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fratboy! eren x nerd! armin x reader

wc: 2.2k

tags: college au, m/m/f , smut, college frat party, alcohol use, smoking, threesome, double penetration, double creampie, degrading, face-fucking, tongue piercing, anal, voyeurism, semi-public sex, rough sex, oral fixation, smut with some plot, dirty talk, nipple play,dom/sub, hair-pulling, semi drunk fucking, some fluff. etc.

Somehow, you ended up at one of the biggest college parties you’ve been to in a while. 

One moment you were taking shots with your closest friends, next thing you know…

You end up in a bedroom alone with no other than Eren Yeager and his best friend Armin Arlert…

How did you even end up in this predicament? 

  ⋆⁺₊⋆ ━━━━⊱༒︎ • ༒︎⊰━━━━ ⋆⁺₊⋆ 

Loud EDM music blasts throughout the house, the bass thrumming beneath your feet. Strobe lights flickered like lightning in a storm, the crowd pulsing with energy—sweaty bodies pressed together, cheap perfume and even cheaper liquor saturated the air.

Why did my friends invite me to this shit…

You weren’t planning on staying long. Just a little pregame with your girls, maybe flirt with that cute sophomore from your bio lab, then Uber home before the real chaos starts.

But chaos always found you first.

Leaning against the kitchen counter, you kept an eye on Sasha and Mikasa, trying to seem like you weren’t babysitting them. At the same time, they cackled over another round of tequila shots. That’s when you feel a light tap on your shoulder.

“Hey, can I pour you a drink? Looks like you need one,” the man offers smoothly. Confident.

Turning around, guess who you see? Eren Yeager is one of the people hosting this party. The name alone is enough to make some girls weak in the knees and others swear him off entirely. You weren’t sure which category you fell into. 

Your brows lifted. “Didn’t expect you to talk to me tonight,” you said, lips tugging into a small smile before you could stop yourself.

He laughs, already grabbing shot glasses. “You seemed bored. And clearly, you need a drink if you’re going to be posted up like security for Sasha and Mikasa all night. Someone’s gotta save you.” he tilts his head, grinning as he pours out four shots of vodka.

Before you could respond, another familiar voice chimed in behind him.

“Eren, pour out some more? I could use some.”

Armin. Armin Arlert, his blond hair slightly tousled, cheeks flushed from the heat and crowd.

You blinked once. “Didn’t expect to see you here.” 

Armin’s eyes found yours. He smiled, warm and quiet. “Same to you. Thought parties weren’t your thing.”

“They’re not,” you admitted, knocking back the first shot. The burn made your throat tighten—but the second went down easier. “Sasha and Mikasa dragged me here. told me I needed to ‘socialize more.’” You rolled your eyes, smirking slightly as you licked your lips.

Eren watched with interest. “You’re really full of surprises.” 

You shrugged, playing coy. “I like to keep people guessing.”

The three of you lingered there for a bit, the music thudding against the walls. And then Armin leaned in, voice low.

“It’s getting a little crazy in here. You two wanna go upstairs and smoke?”

“I’m down,” Eren said easily. Then he turned to you. “Coming with?”

You hesitated for half a second, caught between logic and curiosity. But the way Eren looked at you—half-daring, half-inviting—made the choice for you.

“…sure,” you said, a slow smirk curling on your lips. “I could use a cigarette right now.”

⊱༒︎ • ༒︎⊰

The three of you made your way through the crowd. As you walked up the stairs, you suddenly became hyper-aware of the way your miniskirt swayed with every step. You could practically feel their eyes on you.

You didn’t dare look back. But your pulse quickened.

“In here,” Eren said, opening the door to a spare bedroom. Armin heads in first, moving to crack open the window, letting in a welcome breeze. 

“We can just share for now,” Armin offered, pulling out the cigarette pack and holding one out to you. 

You accepted it, fingers brushing his. Eren steps in front of you, pulling out a lighter. “Here, let me.”

He leaned in close, lighting it for you with a quiet flick. His eyes didn’t leave yours as you inhaled. “Thanks,” you said softly, exhaling the smoke out the window.

Eren grabs it from your fingers, placing it between his lips—his mouth where yours just were. Then he turned to Armin, passing it along like an unspoken secret.

He tilts his head back, letting the cigarette rest lazily on his lips as he continues to finish what remains. 

You talked for a while—half-dazed, half-drunk on proximity. The bed was too inviting to resist, and eventually, you all ended up sprawled across it. The tension was thick enough to touch.

And then you felt it—a hand on your thigh. 

Light. 

Teasing. 

You shivered. 

Your gaze snapped to Armin, who was watching you with a look that was both soft and burning. His fingers lingered just a second longer. You opened your mouth—but before you could say anything, Eren’s gaze caught yours.

He didn’t look surprised. In fact… he looked like he’d been waiting for this.

The tension in the air between the three of you could practically crack a mirror. 

You laughed under your breath. “Just kiss me, if you really want this,” you said to Armin, voice breathy and seductive.

His hand curled against your face instantly. The kiss was hot, eager, desperate, like he’d been waiting to taste you for years. You whimpered into his mouth as his tongue brushed against yours, the cold metal of his tongue piercing sending you into a daze. 

You broke the kiss, breath ragged, slowly climbing into his lap. His hands found your hips, holding you firmly. “You don’t know how badly we’ve wanted this,” he murmured.

“Oh, she knows,” Eren said, settling into the nearby armchair, unbothered as he watched you both. His voice dropped. “Go ahead. Put on a little show for us.”

You felt a wave of heat spread across your skin. But you didn’t hesitate.

You stripped slowly—top slipping off, then your bra—your eyes never leaving theirs. Armin can’t help but groan, hand sliding up your side as he leans in to press his lips to your breast. His tongue circled one nipple, the piercing cold and sharp against your skin, while his other hand groped your other tit. You arched into him, grinding down—feeling how hard he was beneath you. 

Eren exhaled through his mouth, hands resting on his jeans, watching both of you. “y/n, keep your miniskirt on,” he said.

You whined at the command, your body aching for their attention.

Armin’s voice dropped to a whisper. “Turn around. Face him, and bend over. alright?”

You complied eagerly, barely registering the command.

“Mmph fuck,” he murmured, sliding your panties down. You gasped when you felt his dainty fingers tease your soaking cunt—rubbing slow, deliberate circles before finally sinking them in.

You buried your head into the sheets as you cried out. “Oh my god—Armin…”

Looking up, you catch a glimpse of Eren’s eyes, lying right onto yours  

“That’s it. Just like that,” Eren said, palming himself through his pants erotically slow, his voice hoarse. “You love being watched, don’t you?”

You tried to answer—but all that came out were loud, incoherent moans. Armin’s fingers fucked into you with deep, aching strokes, filling you up perfectly. Each thrust makes you clench harder, driving you crazy. 

“You’re being so good for us,” Eren rasped, getting up to stand right in front of you as he unzipped his pants, watching you fall apart between them. “She deserves it, doesn’t she, Armin?”

“So fucking badly,” Armin muttered, grabbing your waist tighter, fingers rubbing against that perfect spot. 

Eren slowly opens your mouth by pressing his thumb to your lips. You part your lips slowly, inching deeper, sucking and swirling your tongue around his thumb, letting out slow, sensual moans— showing him how good you would take it.

Without hesitating, he slips his fingers out of your mouth, using your spit as lube to stroke his erection right in front of you before slipping it right into your warm mouth. You’re practically drooling at this point. 

You do your best to get air before opening your mouth, making deep eye contact before he’s lining the head of his cock up with your lips. 

“Let it go all the way down your throat. You can take it,” Eren coos, making you take him all at once  

All you can make out are pathetic, choked, and dirty wet noises with each thrust into your mouth, unable to control anything anymore, as your holes get fucked endlessly by the two of them. 

On queue, Armin decides to take his fingers out, making you ache for more. 

He slowly starts teasing your entrance again, but not with his fingers this time..

It’s Armin tracing your slit with his cock, slowly slipping it inside you raw, no condom on, just feeling every inch of you. 

“Shitt..” Armin groans out, grabbing your hips, making his fingers dig into your skin. His pace is getting faster by the minute. 

The bedroom was filled with the sounds of loud slamming and muffled moans. 

obscene amounts of drool and messy tears trickling down your face, not knowing how long you can last

You open your watery eyelids only to freeze at the way Eren is holding his phone now…

Is Eren filming this? Feeling your heart racing even faster than ever, yet so aroused. 

“I think everyone should see how slutty you really are, right, Armin?” he says while biting back a moan. 

“Don’t scare her like that, Eren,” letting out a slight laugh under his breath. 

Eren can’t help but crack a smile, looking down at you, recording the way your throat was being so roughly used as nothing but a hole to him. 

Your moans continue growing louder, your body getting tense, you’re gonna cum. fuck.

He takes the hint, pulling your hips down harder, making you feel every inch of him. 

making your vision fade to black, letting out desperate whines as you’re coming down from your high 

feeling exhausted yet so intoxicated, they both pull out, making sure you can catch a breather 

…

“We aren’t done yet, y/n, you haven’t made us finish yet.” Eren is letting out a smile, still having his phone out, facing you 

The intoxication still lingering, you look up at the camera—your hair sticking to your face, makeup smudged from crying, still looking pretty as ever. 

Ruin me. 

Before you know it, you're bent over on top of Armin again as Eren stands right behind you, observing you two…

Armin pulls you in for a deep yet messy kiss, slowly slipping himself in again, making you bite his lip from the friction. 

“God, I love seeing both of you like this.” Eren clenches his jaw, trying to get ahead of himself just yet..

He firmly grabs the miniskirt you still have on, making it get your attention as you see him holding his phone once again. 

“We’re just getting to the good part.” Eren winks at Armin, pointing the camera at the two of you, watching how you sink down onto Armin 

Seeing how wet you are, Eren can’t help but tease you by pressing his thumb against your other entrance. 

Your sweet ass

You moaned against Armin’s lips at how much you enjoyed the feeling 

You can't help but want more... and Eren can give you exactly what you need.

He's always known you had a thing for both of them, especially those countless times you crossed paths with one another. 

Brushing those thoughts away, Eren notices the way you give in so easily 

“y/n you take it so fucking good” exhaling slowly, watching how his dick enters your ass 

You gasp, feeling how your holes are getting completely filled at the same time. 

“Mmph yes that’s the spot eren-“ you plead out, feeling him touching that sweet spot of yours. 

Armin continues to let everything unfold right in front of his eyes. He pushes your hair back, making sure to check if you’re okay. 

You lock eyes with one another, seeing how he stares at you with such lust, yet so much love. 

“You’re too pretty to be a dirty whore y/n,” he grunted out, making his pace go faster yet sloppy.

Eren continues recording, seeing how intimate you and Armin are, he can’t help but feel some jealousy, making him grab your hair to get your sweet attention. 

You’re a bit stunned yet, so turned on from the way you’re being manhandled..

Him having a firm grip on your hair as you’re getting fucked out of your mind, every last drop of dignity you had was gone. 

“fuckk- rough me up even more,” moaning louder, be the second, slurring your words, you barely manage to get out 

Eren can feel himself getting closer, making it hard to control his deep yet needy moans. 

This makes Armin and Eren lock eyes with each other, giving each other a certain signal…

“I’m so close— fuck, you’re so tight.” Eren, inhaling sharply, his pace gets messier 

bucking his hips down one last time before he releases, Armin feeling the way you clench around him so intensely, making him cum at the same time 

The sight of them finishing inside you makes you cry out for them as you reach your peak. All you can hear is Armin’s heart beating out of his chest. 

Eren slowly pulls out, then Armin follows right after, Eren just admiring you as you leak out so much cum 

Prettiest view I’ve seen all night

He tilts his back from exhaustion, sinking into the mattress, dropping his phone beside him. 

You can also feel the exhaustion hit you, feeling Armin stroking your hair while lying on his chest. 

“Let’s get you cleaned up, yeah?." 

…

notes: this lowkey took me WAY too long to finish life has been kicking my ass but i hope you all enjoyed lmk if i should write more more fratboy eren..

nerd! armin x reader (nsfw)

tags: college au, f/m, tongue piercing, semi-public sex, oral fixation library sex, edging, nipple piercing, dry humping, virgin, smut with plot, dirty talk, nipple play, making out, soft dom/sub, 18+, whimpering

The fall semester is nearing its end, and the only thing you’ve been up to is finals, of course. However, there’s somebody else who has piqued your interest lately at the library where you’ve been studying…

Armin Arlert, the library assistant at your college.

Every time you pop into the library for a long study session alone, you constantly manage to grab his attention.

Maybe it’s because of how put-together you always are? Or how good you look in those tiny skirts you wear from time to time?

You’ve had many interactions with him: when you need help finding a book on the subject you’re learning about, or with a question you’re struggling with, somehow he’s always there whenever you need him. You find it cute. Even though he seems somewhat reserved whenever he’s around you. Then again, both of you are somewhat strangers to other. Sometimes you wish it could be more than that…

──────────────────────

“I need to stop procrastinating and finish this damn essay for psych,” you said, heaving a sigh.

“Why don’t you head over to the library instead of staying in the dorm with me and Sasha?" Mikasa offers as she cleans up around the dorm you share. “Plus, once you’re done, we can all have movie night together! I’m dying to have one again,” Sasha chimes in, agreeing with Mikasa.

“Yeah, you’re right. I was thinking about going out in a bit. I just wanna get ready before I go,” you say as you slowly head to the bathroom to touch up your makeup and find a cute outfit to put on.

“Getting ready for the library, I see? Is there somebody specific you’re hoping to see hm?” Mikasa giggles, hoping to get some kind of reaction out of you.

“Maybe y/n is going to pay Armin a little visit,” Sasha teases, giggling with Mikasa.

You froze for a second, thinking about how you’ve been caught…

“How do you guys know me so well,” you sighed in disbelief. Mikasa and Sasha always know when you’re up to something. Maybe Armin has mentioned you when they all hang out… I mean, they’ve all been good friends for years. I’m sure you get brought up from time to time..

“Well, don’t go doing anything stupid. You need to get your finals done, deadlines are approaching way too fast,” Mikasa scolds you a bit for not being on track with your academics.

“I know, I know. I will,” you sigh loudly enough for everyone to hear. You finished getting ready to head out, slinging your tote bag over your shoulder. “I’m gonna head out now, see you later, guys. I’ll send a text in the group chat if I’m coming back late.” Mikasa nods, and Sasha blows you a kiss goodbye, wishing you well on your studies as you hurry out the door.

You finally made it to the library after you grabbed a coffee and a sweet treat, so you’re motivated enough to write your essay.

As you approach the building, you’re eager to see if the blondie is on his shift. Maybe he’s just as eager to see you, too? You shrug away the thought as you enter the building through those heavy wooden doors.

Finally, you enter the library, inhaling the smell of still air and old books. You take the elevator to go to on 5th floor of the library.

…

*ding* you’re here

Stepping out of the elevator, you sigh in relief at how very few people are on this floor. You walk around, looking at shelves upon shelves of books as you look for a secluded place to do your work.

While looking for a spot, you suddenly catch a glimpse of the very person you hoped to see.

His beautiful blonde hair was hard to miss; those sweet blue eyes that make your heart flutter every time he stares at you a little too long, glasses that slide down his nose when he looks down at you. There was no doubt about it. He was already staring at you the moment he noticed you were here.

He smiled when he saw you, waving slightly. Both of you make quick but heavy eye contact with one another. Before you could break eye contact with him, he says, “Let me know if you need help with anything. I’ll be happy to help.” You blush at his kindness but quickly nod and thank him as he goes back to stacking books up on the shelf.

You continue walking and find a seat close enough to be able find him if you needed to. You set everything down on the table, sipping your cup of coffee and resting a bit before you started working. Eventually, you pull out your laptop and notebooks, getting comfortable and ready to start working when you realize, “shit… I forgot my textbook.” You suddenly recall that you left it on your desk in your bedroom, frustrated at the thought since you need it to write your psych essay.

Maybe Armin can help me… You smile at the thought of him helping you out. Eager to find him, you slowly get up, pulling yourself together while you make your way through the narrow walls of bookshelves, hoping to find him, and you eventually do. You find him near the back; the walls of bookshelves tower over both of you.

There he is…You found him organizing more stacks of books, immersed in his own world.

Before approaching him, you stop to admire him..

You don’t know why, but there’s just something about him that you can’t seem to resist, like a moth attracted to the light. You continue walking closer to him.

“Hey Armin, is there any way you guys happen to have this psych textbook? I desperately need it for my essay that’s due on Friday,” you asked.

He startles and quickly turns to you, immediately recognizing your voice. “Uh- y-yeah, yeah! I definitely have it. What was the name of the textbook again?” he stutters, eyes lowered while trying not to make too much eye contact with you. You quickly tell him the name of the book you’re looking for.

"I believe it should be around here… you can follow me,” he says as you continue to thank him for helping you out, which managed to crack a cute smile from him. “The book should be here somewhere…” He ran his slender fingers along the spines of each book he looked through. At last, he does find it and hands it over to you, giving you a small smile. Before you can say anything, he suddenly decides to asks you something.

“By the way, your name is y/n right? Sorry I know that was out of the blue,” he quickly looks down at his feet out of nervousness, hoping you don’t notice. Your heart skips a beat at the thought of him saying your name. After all, you do have mutual friends, yet you’re intrigued who told him about you...

“Yeah it is. Who told you that?” you shoot him a snarky grin as he stammers to explain himself. “Eren actually told me since you dorm with his girlfriend Mikasa. We’re all pretty close friends and I’ve always seen you around a lot, so I just wanted to know…”he starts rambling in an attempt to reassure you so he doesn’t come off as a perv somehow.

You giggle at what he says. Seeing just how flushed he gets when he talks to you, you can’t help but want to tease him more. “Honestly I wanted to get to know you too. I mean… I see the way you stare at me,” you say as you slowly move closer to him.

He realizes what you’re doing and clenches his jaw as he looks you up and down. You see the way his eyes drop down directly at your chest for a moment, lingering before they snap back up to your face. Can you blame him though? You were wearing a low-cut long sleeve top, with no bra underneath as your nipple piercings peaked through your tight fitting top.

He can’t help the fact that his dick twitches at the thought of being this close to you. The air suddenly feels thick and heavy around you, and he’s trying so hard to keep his composure but the way you look at him makes it all that more difficult… you want him and he knows that.

You can’t help but be a bit bold. “Would you want my number? I think you can get good use out of it, no?” you hummed to yourself. He was not expecting that… He looks dumbfounded at what you said, feeling flabbergasted at how blunt you are. He slowly nods his head, not knowing what to say he blurts out, “y-yeah of course.” He shakily hands you his phone. Putting your digits in, you swiftly hand the phone back to him. His fingers accidentally brushed against yours.

You both don’t say anything for a while; just taking each other in for a moment. The tension between you is unbearable. Armin stands there stiff as wood, trying to figure out what to say to you next, but you quickly say something first to break the silence.

“Well I really should get back to my work. Maybe you can find me again once your shift is over?” you grin, waiting for his response.

“Yeah I get off in about an hour so maybe you can use some help, i-if you would like that. I believe I’ve taken the class before too,” he says while trying to keep his cool. Knowing me, I need all the help I can get. You sigh in relief, nodding at his offer.

“Thenn I’ll see you later okay?” winking at him as you slowly turn and walk back to your seat.

“Fuck me…”Armin mumbles lowly under his breath while watching you walk away, getting a good look at the tiny black miniskirt you happen to be wearing. He can’t help but wonder if you’re the slutty type or if you wear a thong underneath your skirts… Pervert. He shrugs his dirty thoughts away and goes back to his work.

You return to where you left your stuff. Finally, you take a seat, trying to concentrate on your essay, but you can’t seem to get him off your mind. I wonder if he’ll actually help me, you think to yourself as you work on your essay.

Before you realize it, two hours have gone by.

It’s 7:00 pm on the dot, and the 5th floor is completely empty by now. You decide to text the group chat you have with the girls.

You: Guys, I’m still at the library I think I’m gonna be here until it closes, it feels like..

Sasha: Nooo we were hoping you could have dinner with us :((

You: I wish but I have 2 more pages to go babes

Mikasa: I’ll save you a plate so you have dinner to enjoy when you get home <3

Sasha: Aw okay we’ll miss you now go finish that essay !

You: Ily both i’ll catch you guys later :3

As you put your phone away, guess who finally shows up?

It’s Armin, of course. As soon as you see him, you give him a gesture to come over. He notices you as he begins to walk towards you. He’s finally off his shift. In his comfortable clothes, you can’t help but stare at him. He quickly notices, making him nervous as he approaches the seat next to you. Quite bold of him.

“Hey y/n, how’s the essay coming along?” he takes a seat, trying not to make eye contact with you as he starts making himself comfortable, pulling out his laptop and his notes. “I’m telling you this is literally torture. How am I supposed to finish a 6-page essay in two days?” you complained. Felt like the exhaustion from all the stress during finals week has gotten to you.

“It’s doable, but at least I can help you out. Can I take a look?” he asks. You move your laptop so he can see what you’ve written so far, without realizing he gets significantly closer to you to get a better look. You feel his knee bump into yours. That’s when he realizes how close he was to you. “O-oh sorry, am I too close?” he asks, ears turning red from embarrassment. “Get closer if you want,” you say, slightly flustered.

As you say that, he leans slightly closer to you, his body reacting first before his mind does. At this closeness, he can smell the sweet scent of your perfume on your neck. It kinda smells like cherries, he thinks to himself. God, he can’t get enough of you. He wants you on him.

The sexual tension between you two gets stronger; it’s just you and him in the library. Forget your essay. It’s such a perfect time for one of you to make a move on the other. Pausing for a moment, you look up at him. “Armin… have you ever kissed anyone before?”

His breath hitched at your words. “N-no, I actually haven’t done anything like that with anyone before,” he replies. “Really…? Not even a little peck?” you teased him. He quickly shook his head no. All he could focus on was the way you’re looking at him.

“Then… can I be your first?” you ask, failing not to burn up at your own words. He freezes for a moment. “I-I mean.. how can I say no to you?” he says, his voice barely more than a whisper. You gently grab his face while staring into his pretty eyes. “Just follow my lead, okay?” you whispered into his ear. He nods. Tilting his head, he’s leaning towards you. Your lips softly brush together, kissing him ever so slowly but desperately. He already lost his composure when you pressed your lips against his. He’s been wanting this for so long.

Armin is a fast learner, though. He’s doing such a good job mirroring your movements to the point where you started wondering if he’d actually done this before… Gaining more confidence, he slowly starts to swirl his tongue around yours, and you feel the slight pressure of his tongue piercing. Oh? It surprised you, the fact that he has one.

Your heart is racing, and you can’t help but crave more. The kiss is getting more intense as he slowly slides his hand onto your thigh, caressing it ever so lightly. You moaned in his mouth, pressing your thighs together from how good he makes you feel. Fuck. If he wasn’t already hard now… he thought, while he breaks apart from the kiss, letting you catch your breath.

He was still grabbing your thigh. “Didn’t expect you to have a tongue piercing,” you said softly as a small smile touched your lips. “Y-yeah.. I kinda forgot to mention that. I hope that wasn’t weird for you.” He swallows hard, throat feeling dry, trying to regain some composure as his hand lets go of your thigh. “No, I enjoyed it. It was really hot,” you murmured slightly, getting close to him again. You put your hand on his chest, gliding it lower and reaching for his crotch. Feeling how hard he is, you gasped quietly.

Armin tilts his head back, letting out a low whine just from your touch. Fuck. He’s so hard it hurts… He clenches his jaw tightly, teeth grinding against each other, thinking about all the things he can do to you while no one’s watching. It’s exactly what he needs to relieve himself. You can’t help but bite your lip, showing him how badly you want it. “You’re such a virgin Armin, it’s cute. Do you want to keep going?” you asked, continuing to palm his erection.

“Yes. Please y/n,” he says as he bites back a moan. With that, you make your move, fixing your bunched-up miniskirt as you slowly get up from your seat. He definitely caught a glimpse of your underwear. “Lace panties? How fitting…” he cooed. Your face turns red at his remark. “You’re such a pervert.” He leans back in his seat, spreading his legs out just a bit. He feels his pants tightening even more at the pretty view in front of him. Armin reaches his hand out for you, and you’re surprised at him taking the lead. You grab his hand, and he’s pulling you straight into his lap.

You’re flustered when he sets you down on top of him, grabbing your waist softly. Immediately feeling his bulge now directly on your cunt, you can’t help but start grinding back and forth on him. Gasps and moans slowly leave your mouth. “You don’t know how badly I’ve been wanting to do this with you,” he whispered. A sudden neediness fills his voice as his hips try to match your pace. He feels how wet you are for him.

Oh fuck. He can cum just by doing this. If you keep going any longer, he might just…

On queue, you slowly stop bucking your hips onto him, almost like you read his mind. “Armin… I don’t want you to cum just yet,” you said coyly. He throws his head back, feeling breathless. “Please, y/n I’ll do anything,” staring at you so desperately with those pretty eyes. “Anything…?” Your adrenaline kicks in a little, continuing the deep eye contact you both make with one another. “You should kiss me slowly down my neck, then you can go from there,” you say in a haze.

“L-like this?” Firmly grabbing your waist, he leans closer, starting to kiss the top of your neck. Not knowing what he’s really doing, he slowly goes lower and lower, nibbling your skin ever so gently, letting out faint moans. “You’re doing so well Armin… you want me to take my top off for you?” you say teasingly as you bite your lip. Without hesitation, he’s already lifting your top off, desperately wanting to see how hot nipple piercings look on you. “Fuck y/n. How do you keep getting hotter,” he murmurs, already grabbing your tits with the cold touch of his hands.

His words send a tingle down your spine as he firmly gropes your chest. Seeing the glare in his eyes you he knows exactly what he wants to do with you. He shudders out a “Can I...?”

Tilting your head, you give him a sweet smirk.

“Go ahead, but... remember what I told you, okay?” He doesn’t even care if you won’t let him cum yet, he just wants to make you feel good..

He exhales, and before you know it, you feel him sinking his mouth in, feeling his tongue piercing glide over your nipple piercing. His tongue circles around it softly as he gropes the other tit.

The feeling makes you quiver, throwing your head back, and blurting out many moans that echo around the library.

Armin realizes how loud both of you have been. He doesn’t stop what he’s doing, though..

“If you’re too loud, we might get caught,” he says between heavy breaths. You can’t help but whine in annoyance. “I hope we get caught so everyone can see how desperate you are to get your dick wet,” you say, biting back a moan as you start rolling your cunt over his hard erection again.

He can feel how wet you are against him through the fabric of your underwear. Armin jolts a little as he hears what you said.

“Y/n, please. You’re gonna make me cum and I’m not even inside you..” he whines. Seeing the desperation in his eyes

The way he’s looking at you is mesmerizing, observing his desire for you

You can’t help but give in. How could you not?

You let him know you’re giving in by slowly smirking at him

He starts grabbing onto you waist again moving your hips up and down rubbing against his cock, his pace gets faster and faster

Leaning towards him now kissing him up his neck, slightly biting his collarbone, leaving him all red

Letting desperate whines from his mouth, he breathes out “ Mmph just like that y/n,” he murmured

You remain calm while continuing to kiss him, leaving a few hickey marks on his neck. His groaning is growing louder and more needy

Armin is not lasting another second of this feeling, his vision fading..

“fuck, I can’t— I-I’m almost-” inhaling sharply, bucking your hips down one last time before he releases, he cums fucking hard. His body jolts harshly from the intensity of his orgasm, his hands gripping your hips tightly as a string of moans leaves his mouth. The sight of him like this makes you cry out, reaching your peak. All you can hear is the sounds of your breathing as you come down from your high.

Armin feels his body limp, hair sticks to his forehead from all the sweating. After catching your breath, you feel a wet spot underneath you, realizing you made a mess in his pants and realizing what he just did.

You stop to look back up at him, arching your back lightly as you feel the pool of wetness under you. "armin, did you just cum? I guess you really are a virgin," you tease him.

"Shitt," he says, deeply gasping for air. You lean towards him, putting your head on his chest. As you both try to catch your breath, exhausted, you say, "We should do more of these study sessions. I have a thing or two I can teach you." You giggle, and his face turns red from embarrassment. Soon after you say those words, you both hear an unexpected *ding* from the elevator.

Hearing someone walking inside the building, both of you freeze in place, staring at each other. Remembering you're still in the library, you both realize you aren't alone anymore..

Oh god, if anyone sees you both as a hot mess and you on Armin's lap, both of you are done for. You swiftly hop off his lap, pulling your top back on, fixing your lifted miniskirt. As you do, you finally get a good look at the mess you made all over his pants.

You turn your head away, noticing he was also staring down at his pants.

You sit back down next to him, keeping your composure as he leans back in his chair, wiping the sweat off his forehead, fixing his messy hair, and cleaning off his glasses. You can help but stare, seeing how good he looks after practically ruining him.

"Should we get back to working on your essay?" he whispers, giving u a soft smile.

…

notes: I hope you enjoyed! this is my first time writing something like this so lmk if should more like this

update 8/11: sorry for the long awaited update life has been ROUGH but thank you for all the support on my first fic recently uploaded a new work abt nerd armin & fratboy eren check it out if you enjoy this one <3