Warnings: Suggestive Themes, Switch!Reader, Friends to Lovers Trope & Lovesick!Riri

Pairings: Riri x Black!Fem!Reader

Summary: In which, two very close friends discover something more beneath their flirty banter while studying for final exams.

Word Count: 2.5k+

Author's Note: Requested on my Tumblr account. Don't know how this went to a cute fluff with a hint of smut, but anyways enjoy.

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Christmas break was just peeking around the corner. As always, you were ecstatic around the holidays, but there was always a downside to students' happiness, and that was final exams.

Luckily you had a study buddy to revise all of the exam outlines with and her name was Riri Williams. Besides being study buddies with Riri, you two were close friends and would often hang out whenever you had the free time to do so.

To be honest, studying calculus was never interesting or fun. In your opinion, calculus was just an unnecessary factor of a class continually weighing you down, nevertheless, you still strived for academic validation from others, including your family.

Since it was crucially essential to her career path in engineering, she resulted in being the top student so she offered study lessons for calculus, personally for you. Of course, they were free of charge to you, it was certainly, one of the benefits of being her close friend, but anyone else would have needed to pay upfront, with no excuses, and no refunds.

Without a second thought, you accepted the kind offer, and three days a week, you found yourself cozied up in her dorm room, faint music breaking up the calm aura as you two munched on brain food and quizzed each other.

Aside from the free lessons, you explored new boundaries with your friendship with the Williams girl. By now, you were accustomed to her flirty banter towards you and frequently snided back with coquettish remarks of your own.

Mind you, your friendship never strayed away from a platonic one. Even though some stares and touches lingered on longer than necessary, neither of you disclosed the imaginary line that you were both crossing.

A playlist of Pentatonix played softly from the speaker on her desk while numerous textbooks, binders, and highlighters were sprawled out on her king-sized bed.

You were reading over the basics of calculus to get a refresher on the concept, regardless, the technique was deemed useless.

The printed words and numbers started to become hazy and jumbled up, an headache was about to form if you went any further. So you closed the book which made the forming headache vanish.

You couldn't help but release an exaggerated sigh, breaking the semi-quiet atmosphere, and looked over at the girl before you, who seemingly ignored you as her eyes scanned the words in her textbook.

The Williams girl liberated a deficient hum and a partially raised eyebrow but continued with her studying, enlightening that you had her exact unwavering attention.

If you weren't so annoyed at Riri, you would have taken the time to see how gorgeous she looks while working in the zone.

It was cute to see Riri completely absorbed in that brilliant mind of hers, blocking out all of her surroundings and just focusing on herself at the moment.

So you decided to try it again; this time more emphatically heard. Slightly puffing out your chest and the longest exaggerated sigh released from your mouth.

Then she stares up, her concentration from the textbook completely diverted onto you, looking completely unimpressed by your antics. "Yes, [name]."

A small pout settled on your lips. "I'm tired of this, Riri." You annoyingly whined as the said girl returns with a blank face, glaring slightly at your pettiness.

She wouldn't have cared less if it was from anyone else, but it was you, her girl. And she wanted her girl to achieve the A that she surely deserves.

"Come on, ma." She shuffled closer to you, her hand rubbing your thigh gently. "Fifteen more minutes of this and we'll go to Chipotle, my treat, promise."

She knew that you wouldn't be able to resist food, especially if you weren't paying for it. However, her plan with bribery of food deflated when you playfully rolled your eyes at her suggestion.

"I can't help it..." you sighed, flinging the highlighter onto the open textbook and letting your back hit the soft pillows. "I'm bored and it's causing me a headache."

"Kay how about this," she proposed, closing her calculus textbook as she pondered on her idea and composed herself upright by sitting on her knees, "I give you a kiss for every correct answer you give me."

At first, you remained silent, until a yelp escapes your lips when two strong hands dragged you by your thighs pulling you closer to her.

Hesitantly, you peeled your eyes open to stare at Riri, who was devilishly grinning at your embarrassment.

Gazing down at you, solely impressed by this new position; with her between your legs. "Do I need to repeat myself, sweetheart?"

Now that caused you to perk your head up slightly. The nickname unusually stirred up butterflies in your stomach, whether it was the tone of her voice or her nickname choice, you couldn't tell the difference.

"What's the motive?" You inquired, sitting up slightly. Finally, something that was a tad more interesting than rates of change.

"Does it really matter, [name]?" She deadpanned before panic took over her features. "Oh shit, are you already seeing somebody..cause this–"

"No, it's not that." You chuckle lighting, reassuring your frantic friend as you halted her movements with your hand on top of hers. The Williams girl paused at your hand placement, her eyes glancing shortly at the contact and looking up back at you.

It was rarely often that you witnessed your dear friend Riri so flustered in a matter of seconds. Maybe, you should make this a regular thing, just for the thrill of it.

"Well, what do you mean?" She inches closer, now you were the one to get flustered. The proximity lacked no room for space as her breath fanned over your shortened breath.

Up close, you've never realized how beautiful was really was. She knew what she was doing, her cocky smirk gave herself away in no time, and you couldn't just see yourself escaping her enticing trap.

"Like, y'know if this will affect our friendship?" You shrugged your shoulders, avoiding eye contact to conceal the embarrassment flooding your cheeks as you bit your lower lip in anticipation.

It was always nice to be aware before jumping headfirst.

"Oh..." she trailed off, her brain only allowing her to process and function one word. For someone so smart, she didn't think this all the way through.

Such a big shocker, right?

Taking into consideration that she might be compromising her options to move forward, she didn't have anything to lose. She acknowledged her feelings for you a few weeks earlier, rather preferring to remain silent on the option of confessing.

Moving from your current position, you sit upright, facing her.

Immediately her confused expressions decipher into a smug one, "Well, it doesn't have to...if you don't want it to." She leaned closer, silently rejoicing when you didn't retaliate.

"Good thing I don't want it to then." You whispered out, your eyes connected with her eyes before adjusting onto her lips. Suddenly she licked her lips slowly, once she made sure that your attention was fully on her.

Suddenly her voice broke out in a rasp. "Let's get started, shall we?" Nodding in agreement as she grabbed her calculus book from beside her, mildly taking her eyes off of you.

Oh, two can play at that game.

"What are the 4 main concepts of calculus?"

Just to tease her, you jutted out your bottom lip as you began to answer, "Limits. Differential calculus. Integral calculus and multivariable calculus." Too bad that Riri's focus wasn't on your little teasing but on the answers, the correct answers.

Due to her prolonged silence, she resolutely decided that one question would suffice and discarded the heavy yellow textbook from her hands.

Riri was a bit hesitant at first to kiss you. It was rather stupid anyway, she was the one with the so-called brilliant plan so why couldn't she execute it?

She had dealt with one-night stands before, so kissing wasn't exactly that foreign to her, she just felt suddenly shy when you were the other recipient.

Being completely vulnerable to you was a new thing to Riri, likely being considered stubborn, demanding, and too cocky for her own good amongst her classmates, but it felt surprisingly comfortable to step out of her comfort zone.

Being a coward was not known in Riri's vocabulary and it wasn't going to be an exception this time.

With a shaky exhale, her hand softly caresses your face as she shuffled closer and slowly her lips connected with yours. Feeling giddy when you tenderly reciprocated the kiss back, she became bolder as she deepened it.

Riri smiled into it, needing more but lacking the resistance to keep her control to a minimum. Although she is sure as hell, she can definitely finish what she started.

But she wanted this memory to be unforgettable, for both of you.

The connection of your lips was a glorious combination of soft, sweet, and sensational, and by the eagerness of Riri's hand placement, it seemed that she was already compelled into the kiss way before you.

Perhaps it was the way how Riri gripped at your hips before seductively pulling you onto her lap that made your mind blank and all numbness form below your waist.

"You don't know how crazy you drive me, ma." She breathlessly confessed once your lips disconnected.

Seems as if she was holding that down for a while.

"Yeah," you challenged, dragging her lips away from yours, holding her dilated eyes with your hooded ones, "and exactly how crazy do I drive, riri?"

By receiving silence, your two fingers pick her up by the chin, forcing her to look directly at you. In a sense, you can see her eyes are frantic to glance back.

Taking her by surprise, you rocked your hips onto hers with a rhythmic pace, starting off slow and easy. Soon enough your hips sped up by the encouragement of Riri's whimpers and a tiny mixture of your own.

"Crazy enough for you to take a bullet for me?" Your movements sped up causing your girl to loll her head backward, not replying to your question.

You hated being left in the dark, it just irked your soul to the core.

Grabbing gently the nape of her neck, you pulled her to look at you, "Look at me when I'm talking to you, ri."

"Ma..." she lowly warns. "Don't start something that you know damn well you can't finish." Her warning tone ends with a growl, trying to muster up her moan.

Generally speaking, Riri was used to being the mean dom, and nobody was meant to take that role away from her.

Perhaps today that might just change.

You feigned innocence, moving your hips painfully slow. "I don't know Riri, you seem to be enjoying this a little too much." Lightly pushing her against the bed and removing your shirt to reveal your blue bra.

In an instant, her lips ferociously were on yours, but your rough thrusts against her pelvis didn't halt, even once.

"Tell me Riri..." her hands fondle your breasts as you unhooked her bra. "Do you want me to stop?"

You've rendered Riri speechless for this first time and the sight was particularly captivating. Her low guttural moans and short pants with her grip keeping you directly in place were enough to spur you on, enough to resume your teasing on her lap.

Nodding her head in disagreement as you released a low chuckle in the room. "Imma need a verbal answer, baby."

Unfortunately for you, that's the best she could've done, her pride was just too far out for you to even reach.

Unmistakably, she thought that her good friend [name] was a brat bottom but apparently she was mean!switch, now receiving the other end.

"Ma...please." Her begging erupts into a sharp gasp as she witnesses you go down her breasts and start teasing the hardened brown buds with your tongue. "Please don't make me beg for it."

"That doesn't sound like a yes or no answer, ri." Retracting your mouth from her breasts and she lets out a whine. "Looks like we'll have to finish this another time."

It was right on the tip of her tongue but her sanity was preventing her from doing so, reluctantly she decided to just go with it. Besides she'd have plenty of time to get back at you for leaving her high and dry.

"You still up for some Chipotle?"

Just because she endured your agonizing ridicule of her that doesn't mean she'd be experiencing her bratty side more often.

You chuckle, "You know it."

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After enjoying eating out, you and Riri headed back to her dorm. Before you could have resided fully in the room, your girlfriend tackles you from behind as you released a delightful squeal, safely landing on the bed.

Facing each other and laying down on your sides as you locked eyes with each other. Staring at you in amazement, already envisioning your future together as a beaming smile appears on Riri's face.

"I'm so happy to call you mine, now, baby."

"As am I, sweet girl."

Still shocked by your new relationship status, she conjoined her lips with yours in a feverish manner and switched positions, hovering her body over yours, her legs entrapping you at your sides as she positioned you on your back.

To drown out her palpitating heart, she intertwined her fingers with yours, outreaching your arm's length above your head, squeezing the grip for the easement.

"So all of that kiss for each correct answer was a decoy?" You questioned, quirking an eyebrow at the girl above you once you pulled away from the passionate kiss that you two shared.

"Uh huh, and you were dumb enough to fall for it." She cockily smirked as her lips swiftly attacked your neck.

Giggling in adoration as your girlfriend painted your neck with soft kisses, each kiss sending a tingling sensation in your abdomen and a reminder of two promises that she swore to keep.

It was an absolute mixture of wanting to savor the moment in its prime and Riri assuring you that she'd be here through thick and thin along your side.

As your relationship began to flourish, the ethereal feeling of calling you, her girlfriend, never subsided. Nor will it ever subside, not if Riri had any insight about it.

Who knew studying for calculus would get you an intelligent girlfriend in return?

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© letitiaslcverr, 2022. please do not plagiarize any of my works.