Narrators pov Your brother always told me 'never get a boyfriend' he was very protective over you because well he's Eren Yeager. Having eren as a brother can be a bit difficult with all the fights he use to get in but the most annoying thing is how protective he is over you with guys. It's nice that he will protect you and all but you can't even talk to guys without eren at least glaring at then.
The one guy eren didn't mind you being around was armin his best friend, he didn't need to worry about him...did he? Turns out he did because you and armin had been secretly dating for 3 years. You have been friends as long as eren and armin have, you fell in love when we were very young but didn't start officially dating still shortly after you joined the training corps. Eren spent so much time worrying about other guys he didn't notice you and armins relationship of course you were very sneaky, but it was worth it you love each other so much.
Erens main focus was Jean he loved flirting with you, you always rebuffed it saying you weren't interested. That didn't stop him trying which resulted in many fights, which you and mikasa had to break up.
(Y/n) pov Everyone was just eating in the mess hall when Jean decided it would be a great idea to annoy eren "so eren how's (y/n) doing? still single I hope" Jean says leaning over towards eren. Eren stops drinking from his mug and looks over at Jean "she fine, what does it matter to you if she's single" he says aggressively. "you know full well why" he reply's smugly "back off my little sister" eren says sounding very aggressive, "your barely a few minutes older then her" jeans says sounding angry. I look at armin who I'm sat across from and shrug, he shrugs in return just as confused as I am. "So eren is she seeing anyone?" Jean says sound smug again "no she's not" eren say gritting his teeth. I wink at armin and touch his foot with mine, I see blush a little. "Well maybe I could..." before jean could finish eren slams his hands on the table and grabs jeans shirt "like hell you will" "bring it on asshole".
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(You would be sat between mikasa and Connie)
Armin ducks out the way as to not get hit when the fight begins. Mikasa already tries to break the fight up but I don't feel like saving erens dumbass for the 1000th time, but I see an opportunity to spend sometime with my boyfriend. I grab armins hand and lead him out the mess hall while everyone is distracted with the fight.
"Where we going?" He asks "my room" I reply quickly opening the door leading us in. I quickly shut the door and step closer to armin. I rub my hands on his chest "I want to spend some time with you" I say leaning close to his face. He smirks closing the gap between us, we meet in a passionate kiss my arms wrapping around his neck, his wrapping around my waist. He backs us up to my bed us falling on to it, him between my legs. We begin making out, our tongues softly dancing together, hands trailing up and down each other's bodies.
We love when we can spend time together like this just enjoying each other, armin is so amazing his soft hair, his glimmering eyes, his velvet lips I could kiss then for hours. I wrap my legs around him and he lays on top of me. He trails kisses down my jaw to my neck careful not to make marks. I let out soft moans, armins starts lightly grinding against me. We both know we're to young to go to far but that doesn't stop us wanting and lusting for each other intensely. He gently pushing my skirt up so he can grind against me more. I feel his clothed member rub against my clit. I let out louder moans, as he returns to making out with me.
BANG!!!!
The door swings open to reveal a VERY pissed off looking eren "what the fuck is going on here!!!" Armin leaps off me and to his feet. I feel like I can see steam coming out eren ears, which could very well be possible. "Armin what the hell are you doing to my sister!!" Eren yells "Eren call down I can explain" armin says trying to get eren to calm down. He rushes and pulls my skirt down and looks over me "are you ok? He forced himself on you didn't he" eren says franticly "WHAT! of course not" I reply shocked eren would think armin could do something like that "then why was he on top of you!?" Eren says angrily. I knew there was no hiding it "me and armin are dating. We have been for...3 years" erens eyes widen and his jaw drops "3 years...and you never told me" he says annoyed "you know how you are with guys just talking to me, we would of never gotten any peace and you would be your angry self" I say annoyed not looking at him.
I hear eren sigh "I guess I have been to overprotective, I'm sorry (y/n) and I'm sorry to you to armin" eren says sincerely "it's okay eren" armins says sitting down next to me "I just really worry about you, especially after what happened to mum" I crawl over and hug my dear big brother "it okay, I don't mind you telling Jean off tho he's annoying" eren laughs lightly "at least you can tell him you have a boyfriend now" we both giggle. "I'll leave you guys alone now, but (y/n) if he ever hurts you, you know who to come to" I nod. As eren is about to leave "I'll never hurt her eren, I promise" armin speaks up, eren nods to him closing the door behind him.
"At least he knows now" armin shrugs "now where we're we" I reply jumping onto him quickly resuming are makeout session.
Tada 🎉 another one done sorry it's been awhile I've just not been able to write anything.
