#immediately saw a bin and went yep i'm hiding in there

[f1-birb]

and here we see a gremlin in his natural habitat

[giorno-plays-piano]

Cry Little Sister

Pairing: Peter Parker x Reader

Warnings: yandere, obsession, verbal threats, gaslighting, both reader and Peter are high school students, kinda slight incestuous undertones (the characters aren't related, though).

Words: 2214.

Summary: Your adopted older brother is not as nice as he seems, but no one is willing to believe you.

P.S. And yep, I used one of my favourite citations from Grishaverse in the end of this story. Hope you enjoy!

__________

"Peter, sweetheart, I knew you'd make it!" Your mother had clasped her hands together while your father patted Peter's shoulder. "The best test results in the whole class! My goodness, we need to celebrate it!"

You smiled at them tiredly, seeing the faces of your parents practically glowing. True, Peter was a damn smart guy. You had never achieved such high results despite all those nights you spent studying, while he didn't care much about it at all, it seemed. You hadn't seen him with a book yet.

"I'm gonna bake an apple pie for you." A smile of your mother made you feel bitter, and you averted your eyes, missing an odd look your older adopted brother sent you.

Half a year ago he finally came to live with your family once your parents finished gathering all the papers and waited for almost a year to receive "the call". You remembered how you had jumped happily in the living room along with your mom, believing it was finally over. Well, maybe it was over for Peter, but for you it was only a beginning. You could hardly imagine the sweet skinny guy who you considered very shy and bashful would change so drastically.

It started very subtle. First, Peter was trying to be helpful, assisting you when you did the housework - he was actually way better at cooking and cleaning than you and easily got praised by your mom. You were truly thankful to him for his help, especially since it was easier to get to know him while working together. It was then when you first spotted the odd looks he was sending you when he thought you didn't see. There was something... uneasy lingering in his gaze. You couldn't quite put your finger on it, but sometimes Peter made you shiver with the way he spoke or touched you discreetly. It was strange. Of course, the boy didn't do or tell you something that would make you worried, but you just couldn't shake the feeling that something wasn't right. You blamed it on the fact you couldn't get accustomed to a new life with an adopted brother yet. Surely, it wasn't supposed to be easy?

But the more you spent time together, the stronger that feeling got. Despite Peter becoming a part of your family as easily as if he had always been your parents' son, you were wary of his sudden urges to touch you and always keep you in his sight. At first you thought he was just touch starved and needed human warmth. Maybe for Peter it was just easier to come to you rather than your parents since you were almost the same age as him.  But then... one day you saw him going through your things and taking one of your lipsticks from your makeup bag. You suddenly remembered losing a lip gloss two weeks ago.

Trying to voice your concerns, you talked to your mom who was so insensitive she went to speak with Peter right away. Of course, he said it wasn't true and you had probably misunderstood him since he only wanted to borrow a pen. He even showed his table and wardrobe to demonstrate he didn't hide anything.

From that time Peter had changed. He didn't hide his unhealthy behavior from you anymore, and he was scaring you with the things he had done, keeping an eye on you when you were around and stalking you if you were not, never staying far away aside from the time he had to be in class.

Of course, he sensed that you were becoming resteless, less and less eager to spend time with him, blaming it on lots of homework or sudden meetings with friends. You weren't blind to his frightening affection - if you could call his feelings like that. Why was he doing it? Despite spending only several months living with you, your parents loved him dearly, paying him twice more attention than you. You had never protested against it, knowing a poor soul like him who didn't have his own family needed all the help he could get now. But this... this wasn't alright. This wasn't a feeling siblings should have for each other. Did Peter consider you one? Did you truly consider him your older brother? You weren't sure. Nevertheless, it still didn't feel right.

Carefully, you attempted to talk to your father about it, vagualy wording your concerns and giving him little details - sure, you didn't like how Peter was behaving, but he didn't deserve to be banished from your family and sent back. You still believed something could be done to set everything right. Maybe the boy just didn't realize things were not supposed to work this way in a family. However, your father laughed it all off. He said little girls like you were thinking too much of themselves lately, claiming the whole world was obsessed with them. Peter simply tried to be a good brother and look out for you.

You had never felt more humiliated in your entire life.

Dropping all attempts to bring Peter's unhealthy behaviour to your parents' attention, you decided there was just one thing to do - separate yourself from him completely.

No more doing the housework together, no more chats in the kitchen in the morning, no more having lunch together at school, no more cuddles in the evening. You kept yourself as busy as you could - in the morning you did jogging, at school you spent time with your friends, in the evening you were taking your books and doing your homework in the park, at your friend's place or anywhere convenient. Even though Peter tried following you, you had started to change places all of a sudden to keep him away from you.

This was when he had enough of you distancing yourself.

Suddenly, Peter fighted for affection of your parents with such ferocity as if you tried to strip him of their love. His gradea were suddenly way better than yours - he claimed he had finally felt safe in his new home and could spent his energy elsewhere. The way he behaved was even more sweet than before. On the other hand, strange things started happening to you: once your mother found your expensive satin blouse torn and blamed it on you and your carelessness; the other time the chicken you cooked was so salty it ended in a trash bin; your friend received threats coming from your phone number, though you had never ever sent anything like that to her.

It was easy to guess who was doing this to you, but Peter never admitted it out loud. Talking to your parents was worthless, too, as in their eyes the boy was a pure blessing. How could you blame him for things you did to catch their attention?

Shit. You knew something was wrong with Peter, but you could hardly imagine to what extent he could go to have his way. It was unbelievable a boy like him could manipulate people so easily, wrapping them around his finger. Why was he doing it? Everyone already loved him. Everyone but you.

"Y/N!" Your mother's sharp voice broke the silence, and you hurried downstares, finding your mom near the washing machine with a wet black sock in her hands. "Are you out of your mind?! Did you put your black socks in there when I said to bring your WHITE clothes?!"

"But I didn't!" You gawked at her, knowing perfectly you only brought her what she asked you to. "I swear I didn't!"

"Oh yes, of course, it's Peter who went through your dirty clothes to incriminate you, dear." She sneered at you. "You have to come up with a new excuse, this is getting old. Look what you've done, my white jeans are ruined!"

"Please, mom, I-"

"Go to your room. I don't want to see or hear you." She snapped, tossing the sock to the floor as you stared at her in horror. She had never been so irritated like in the past month when your "slip-ups" were happening more and more often.

Racing upstairs, you pressed your hand to your mouth, trying not to cry. Why was he still doing it to you? Why did Peter want everything to be like he wished? Why did your parents never believe you? It was you who was their true daugther, for God's sake!

Locking the door, you fell down on your bed, burying your head in your soft pillow. It started to become unbearable. Why was this all happening? Despite your growing hate towards Peter, you couldn't say that he was ugly and unpleasant. He was easy on the eyes and could be really nice to people around him, and it made Peter quite popular among the girls at school. Why on Earth didn't he set his eyes on anyone other than you? There were plenty of girls who'd be willing to date him and give him as much attention as he wanted.

You wiped away your angry tears with your pillow, biting on your lower lip. It was unfair, and you weren't going to give in to him just because Peter wanted to play with you like a spoiled child. You'd find a way to prove you weren't guilty of all those things he wanted to pin on you, you just needed to gather yourself and think properly.

Suddenly, you heard someone knocking on your window and rushed to it immediately: your room was on the third floor. Seeing Peter sitting on the bench of a tree, you gasped in shock. You opened the window right away, praying for him to stay still.

"Are you out of your mind?" You whispered in horror, holding out your hand to him. "What are you doing there?!"

He smiled at you like nothing was happening, taking your arm and crawling towards your window. In the next moment he was already inside your room, grinning like a kid and shutting the window behind himself. You furrowed your brows, your heart racing. Peter was insane!

"What if you slipped?" You asked him furiously. "Are you mad? Do you want to die?!"

"No, but you wouldn't let me in your room unless I came in the window." He admitted carelessly and smiled, reaching out to you and enveloping you in a hug. "I'm glad you don't want me to fall."

"You're out of your mind, brother." You grunted, trying to push him away, but his grip was only becoming stronger. "What are you doing? Let me go, please."

"But I want a hug from you. Is it so bad?"

You clenched your teeth, watching him angrily. "You just made my mom scream at me for that stupid sock. You think you deserve a hug?"

"I only did it because you're stubborn. It's your fault I had come to this, Y/N." His sickly sweet smile made you nauseated as you put your hands on his chest in attempt to keep him away. "Come on, why have you been acting so cold? I just want to be a part of your family."

"Are you serious?"

Your eyes could burn a hole in his face as you stared at him, getting more and more angry with his behaviour and trying to blame you for his own actions.

"This isn't like it should be in a family, Peter. We're siblings now. Siblings don't do it... l-like that." You felt your face growing hot as you became deeply embarrassed, knowing how your words could be interpreted.

"But we're not siblings, are we?" He tilted his head to the side, narrowing his dark eyes at you and smiling widely.

You growled in irritation, still unable to get rid of him holding you like a doll in his hands.

"If you don't want me to be your sister, what family are you talking about, then?"

"We'll, it's not the only family I can have with you, right?"

You stilled, unsure you understood what Peter meant as he chuckled with content, watching you getting more and more confused while he gently caressed your back. What other family he could possibly mean?

It took you a few seconds to realize he was talking about marriage between you two.

Your eyes popped out of its sockets. Was he fucking serious? That kind of family? No, he should have been out of his mind completely. He definitely had to see a psychiatrist or something!

"You're joking, aren't you?" You muttered, shocked. "You can't be serious!"

"But I am, sister." Peter's sweet smile was slowly turning sinister as he leaned closer to you, dropping a kiss to your temple as you shivered against him, wanting nothing but get away. "And you better stop with that silly attitude of yours if you don't want me to get real angry."

"And what are you going to do if I don't? What if I will tell everyone about this?"

He smirked, touching your forehead with his and closing his eyes for a second.

"I see you still don't understand." Peter whispered to you, watching you getting more and more nervous. “I will strip away all that you know, all that you love, until you have no one but me.”

___________

Tags: @finleyjayne @alexakeyloveloki   ​@helenaeisenhower @villanellevi @hurricanerin ​@void-hoechlin @abyssaint @heeeyitskay @chris-evans-indian-fanfic @rosalynshields @brattycherubwrites @sllooney @angrythingstarlight