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That Time a Student Made a Deal with the Fae to Pass My Class and I Gave Him an Oral Exam

Summary:

Dr. Ratio has seen some pretty creative ways to cheat, but this takes the cake. Hiring a fairy? Really?

Notes:

I wrote this for the Martingale zine! It was technically the first Ratiorine fic I ever wrote, and well, I'll mention more later. But it has been a hell of a year and a half for me. My other stuff is not abandoned just... return to office sucks and a very overdue big bang fic must be finished. And a little bit of mood whiplash at the end.

(See the end of the work for more notes.)

Work Text:

“And… begin.”

The students put their pens to their tablets.  As Dr. Ratio walks the aisles, observing students taking the last exam of his class, something catches his eye, a momentary sparkle.  Jewel tones: golden hair, and flashes of turquoise and pearl-white clothes.  When Ratio turns his head in the direction of that sparkle, he finds nothing there.  No reflections, no sparkles, just his students working.  He has chosen this room to prevent them from robbing themselves of the ability to demonstrate their knowledge or ignorance.  They are not able to see their peers’ work and they are unable to smuggle anything in using the logical methods.  If they did manage to get something in, he would be impressed.

Yet he can not shake off the feeling that there is one more person here, an intruder.  He sits down next to the door, leaning back to put his head against the wall and slowly closing his eyes.  He pretends to doze off, and though most of his students would know better, the intruder certainly does not..

Ratio does not respond as he hears the soft buzz of a notification on his phone, the first student to finish their exam.  As he expected, the young woman gets to her feet and hurries out.  He knows that one; she is not the best at theory, but her ability to make connections has led her to interesting insights in his class on multiple occasions.

As the doctor waits and students trickle out, the flickers grow stronger, almost a blur of color.  It is certainly not his imagination.  Ratio watches through the half-closed slits of his eyes, his expression impassive. 

One by one, the students turn in their exams.  One by one, they leave with ashen faces, nerves getting the better of them.  Ratio had told them all outright that he recommended they prepare something to look forward to after the exam, something to push through the jitters.

Now, there is silence.  Something is not right.  The foreboding feeling recedes when someone moves, when he is watching them.  Then, when he allows his attention to wander, to pass the time, it begins to grow again – a precise anxiety of the nebulous, that only comes with the impossible, imaginary way that dreams or fancies possess during the storm’s eye.

All that is left is one student, a girl with her head bowed and trembling as she continues to write on her exam.  Ratio almost feels pity for her, she has always been struggling in the class, but she has had an excuse every time he has asked for an appointment.  She will have to learn the hard way the truth he has been trying to share, he supposes.

She begins to get up and–

Wait.  There are two people now.   Now one, then two again.  The wavering figure is always the same, so if it is a hallucination, it is definitely a consistent one, which is… Unusual.  The sensation of being watched crawls up his back again, this time much closer.

Ratio jerks his head in the direction, only to find an inch away from his face is a man.  An impossibly handsome one, with soft fawn skin, blonde hair, pointed ears, and dressed in eye-catching, almost eye-searing jewel-toned attire.  Turquoise and gold on a body that is long-limbed and slender, the cut made to fit his frame.

A pair of the most absurdly pink shades that Ratio has ever seen meet his gaze, and that includes the horrendous fashion that passes for ‘popular’ with his students.  Jewelry drips from the stranger’s wrists and those pointed ears, sapphires like droplets, gold gleaming, and rings with gemstones on his fingers.  How the blazes has this man gone undetected?

The man clicks a stopwatch, a lazy grin on his face.  “Well, it took you long enough to notice I was about.”

“You have been here since the start of the exam,” Ratio replies.  He scans the room, gauging his student’s reaction.  She does not move at all, to Ratio’s concern.  “I was wondering how long it would take for you to stop clicking that pen.”

“It was that or playing cards.  Though, speaking of cards, here is my own,” He offers a card between his fingertips.

The cardstock is a pretty color — a shimmering blue-green with the lettering in a stark white that almost glows in the room.

“This is practically unreadable,” Ratio says, returning the card to the man.  It was not entirely unreadable; he had seen the name ‘Aventurine’ on it, as well as ‘Seelie Court.’

The bright-eyed man does not seem to know what to do with being handed back his own card.  “Did you not even read it?”

“Why would I?  It lacks color contrast, the font is illegible, and are you certain this is even paper?”

“It’s stone,” the fairy spits out.  “And it’s not like you don’t have that stone head of yours!”

“That is even more impractical,” Ratio says flatly, even as he files away the fact that this man has observed his lectures and knows about his marble bust. How long has this guy been watching his classes?  “Am I to assume that she made a contract with someone with your sort of taste in clothes?  And how?”

Aventurine, that had been the name on the card, shrugs, “Ask your student, not me.  I’m just here to collect.”

“Collect what?”

“Her!” The man flashes a smile far too cheerful to be discussing possible human trafficking of one of Ratio’s students, even as he gestures to the young woman frozen in mid-rise from her desk. “Well, technically, it is more about making sure she doesn’t try to hop to another planet, that is always so annoying, but she made a deal with me to let her pass the class.”

That is not acceptable.  Ratio gets to his feet, immediately noting this man is shorter than him. “Then, why should I let you collect her?”  At this angle, the doctor can see the man’s eyes – jewel-like as his attire, rings of teal and pink, wavering on the edge of violet, bringing to mind the eye of a peacock’s feather, almost hypnotic.  

“Because going back on a fae bargain is against the rules and she has been trying to cheat this whole semester?  It doesn’t seem very fair to let her just walk away unscathed.”

Ratio squints at the smiling young man.  Blonde, ethereal eyes, pointed ears.  Some sort of temporal manipulation and an impossible beauty.  In the back of Ratio’s head, he vaguely recalls fairy tales and some of the anthropological papers he has studied.  This fae is comely enough, with a nice jawline and pretty eyes.

For Ratio’s own sanity, he has to throw this charmer off of his script.

If this works, it will be an interesting exercise to say the least. “Would an attempt to get you pregnant suffice?”

“I mean, if you haven’t had any kids born— hold on a second!”  The fairy’s eyes widen as he sputters, pink staining his face as he pulls off his shades to stare directly at Ratio.  “You can’t just offer that instead!  I was expecting to take her away for a bit, and make a different deal, do a whole paperclip into a space station kind of thing—”

“It is traditional in most quaint folklore, isn’t it?”  Ratio leans closer to speak into Aventurine’s ear.  

A puff of breath awards Ratio with the sight of a full body shudder before Aventurine steps away, continuing to protest.“Just because it is traditional does not make it a valid offering in this day and age.  I mean, sure, my kind love to take in foundlings and orphans, but I did not agree to that.  I’m not just going to take some random kid, even if they should be taken away from you if you’re offering so brazen—”

“It would be having sex to produce one, and I have not had sex, therefore it would be a firstborn regardless of whether or not you have had children.   You’ve made it clear that you are not going to cheat to ensure she passes this exam.”

“For another thing—“ the rising color in Aventurine’s face makes it clear that he is protesting far too much. He cuts himself off, swallowing.  “Wait, seriously?  You are a virgin?”

Of course that is what he is distracted by.  “Would that be an adequate price?”

Reluctance and interest — a frown and a widening of pretty eyes — flicker across the fairy’s expression, glancing back at the woman frozen in mid-sentence.  “No. Whoever you’ve been with has definitely missed out on something.  But what’s in this bargain for me?”

“Not taking my student away until she actually passes the class, as you had originally agreed to.”

“Hm, tempting,” Aventurine leans against the wall, now examining his nails. “But how do I know that you won’t let her run?”

“You do not seem the type to allow that to happen.  You’ve probably stolen her passport already and she wouldn’t have noticed.”

“Excuse you, my time is precious, and that girl has been wasting it. I am in my right to ensure that she does not cheat me,”  Aventurine says with an indignant sniff as he crosses his arms.  The pout on his lips makes it clear. Even as he looks away, his eyes wander back to Ratio’s body, and after a moment he asks, “Then a wager, if we are going with fairy tale logic.  How about… You guess my name, since you are insisting that we go with the classics?”

Easy.  “Aventurine,” Ratio says, only to get a roll of those bejeweled eyes.

“That is a title, Doctor, not my real name,” Aventurine says with a playful smirk. 

It had been worth a shot.  “Perhaps,” Ratio says as he presses his arm against the wall. “I should try to seduce it out of you, hm?”  The difference in their heights is enough of a difference that on his knees, Ratio would have a direct line to whatever he has tucked away in these slacks of his.  Around half of his neck is a line of runes, words that Ratio does not recognize, nor does he really care to. Not when those smiling lips are right there, glistening as Aventurine licks them.

Aventurine gasps when Ratio puts his hand over the tattoo, Ratio’s thumb lightly touching Aventurine’s windpipe.  “Mm, by all means, you can try.  But I always win in the end.”

“Confident,” Ratio glides his hands along the brightly colored attire, grazing his teeth along the shell of a pointed ear.  So he just has to get this man off, and argue his case.  With logic, he will be able to navigate this just fine.  “Any requests before I do anything erroneous?”

“Kakavasha.”

“Is it some sort of spell?” Ratio asks, moving his hand down to the opening of Aventurine’s vest.

“So suspicious,” Aventurine huffs, catching Ratio’s hands as he smiles. He redirects them lower to his waist.  “It’s just a blessing of good fortune to my Goddess.  Think of it as thanking her for meeting me.  Focus below the belt.”

The way Aventurine’s cheeks are red make it clear to Ratio that it is not just a blessing, there is some sort of import to the word, but Ratio currently can not figure out exactly what it is.  He certainly can dwell on it as he considers the light, floral smell on Aventurine’s skin, how his lips are soft, just a little dry.

“Is it a contract?” Ratio whispers as he pulls away for air, his hands resting on Aventurine’s hips.

“The Court does not allow binding contracts to be in a language only one person understands,” Aventurine scoffs as Ratio pulls his belt from his trim waist, carefully setting it aside.  “They are fine with esoteric bullshit in the contract, that’s your fault for not reading it properly, but you have to be able to actually read it.”

A pink tongue flicks out, his eyes on Ratio as well.

“Why don’t you keep talking in it?”

“What—“

“And for the record,” Ratio interrupts Aventurine with a kiss, tasting mint and herbs, then the smooth sting of alcohol as Aventurine nips at him, “I do not kneel to just anyone.”

The words that burst out of those pretty lips are of a language Ratio does not know, but they sound utterly obscene, enough that he leans forward to taste them on his tongue.  He pulls Aventurine's clothes down, trousers and smalls, to expose exactly what Ratio is to work with.  As Ratio kneels down, a twist of pleasure bleeds through his gut.

Dark, rosy folds already glisten with juices and the heavy scent of roses.  A thick nub juts out from those folds among wiry curls that almost look invisible due to their pallor, a hint that the man’s golden locks are natural.  Ratio does not like seeing himself in the mirror, but like this, seeing a man wet and hard for him this quickly, with an enlarged clitoris and the effects of hormones, that does things to him.  Ratio knows how to work with this, and Aeons does he want to.  He sucks hungrily on the little dick before him, his tongue circling the tip.  The startled gasps he gets are more than enough to get him going, driving him to slide his free hand up to grip a palm full of Aventurine’s ass and squeeze.

Firm and taut, Ratio feels the interplay of muscle and fat under his hands as he hears another hungry groan.

“How the fuck are you so good at this–” Aventurine’s voice cracks like glass, his back arching as Ratio dips his tongue deep into the sweet, hot flesh before him.  The taste is… consistent with how he has smelled, a heady floral perfume, in direct contrast to the flavor of a human’s own juices.  It is still exquisite, accompanied by high noises as Ratio spreads Aventurine’s folds out wider to take in the little dick there.  The moment Ratio uses his tongue to push the clitoral hood away from the nub, Aventurine’s hips jerk forward, almost smothering Ratio with heat and skin.  The words melt back into the language that he had spoken before.

Ratio withdraws to speak, saliva connecting his tongue to the tip of Aventurine’s clitoris as he answers, “All kinds of knowledge are power, and I intend to learn as much as possible.  The hypothetical pleasures of the flesh qualify as something worthy of research, even if the active pursuit is something I am enamored with.”  He does not allow Aventurine to talk back, filling Aventurine’s hole with his fingers, seeking the spongy spot that— 

A leg swings over Ratio’s shoulder, Aventurine gasping as he drags his gloved hands through Ratio’s hair, jerks his face closer to Aventurine’s sex, trying to bury him with flesh.  Ratio pulls his head back, glaring in reproach at those dazed, jewel-like eyes. 

“Haa… Aren’t you going to guess?”

Ratio ignores Aventurine. The fairy can learn patience. Though, he is making quite the compelling argument in indulging.  Ratio runs his tongue along Aventurine’s thigh, watching and feeling how his muscles tense and twitch at every touch.  Ratio may be a virgin, but this man is trembling like he has never had someone on him.

Ratio buries his face between Aventurine’s thighs, all to the symphony of surprised little noises, his nose grinding against the slick folds and the straining little cock as he sucks and licks.

“Shit, you really like taking your time, don’t you?”  Aventurine’s voice is breathless, babbling incoherently as he ruts against Ratio’s mouth.  High noises escape from his lips as Ratio continues to lick and suck, ignoring the slow pull of lust in his own stomach.

No wonder there are stories of time with the fae being accelerated or dilated, if Aventurine is normal for a fae, the world seems all the slower as he drinks deep of this honeyed chalice.  

Everything is a temptation, hearing these desperate noises, the wet, obscene sounds and explore it all.  Ratio wants to ruin this man, coax to stay.  Ratio could spend a lifetime here and not get bored, drawn away from these hallowed halls if he could teach pleasure.

All too soon, sharp, desperate breaths and gloved hands gripping Ratio’s hair make it clear that Aventurine is close, his heart beating like a trapped bird.

Almost there, yet…  Ratio traps Aventurine’s hooded clit between Ratio’s fingers, holding it still as he leans back to marvel at the sight above him.  

A gorgeous, flushed face, the sheen of saliva from drool, his scar-cupped chest heaving, and so, so tight around his fingers, Aventurine looks like a masterpiece.  There is just one last thing 

“You already gave it to me.  Kakavasha.  That is your name.”

The man’s heartbeat is rapid, his breath sharp, sounds closer to orgasm, and there, Ratio goes in for the kill, driving his fingers against Aventurine’s clit from within, pistoning as sharply as possible to push Aventurine over the edge.

Ratio is rewarded with the way that the fairy’s back arches, his face tilted upward as he shouts out an orgasm, his body velvet hot and tight around Ratio’s fingers.  The triumph and the heat around him causes a cascade, Ratio feeling the knot of tension in his stomach, he grinds the heel of his hand against himself, leaving an uncomfortably sticky sensation between his own thighs.

Slowly, surely, their breathing falls back to a sedated rhythm, Ratio carefully helping Aventurine slide down the wall, both sticky from sweat, and the fairy’s legs trembling from his orgasm.

Aventurine laughs, his voice high and breathy before he coughs, clearing his throat.  “That was pretty great.  Though, I caught onto your scheme when you deactivated my watch.”

Ratio rests his forehead against Aventurine’s brow, squinting into his eyes.  “Then why have sex with me?  That gave her the chance to run off.”

Aventurine pouts, his pointed ears drooping down slightly.  “Because you guessed right, I do have her passport in my jacket. Besides, you’re hot, and the probability theorem you were working on, in regards to the risks taken depending on exponential versus incremental growth, got my interest. Though, I think you’re ignoring the environment a bit too much?  Still, I figured, ‘oh, if I am going to make sure this girl passes, I might as well find out more.’  Your forte is definitely more in mathematics, not so much the human-driven work, so I’m interested in more of your angle.”

The comment is like— Ratio can not call it a slap to the face, but it certainly grabs him by the short hairs.

“That old paper?  How long have you been keeping up with my work?”

“I was reading up on your stuff because I had to tutor that girl.  She had wanted to spend the whole time just admiring your looks.  Can’t blame her, but she begged me to make sure she passed.  So I have been, but well, she has not been very cooperative.”

Realization dawns on Ratio, “By making sure she studied and that she didn’t run.”

“Now you’ve got it,” Aventurine nods with a grin as he finishes getting dressed. “You being easy on the eyes and covering something interesting definitely made it easier to decide.”

“You might as well keep her passport. She is not going to be passing the class this time around,” Ratio points out as he pants for air.  “The only way that she would have passed if she had done perfectly on the exam, including the extra credit, she has done that poorly in this class.  Does that not mean you have to stay to ensure she gets it right the next time?”

Aventurine lies there with a dazed droop to his head, eyes glittering under his eyelashes.  “You make a good point,” Aventurine flashes a grin. “Why do you think I was fine with letting you try seducing me?”

“But… Oh,” Aventurine checks the watch on his wrist.  “We’ll have to wait another day for that.  I shouldn’t be running the clock more than I already have.”

A peck on the cheek and the doctor jolts awake on the floor beside his chair, next to the door, as if he had actually dozed off.  Indeed, he finds himself alone, even that wayward student having left.  Once he gets up, well aware of the mess in his underwear, he spies a rectangular business card made of stone on the table, with both florid text and something written in black permanent marker in a more practical script — ‘see you next term, professor,’ accompanied by a winking face.

Ratio sighs, rubbing the bridge of his nose.  The next semester is going to be more interesting than he expected.

Notes:

This fic is why I am engaged.

My partner and fiancé was the person I consulted for these two idiots for this, and while we had been friends for years due to Tartali, and I liked them, neither of us wanted a long distance relationship and I was happy being their friend, so why mess it up? I started to enjoy the ship and happily screamed with them, running about and hearing more and so on, seeing parallels and discussing things.

I got a haircut looking like Ratio's and sent a photograph of me just beaming to them, and that's what made them snap. Took them a few months to confess, but when they did, well, my answer was "Oh good, it's mutual," and it's been wonderful the whole time, including the arguments.

So yeah, bleep you, Dwyn and Mav. You two are why I have a ring on my finger.

And love you, Gabi. Do stay alive.