “You came so many times already and you still want to be filled? You want to be my lil’ cumwhore that much?”
“Ye-yes! I do!” Jaemin cries out. “I–ah– I want your c-cum inside my tight h-hole. Please–ngh–please fill me up. Keep my tummy b-bloated please.”
“I bet you will look so nice with your tummy full of my cream.”
The pace is nothing like the same kind he had experienced during the demonstration. It’s brutal and barbaric with not a single drop of clemency for the receiver. Jaemin is writhing and wailing from the excessive stimulation. He can’t come – he doesn’t have any fluid left to discharge. His rim is sore and his body is slicking with sweat. Yet, the way Jeno’s cock is pushing into his prostate is leaving him tethering on the edge of unhinged pleasure.
He loves seeing the way Lee Jeno is looking at him – untamed, wild and resembling a crazed animal. Jaemin’s breath is caught in his throat when Jeno’s palm confines his throat. More tears spill involuntarily when the grip tightens and Jaemin is sent into a fit of panic. His lungs constrict and his eyes dilate when Jeno looks down at him and smiles.
Stunning. Stunningly beautiful.
Like the devil with no mercy. Jeno maintains his inhumane speed and the pressure around Jaemin's throat. His movement never falters – not even when the boy underneath him is gargling for air. Jaemin squeezes his eyes shut when he feels Jeno pushing unbearably deep into his canal and tarnish his inner part with his elixir. Jeno's cock is pulsating fiercely and Jaemin could feel it all the way in his tummy. One hand blindly dazedly rubs the taut skin of his stomach. The distension is apparent and he could feel the professor's cock under his damp skin.
“Fuck,” Jeno pants before pulling out and staggers back slightly from his explosive orgasm.
He only opens his eyes when the clutch on the column of his throat is released. It was only when Jaemin sees the elder yanking the condom off his length that Jaemin realises Jeno did not come inside him. His face falls into a sulking pout before scrambling off the table where he has been situated. The ringing of the belly chain around his waist shadows his steps.
“Wait!” Jaemin hurriedly bellows before grabbing the other’s hand to prevent him from discarding the condom. “Gimme that.”
Jaemin takes the used rubber and surveys it unsurely. Jeno is donning a puzzled look on his face when he sees his student sticking two fingers into the latex condom and scoops out a dollop of his creamy white secretion. Jaemin holds Professor Lee’s gaze before running his tongue along the length of his digits and lapping the cum that clings to it. He could see the dangerously sinful cloud behind those glasses as he pops those two fingers in his mouth and encloses his cherry red lips around them.
“Na Jaemin,” Jeno warns him ominously, but Jaemin just bats his long lashes.
He grins cheekily before sitting back on the table and knots the condom before throwing it into the bin nearby. The entire time his legs are wide open as if inviting his professor to fill the blank space between them.
“You know I prefer creampie though.” He winks suggestively.
Jeno closes the distance between them and one hand pulls them into a scorching kiss. Jaemin knows he’s playing with fire when he feels the other tugging him close by the gold waist chain that is cinching his waist. Their tongues dance and swirl around each other like a twisted game of hide-and-seek, and Jaemin is never good with that game. Soon, he feels Jeno pulling away from the kiss and swipe his tongue across the seam of Jaemin’s lips.
“That can be arranged, Mr Na,” Jeno smirks.
Jaemin’s heart thrumming in his chest. He could believe his ears that his professor is insinuating that there will be a continuance to what they were doing. His entire body palpitates with glee as he hops off the table to collect his discarded clothes.
Once again, Jaemin stands by his theory of academically-gifted men being closeted sex fiends who enjoy the kind of kinks that normal people shy away from. Donghyuck was wrong for calling Professor Lee vanilla.
If Lee Jeno is vanilla, he would be the pungently spicy kinda that burns your tongue and singe your throat, but once you have a taste, it’s difficult to go back to what you had before. Jaemin knows he won’t be going back to the same ‘vanilla’ kind of sex he was having before this – not after getting fucked by Lee Jeno in front of everyone.