━━⠀⠀TEMPORARY CHEMISTRY ; e. yeager (chapter six)
modern!eren yeager x fem!reader
summary: you have a crush on jean kirstein and your friend eren yeager has a solution: fake date him to make jean jealous enough to notice you. unfortunately, eren is very good at pretending to be your boyfriend.
words: 3.3k
part: 6/? (pt 1) (pt 2) (pt 3) (pt 4) (pt 5)
content warning(s): modern au, college au, frat boy eren, mentions of drinking and doing recreational drugs. mentions of sex. eventual smut. no so slowburn. friends to lovers. porn with some plot. minors dni.
chapter specific warning(s): a bit more jean/reader (nothing really substantial), angst, p in v sex, dirty talk, eren brooding
author's note: another (mostly) filler chapter. next chapter will be crazy long, so this is to hold you guys over until then :) BIG things happening next chapter.
Eren sat in Mikasa’s passenger seat, watching the lights of the city pass by while she drove Armin and him home from the club. He leaned his head against the glass, eyes closing for a fraction of a second. When he did, he thought back to the bathroom, the way you said you two had to talk, the moans that spilled from your lips. He licked his own, he could still taste you.
“You kept us there so long,” Armin complained in the back seat, kicking the back of Eren’s chair. “Where were you anyway?”
Eren rolled his eyes. “Bathroom line was long, Min. Don’t worry we’ll get a book in your hands as soon as we can.”
“That’s not even the point.”
Mikasa was silent as they pulled up to the Acacia house, parking on the curb and glancing over her shoulder watching Armin practically fling the door open and walk to the front door. Eren looked at her with a grin. “Thanks, Mik, you’re a lifesaver,” he said as he went to open the door. Mikasa pressed the lock button on the car, effectively keeping him in.
Eren huffed. “What?”
“You can stay,” Mikasa said in a matter of fact tone.
“Didn’t ask?”
Eren leaned over her to undo the child lock beside her, earning a hard smack to the back of his head. “Jesus what the fuck!” He yelled, leaning back in his chair. “What the fuck did I do to deserve that?”
Mikasa hit him again then pushed his shoulder. “What the fuck is wrong with you?”
“What the fuck is wrong with me? You’re the one hitting the shit out of me when I just want to go the fuck to bed!” He shouted, throwing his hands up in the air to defend himself in case his sister wanted to hit him again, though it seemed like she exhausted the message she was trying to send. Though that lasted a few seconds before she hit him again.
“You came up with this stupid thing with her and she told me that now you’re acting all weird!”
Oh, so this is what it was about. The fake dating, how he had practically ghosted you this entire week after the incident on the dance floor that he was still pretending he didn’t remember. Mikasa stared at him the same way that she used to whenever he tried to brush things off, the first time being when he came home with a broken arm at eight years old trying to convince his father and her mother that it wasn’t that big of a deal.
“I’m not acting weird,” Eren deflected. “I got her the date with Jean. I’m a genius.”
He reached for the door handle again, which he found was still locked. “Mikasa.”
“No.”
“Mikasa.”
“No.”
“Mik —”
“Eren.”
It was the way his sister said it that made him immediately shut up. Eren ran both of his over his face. His head and stomach hurt and the last thing he wanted was whatever intervention Mikasa was trying to stage in her car at 3am. “You wanna know what’s really annoying?” Mikasa asked him, tilting her head to the side to keep eye contact with him.
“No,” Eren said.
“Well I’m going to tell you anyway.”
Eren groaned, leaning his head against the front of the dashboard, his brown hair falling to frame his face, closing his eyes as if to pretend he was falling asleep so he could get out of this conversation as quickly as possible. Mikasa didn’t let up or give him any mercy like always. Her fingers curled against the steering wheel, giving a sigh. “You’re acting like it doesn’t bother you when it clearly does,” she said, as if it was the most obvious thing ever. “And before you say it doesn’t, just remember that I’m your sister and we’ve grown up together so I know when you’re lying.”
He leaned up. “So what if it does? It’s not like it makes a difference.”
“It does make a difference,” Mikasa said. “She cares about you.”
Eren let out a tiny laugh. She cares about you. Of course you cared about him, you’d been friends for years, so many years of birthdays and Christmases. You would answer his calls whenever he got stranded somewhere and he didn’t want Mikasa to know he was too drunk to get home. You were the one who pushed him to join a frat and get him to apply to this college in the first place. He’d known you so long that he couldn’t even remember a time where you weren’t a part of his life. So, yes, he knew that you cared for him. But why did the way that Mikasa say it make his mood sour? He cared about you too. He wanted you to be happy, and if that meant being with Jean, he was fine with that. Right?
“I know she does,” Eren spoke, a bit quieter. “We’re friends.”
“Then why are you making things weird?”
He didn’t know why he was making things weird. He didn’t know why he had been dodging your texts just to follow you into a club bathroom for almost twenty minutes, going down on you like it was his only lifeline. Eren had never acted like this before in his life. He always knew what he wanted, especially when it came to girls. He didn’t sit around wondering what they felt about him, it had always been simple. There was no overthinking and definitely no following somebody in a club, desperate to get their attention because seeing them with another person made him want to rip his heart out and stomp on it till it stopped working.
Eren needed to stop this. He needed to figure out how to stop feeling like . . . this. Whatever this was. He needed it to stop now, before it grew roots and infected him and eventually rotted deep in his chest. Eren knew where this road would end if he didn’t pull back now. Misery and embarrassment for starters, and ruining one of the longest and most important friendships of his entire life.
You liked Jean. Jean clearly liked you.
“Fine,” he said, finally looking towards Mikasa again.
“Fine?”
“I’ll back off,” Eren elaborated, glancing at a group of drunk sorority sisters passing by. “I’ll let her be happy.” He felt as though he was swallowed glass the moment it left his mouth
He remembered what he said to you. Just admit that you were jealous.
The irony was not lost on him.
you: do you remember what citation format we need to use?
You stared at your phone, rereading the message you had sent to Eren two hours ago. Cross-legged on your bed with your laptop sitting forgotten on your legs, you wondered what was wrong with him. It had been three days since what happened at the club. Usually you would’ve gotten a text five minutes after you sent it, not two hours. He’d say something along the lines of I don’t listen in class and I’ll ask Armin tho and add an offhanded comment about something that happened to him that day. Now? Absolutely nothing.
You were able to type three sentences before you sighed, leaning your head against the headboard. It seemed there was no use in getting anything done when Eren wouldn’t — Buzz.
eren yeager: APA i think
There was no text bubble underneath it. No follow up text either.
you: thanks
eren yeager liked your message.
It shouldn’t have bothered you as much as it did. Though, that seemed to be the mantra of your entire life these past few weeks you had been spending with Eren. Everything about him bothered you now, not even just the normal bother that came from being friends with him for so long. You hated the way he looked at you, but you hated when he didn’t look at you. You hated when he texted too much, but you hated when he didn’t text at all.
jean kirstein: wanna go to lunch wed? can’t do tmr : ( i’m sorry. chem kicking my ass.
Even through your annoyance at Eren, you smiled at the message. He’d been a welcome distraction from all of this, and you did really feel yourself warming up to Jean as much as he was to you. He used to be such an unattainable thing to you for months, just the crush you watched on the sidelines. Now, Jean was texting you, taking you on dates and kissing you. It makes you feel happy, warm inside.
you: sure : ) np
jean kirstein: cool
jean kirstein: pick u up at noon?
you: perfect
jean kirstein: no that’s all u
Goddamn this girl wouldn’t shut the fuck up, Eren thought as his hands came to grip the hips of a girl he’d met from Tinder two hours ago. He thrusted again, hands kneading the soft flesh of her ass and giving it a hard smack. She moaned, practically keeling over on his bed with her head stuffed into his pillow. Sweat beaded along his brow, sticking strands of his brown hair to his face while he continued the punishing pace into . . . What was her name again? Anna? Amelia? Something with an ‘A’ for sure. It wasn’t like he could ask now without pissing her off, and Eren was really just trying to forget for at least two hours about you.
“Feels good, baby,” She moaned, arching her back up in an obvious display to have him hit a deeper spot inside of her. “Feels so good, right?”
Eren stayed silent, the only noises coming out of his mouth the occasional grunt and low moan. Yes, it did feel good but it really didn’t feel that great. It felt stupid and meaningless, something that had never bothered him before. In fact, a month ago he would’ve been putting his all into a hookup, he’d spend an hour between her legs for a good hour for nothing but love of the game.
Now, it just felt stale. Though, the feeling was better than what he felt when he opened his phone up two hours ago to a picture of you and Jean on Jean’s Instagram story, a soft expression on your face with your head leaning against his shoulder, the caption ‘sushi date’ in large letters. It pissed him off so much that he immediately closed Instagram and opened Tinder, swiping right on practically every profile he saw until he got a hit. It was easy to find girls down to fuck on a college campus, and for Eren it was even easier.
Like he remembered where he was, his eyes shot back from their dazed off position and he picked up the pace, one hand moving up to grab the girl's long blonde hair and pulling it between his fingers. For a moment he looked down at where his dick was practically bullying her pussy, realizing that it wasn’t doing any better at trying to make him cum. Fuck he needed to get this over with before people started calling him a limp dick on campus or something.
It was wrong, incredibly wrong for his eyes to land on the pair of your panties that he had stolen from the club that now sat on his dresser, partially forgotten but he knew it was there every time he walked into his room regardless. He hadn’t given them back to you because, well, he was trying to avoid you and it’s not like he could hand them to Mikasa to give them back. That definitely crossed some type of boundary. Eren was shameless, but he wasn’t that shameless.
Eren’s eyes closed then, leaning into the feeling of the girls’ walls clenching, nearing her own orgasm. He didn’t care anymore about his stupid pride, he needed something, anything to cum. So, he started to think back to your moans, those sweet, downright sinful moans that left your mouth when he was on his knees for you. How your fingers slid through his hair effortlessly, pulling him closer like you didn’t want him to ever let go. He wondered what you would sound like now, if the girl was you. You’d probably arch your back deeper, hips slamming back to meet his, reaching for that pleasure that he would willingly give you.
Well, the more he thought about it, he wouldn’t want you to be facing away from him. Eren would want you on your back, staring up at him with your pretty mouth open while you whined his name. That way he could see exactly how he was affecting you, how much you wanted him to give you everything he could possibly give. He’d praise you for taking him so well, hand sneaking down your stomach until his fingers landed on your clit, rubbing harsh circles to make you louder. And you would take it, walls clenching around him, gripping him like you wanted to keep him there forever. Eren would be there forever, he would want to be there forever. He’d fuck you for hours, as much as you wanted, making you cum until you forgot your own name.
The thought of that had him moaning loudly, dick throbbing as he spilled himself into the condom, chest heaving while he tried to catch his breath, leaning against the girl's back. She said something, but in his haze he couldn’t listen, thrusting shallowly a few more times to milk himself of everything. Then he pulled out, pulling the condom off to throw it in the trash. With hookups, aftercare wasn’t very important to him, which he knew was wrong, but typically the girls would want to leave fairly quickly. He didn’t need to do anything, didn’t have to say a word, because the girl was already crawling off of the bed, searching on the floor for her clothing.
Once she did, she walked up to him and leaned in for a kiss, which he deflected by turning his cheek to have her kiss that instead. “Oh,” she said with a sheepish smile. “Sorry. Can I go to the bathroom?”
“All yours,” Eren said, motioning to the closed bathroom door and watching her disappear through it. He threw on his underwear and black sweatpants back on, hands running through his hair, still a bit breathless. As if he wanted to continue punishing himself, his hands grabbed for his phone, opening Instagram again and seeing your profile picture surrounded by green, signalling you had posted to your close friend the story that he was on because he was your close friend. Just your close friend, he had to remind himself.
When he clicked on the story, he saw a picture of the sunset along with hands clasped together, a song he didn’t recognize playing in the background. He didn’t need a degree in English to read between the lines. You were still with Jean, having some romantic whatever the fuck. He wanted to scream. This was so stupid.
The bathroom door opened and the girl walked out. “We should do this again sometime!” She said, giving him yet another smile.
Eren forced himself to grin. “Yeah, sounds good, I’ll text you.”
He definitely wouldn’t. When he went to go unmatch with her on Tinder he saw that her name was actually Ava. Not that he really cared anyway.
reiner: don’t forget guys it’s formal this weekend
marco: are you fucking srs i don’t even have a date why didn’t u tell us sooner
reiner: it’s quite literally been on the calendar for months
connie: its ok marco i’ll be ur date
marco: hard pass
connie: boo hoo you’re just mad u and jean wont pull up together
jean: con leave him alone
mikasa: historia and ymir are coming too i saw them earlier
sasha: LETS GOOOOOOOOOOO
Leaning against the wall of the gym, watching Mikasa lift while you pretended you were looking up workout routines on your phone, you were watching the conversation play out. You’d completely forgotten that formal was this weekend earlier, until Jean asked if you would be his date. Formal was a big deal for fraternities and sororities, it was an excuse to get blackout drunk in semi expensive clothing, and every single Greek house tried to out compete each other on which had the best venue. And getting dressed up with Jean as your date? It was enough to make you smile right there in the gym, ignoring the way that Mikasa was rolling her eyes at you between sets.
connie: are we all bringing dates
reiner: that’s how formal works
connie: IM JUST TRYING TO GET A HEAD COUNT
sasha: niccolo is coming :p
armin: annie said yes too!
Mikasa sighed, putting away the dumbbells. “Are they still texting?”
You gave her a look. “What do you think?”
connie: jean how long did it take for u to finally ask her
jean: i actually did yesterday dumbass
you: connie im gonna kill u
sasha: AWWWWWWWW YAY U GUYS ARE GONNA BE SO CUTE
marco: finally
You kept waiting for the chat bubble with an ‘E’ pop up signalling that Eren was typing, but still nothing. Was he really ignoring you even in the groupchat? Usually he would be texting up a storm in the chat, making fun of everyone and poking fun at Marco for not having a date yet.
connie: OK FORMAL IS GONNA GO CRAZY
sasha: we have to remember to take pictures
bertholdt: finally some content that isn’t eren shirtless from formal last year
reiner: thank god somebody said it
eren: first of all fuck you
Wow. He speaks.
connie: eren are u bringing anyone
sasha: is that even a question hes a whore
eren: thanks
connie: so thats a yes
bertholdt: poor girl
eren: yk what fuck all of u
reiner: answer the question
It didn’t matter. It couldn’t matter. You were going with Jean and you were happy.
eren: ya i am
marco: who is it this time
armin: that girl i told you about from the club he was all over her
eren: ya
You thought back to that night, Jean’s hands around your waist while you stared at Eren making out with that girl. You could remember the way that he kissed down her neck like it was his lifeline and how he did the same thing to you twenty minutes later. The fact that he was even bringing that girl and it wasn’t just a one time thing stung you more than you’d like to admit. He must’ve liked her, right? Eren wasn’t the type of person to really keep a girl around for very long. He preferred the hit-it-and-quit-it mentality. This girl was obviously different.
Mikasa must have seen your face, because when she walked over to you, her gym bag slung over her shoulder, she narrowed her eyes. “What’s up?”
“It’s nothing,” you said, locking your phone and putting it back in your bag. “Let’s get out of here, I'm starving.”
“Wanna get Thai?” Mikasa asked, making you silently thank her for not pressing on the subject further. You both walked out of the gym into the afternoon sun, the light orange rays of the sunset beginning to shine through the trees. You thought about what dress you were going to wear this weekend, maybe the dark green one, or the blue one you hadn’t worn yet. Thankfully university formals weren’t the ones like high school with long dresses, done up hair, and suits. It was more casual than that. Short length dresses and the dressiest that guys would get would be a button up shirt and maybe business casual pants if they were feeling fancy. It was more about the experience than the outfits, but you wanted to look good for Jean.
Just Jean.
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(sorry if i forgot anyone)












