Title: Be my (fake) girlfriend!

Pairing: Sirius Black x Female!Reader

Word count: 4848

Published: 28 March, 2020

Edited: 1 May, 2020 (Photo/Gif added)

Author: Heloise Daphne Brightmore

Warnings: Explicit public display of affection

Notes: Marlene is not very nice in this story, but it's only for the plot-line, otherwise we love her <3

You were happily writing an essay on your chosen 5 hexes including their usage, effects and consequences for your DADA class. You were not a know-it-all, nor an exceptional student, but you did pick up things quite quickly. And of course if it had anything to do with your favourite class, Defence Against the Dark Arts, you didn't have to be told twice.

You were sitting in front of the Black lake, along with your best friend Lily. She was studying as well, but as far as you knew, the last time you checked on her, which was about 30 minutes before, she dug herself into Herbology. You didn't pay much attention, because you knew if you did, you would have been unable to finish your essay. It was all thanks to the Marauders of course. Lily didn't just sit next to you alone, her back was laid against James' chest while he kept playing with his Golden Snitch. But he was not the only one present from their group. Peter was farther away at the side of the lake, squatting down which made you unable to see what he was doing, while Remus was sitting just a few feet away from you, laying his back on the trunk of the tree which had its leaves slowly turning from green to brown and orange as autumn started to show itself. Last but not least Sirius Black was sitting next to you sighing every 30 seconds out of boredom and you just wanted to roll up your parchment and hit him on the head. But even with your short-temper you tried to control yourself.

As he sighed for the thousands time, you have had enough of it already.

"What is your problem, Black?" You questioned rolling up your essay. You knew it was useless to try to concentrate because even though he didn't do anything and actually he was able to shut up for a while, his sighing made you even more agitated.

"Nothing." He said with another sigh leaving his lungs.

"Dear Godric!" You slapped your forehead dramatically. "Black, if you sigh one more time, I will hang you upside-down." You stated looking into his unique grey irises.

"But I am bored." He whined.

"Stop complaining and just do something then." I told him as I started picking up my bags and books from the grass.

"But you are all being boring and it's no fun alone." He stated with a straight face.

"Well I am sorry, maybe you should find new friends." You smiled innocently. He shook his head and threw his arm around your shoulders putting his weight on you while you started walking towards the castle.

"You are no fun." He stated and you just chuckled.

"That's not entirely true. I simply know how to keep myself occupied even when there are no pranks, parties or quidditch in sight. You should learn..." You didn't have time to continue as a red haired girl jumped on Sirius pulling him away from you.

"I missed you." She said trying to kiss him. You pulled a face at the scene unfolding.

"Help me." Sirius asked desperately, but you just let out an evil laugh.

"You deal with it on your own way, Black." You winked at him and walked away. Oh Godric, how much you enjoyed when his fangirls caused him problems. Karma is a bitch after all. It will bite you on your backside and as Sirius was a player, Karma indeed visited him quite often.

You headed to your dorm to leave your bags and books behind, then started walking towards the Great Hall. You took a seat and started munching on some chicken breast and mashed potato with orange juice on the side. Soon enough all you friends arrived too.

"You are one of the most evil people that I have ever met." Sirius stated while taking a seat next to you.

"Excuse me?" You asked surprised and turned towards him waiting for an explanation.

"You just left me there. No empathy, nothing." He whined in disbelief.

"Hold up, Black. Noone ever forced you to shag every second girl in Hogwarts. If they come after you, that has nothing to do with me. Don't blame it on me." You stated and turned back to your food.

"You just said it yourself. I just needed them for one night. I never promised them more. We barely ever talked for Godric's sake." You chuckled at his last statement.

"Would have been surprised if you were able to talk to them for more than two sentences. You are not really choosing the smart ones to be honest." You laughed at your own words.

"If I wanted them to be smart, I would have gone for having a girlfriend. Smart ones are more challenging. I don't have time for that." He turned to his food and started stuffing his face.

"Maybe if you had a girlfriend they would stop coming after you." You took another bite of your chicken and started chewing. But then you felt something strange and stopped. Sirius was looking at you with wide eyes and a dark expression sitting across his face. "Hmm?" You wanted to question him, but your mouth was full and you were taught not to talk like that .

"You are a freaking genius." Ha stated and you eyes widened in surprise. As you swallowed the food, you finally were able to talk.

"I know, I guess." You chuckled. "Although it would be great if you could enlighten me why."

"I just need a girlfriend." He stated as if it was the most obvious thing out there. Sirius Black having a girlfriend. Sounded like a joke even in your own head.

"Didn't know you liked someone." Peter interrupted.

"I don't." He replied shrugging his shoulder.

"Wait a second." You frowned trying to understand his train of thoughts. "People get into a relationship when they like someone. You can't just have a girlfriend if you don't like that person." You explained feeling dumb.

"But I can always have a fake girlfriend." He chuckled and your eyes widened at his ridiculous idea.

"Right." You replied and focused your attention on your food, ignoring his dumb thoughts. You took another bite of your chicken and took a sip of your orange juice.

"And that would be you." He said bluntly. Without hesitation you spat out the content of your mouth at Peter who was sitting on the opposite side of the table.

"I am so sorry." You apologised to Peter who started cleaning himself. You took out your wand and saving him from embarrassment, you cleaned him up with a simple spell. "What?" You turned towards Sirius this time.

"You will be my fake girlfriend." He shrugged. You let out a loud, scary laughter causing your friends to have goosebumps appear on their arms, neck and back. But then as quick as it came, it stopped.

"Are you out of your mind today? Have you been cursed? Did you drink some potion? What is wrong with you in general to have such stupid thoughts?" You bombarded him with questions but he just laughed at you.

"You are cute." He said with a grin appearing on his face. You blushed for a second, but quickly shook it off.

"What is wrong with him?" You looked at James for help who was playing with Lily's hair.

"Don't ask me. He is my best friend. I can't make a difference between his stupid and stupider ideas." He laughed awkwardly. You turned back to your food and just ignored everyone. You couldn't comprehend how you ended up in this situation.

"Why is it a bad idea? Finally girls would get off my back which means that would be good for you too as you keep complaining about how much they are annoying you." He was right. As much as you loved how karma bit back, you couldn't argue with the fact that they were utterly annoying and you just wanted to curse their ass, but you couldn't imagine yourself with Sirius. For Godric's sake he was Sirius Black. A freaking womaniser.

"Yeah, nah." You replied uninterested.

"Come on, just for a few weeks. I will give you anything you want in return. I will do anything you ask." Now that sparked your interest.

"Okay, let me think this through with a logical head. Let's say that for some unknown reason, maybe thanks to a mental breakdown, I decide to agree. How on earth are you planning to explain to people that we have been friends for years and we just fell in love out of nowhere?" You tried to reason.

"Come on, love. Your answer is sitting across the table." Sirius pointed at James and Lily. "We have been friends, while they were enemies. Now they can not be separated. You have an easier task in turning friendship into love, rather than turning hatred into love. They do not need an explanation." You were surprised at his comeback, but you had to agree that he was right.

"Fine, let's say that I agree and go along with it, but I will not kiss you or anything. So care to explain how do you expect people to believe that you have a girlfriend, the big Sirius Black who is making out with someone in every corner, but doesn't kiss his own girlfriend?" You tried to be the logical one once again.

"Well you wouldn't die from a peck on the lips." He stated and you grimaced.

"Ew." You stated simply.

"Hey!" He whined. "I get it if I am not your type, but I am definitely not bad looking." He tried to keep his confidence.

"You are good looking, don't get me wrong, but you are like a brother to me. Godric, I would never want to give a peck on my brothers' lips." You pulled a face at the scene playing in your head.

"You don't have to do it all the time. Just a couple of occasions if someone questions us." He stated. You started thinking long and hard. It was not an easy task, you were close anyway, but you could not imagine yourself being any kind of intimate with Sirius. You sighed deep in your thoughts. At last the final debate won in Sirius' favour, but only because you knew that you could ask for anything at the end.

"Fine." You said. Sirius was about to jump at you, to hug you, but you stopped him by placing your hand on his chest. "But do not forget. I didn't specify it in my head yet, but you said I can ask you for anything later on." He started nodding heavily, agreeing to everything you said. "Godric, I am already regretting it." You sighed accepting the hug that followed.

The next morning quickly came but you already felt the headache you were about to get. You walked down to the common room and waited for the Marauders and Lily to join you. As soon as they arrived you turned to Sirius.

"So how do we plan on starting this nightmare." You ask with a bored face.

"Come on, be more enthusiastic. Look at it as a way of acting. It will be fun. And to be honest you can spend more time with me. That's a blessing on its own." He smirked while locking your fingers together.

"That's exactly what I am dreading the most." You mumbled but unfortunately he heard it.

"I am not feeling the love." He laughed at you, but you just snarled, showing your teeth just like a dog would do when being unhappy about something. "Yeah, you will not convince anyone with that expression." He chuckled at your attempt.

"Fine, fine, will try a more realistic one later. Now let's go." You sighed giving up.

As you walked downstairs to the Great Hall to grab your breakfast, you felt the heads snapping towards you and Sirius as you were holding hands.

"Godric, this is so much fun." You heard James laughing from behind you.

"Shut up, Potter." You growled in annoyance.

"Now, now, babe. He is my best friend, you need to play nice." He chuckled.

"Babe?" You questioned the nickname you got.

"We need pet names, love." He stated casually.

"Dear Godric, what did I get myself into?" You whispered with a very obvious eye-roll.

"It will be fun." He squeezed your hand reassuringly and this time a gentle smile appeared on his face. For whatever reason it actually made you feel at ease.

"I hope so." You returned the smile as you stepped into the Great Hall. Quite gasps and surprised screams could have been heard from the girls of Sirius' fanbase. "Oh Godric." You simple stated, but Sirius just squeezed your hand letting you know that he would take care of everything. Somehow it made you feel slightly better. You took your seats and started eating you breakfast. You felt the daggers directed at you from the girls, but you also felt something else. You looked around for a second and you saw boys looking at you and you just couldn't place them anywhere.

"You have some admirers." Remus stated while looking around. "It might just work out for you as well." You looked at him not being able to understand what he meant. "You are dating Padfoot now, which means guys will be more interested in you after your break up." You formed a silent 'o' with your mouth.

"I don't need the extra attention though." You simply replied.

"Too late for that." He chuckled and turned his focus back on his food.

The rest of the day went quite calmly, other than a few gasps and crying girls running away when Sirius gave you a kiss on the forehead or hugged you from behind while hiding his face in your neck. You wanted to hate it, you wanted to feel disgusted, but it actually felt good. You felt cared for and if you wanted to be honest, you enjoyed Sirius' company.

At the evening, after dinner you and the Marauders started walking to the common room when Marlene McKinnon started running towards your boyfriend. You stepped in front of Sirius and stopped the girl by her shoulder from getting any closer.

"What are you doing?" She questioned with a deep frown sitting in between her eyebrows.

"I have been tolerant towards you for jumping at Sirius each and every time as I had no grounds to stop you. However..." You stepped closer in a threatening manner. "Sirius is my boyfriend now and I would very much appreciate it, if you could keep your filthy hands off of my man." You hissed with a fake anger in your voice.

"And what if I don't?" She asked in a challenging manner. "You can't tell me what I can, and can not do to Sirius." She growled.

"As his girlfriend, I can and I will tell and show what you can, and can not do to my man. And if you try anything, which I dare you to, then I will have every grounds to curse your ass out of this place. Are we clear?" You whispered the last sentence, giving it a more serious tone. She kept looking into your eyes before bumping her shoulder into yours, leaving your group behind.

"Oh Godric!" Sirius threw his arm around your shoulders. "That was so badass." He barked happily.

"Just don't fall for me, Black." You laughed at the empowering feeling you got from your little argument.

"Can't promise anything." He chuckled pulling you closer.

"Ew, gross." You replied gently punching his chest with the back of your hand.

Days and weeks passed by and everyone seemed to settle down, except Marlene. She kept coming after Sirius on every occasion and while at first you only showed fake annoyance towards her behaviour, it quickly started to frustrate you more and more, to the point where you stood in front of each other on a corridor with wands pulled out amongst a bunch of students, looking at you curiously.

"I told you to leave my boyfriend alone!" You hissed, anger clearly showing in your voice. "Which part of that sentence was hard to understand for that dysfunctional brain of yours?" You questioned.

"I told you, he belongs to me. He should not touch a filthy girl like you. You are not even feminine. How can he like you?" She looked up and down on you, scanning each and every part of your body.

"Well clearly I am doing something better than you. He only needed you for a couple of shags, while I have been dating him for weeks." You replied with an evil chuckle leaving your lungs. She launched forward sending a hex towards you, which you quickly diverted at the wall causing a small explosion.

"You filthy, bitch." She screamed. "You don't deserve him."

"Believe me, the least important opinion is yours. You are worth nothing in my eyes." You laughed at her reddening face. You had to admit, you kind of enjoyed dancing on her nerves.

"Die!" She screamed as she sent a curse towards you, which you have never heard of. You could hardly deflect it, sending it towards the wall again. You wanted to attack her, but you didn't want to get in trouble. You kept defending yourself as you were taught on DADA, but your blood was boiling. You didn't know how long before you lost your self control and attacked her or passed out of exhaustion.

"What is going on here?" You heard Sirius' voice coming from behind you.

"Your ex-girlfriend has gone mental." You replied as your defence swallowed the hex sent towards you.

"Marlene?" Sirius called the mentally unstable woman. "What's happening?" He stepped in front of you deflecting the last curse she sent. As you were finally able to rest, you fell down on the floor. You were tired of keeping up your defence and your legs gave in. Sirius looked behind him with a worried expression sitting across his face. "Are you okay?" He asked, pulling you up and keeping you stead by placing his arm around your waist while holding his wand in his other hand. You laid your forehead on his shoulder for a second as you have lost quite a large amount of your energy and you weren't sure if you were able to stand for any longer.

"Why are you doing this to me?" She asked. "I want you to be with me and I know you feel the same way." She cried. You didn't see her, but you could hear the desperation in her voice.

"I do not want to be with you. I do not like you. And if you keep harassing my girlfriend I will definitely never forgive you." He growled at the woman.

"But why?" She sobbed. "We were such an amazing couple." She screamed.

"We were never a couple. And to be completely honest with you, I would never be your boyfriend. Your behaviour disgusts me." He spat the last words. "You will never be on the same level, nor close to the same level of her, so do not even try. She is the only one I have eyes for and you better learn that quick, because if I see you harassing her one more time, I will curse you and get you expelled." You looked up at Sirius, but you could only see his profile. His jaw clenched from anger and you just wanted to calm him down. You caressed his cheek with the back of your hand gently which made him relax a bit under your touch. As he looked at you with worry in his eyes you felt like you forgot everything but him. Your brain completely closed everything out, but his grey irises and inviting red lips. You wanted to scold yourself for the thoughts, but it was too late. By the time you wanted to slap your forehead for having such unrealistic thoughts, his lips were on yours inviting you for a kiss. 

You didn't have to think twice before you returned the gesture. You couldn't believe how gentle and passionate he was at first, which quickly turned into dominant. You were lost. He kept changing his ways so quick, you felt overwhelmed. You wanted to keep his lips on yours forever and just get lost in the sensations he was giving you. But it couldn't last. As you parted gasping for air, he placed his forehead on yours.

"Woah." He said and you chuckled at his behaviour.

"No!" You heard Marlene scream and by the time you looked towards her a black sparkling light was coming towards you. You felt a pull from Sirius to try to protect you, but the curse was too close. It hit you straight across your ribs causing you to scream in pain. You heard your own voice as if you weren't even in your own body. The feeling was unbearably horrible, your eyes closed in an instant and your knees gave in. You didn't feel much other than a weird hot feeling on your side, until someone lifted you up. You wanted to scream from the pain it caused you, but nothing came out. You felt like your body was being ripped in half, but you were unable to do anything. Soon enough you gave in to the darkness and let yourself be consumed by nothing itself.

When you woke up, everything was white. Not the kind of white you expected though. White sealing, white walls, white bedsheet. Where were you? You wanted to sit up, but you were unable to do so. A stinging pain coming from your ribs stopped you and you growled out loud at the the uncomfortable feeling.

"You're awake!" You heard a female voice followed by red locks blinding you and gentle arms crawling around you.

"I guess." You whispered. You coughed to get your vocal cords working again.

"How are you?" You heard James and soon was able to see him as Lily backed away from you. He was holding your friend closely and after careful inspection you could tell she was not sleeping much recently.

"I am good, but she looks horrible." You chuckled which caused you to wince in pain.

"Because someone caused me to worry." She crossed her arms in front of her chest, sulking.

"I'm sorry." You apologised sincerely and a gentle smile appeared on her face. "I'm all good now." You reassured her.

"I'm glad you are okay. You scared us." She admitted. You started inspecting the room and you saw Peter and Remus sitting on the other bed next to you, while Sirius was standing at the end of your bed, arms crossed, head hanging low. You kept looking at him, but he didn't seem to realise.

"Let's give them some privacy." Remus suggested as he quickly picked up on what was going on. As soon as they left, you expected Sirius to come to you or to say something, but he didn't even move.

"Are you okay?" You asked him, which caused him to let out a bitter laughter.

"You are asking me if I am okay? Really?" He shook his head. "You are lying on a bed in the hospital wing, not me." He hissed, anger clearly showing in his voice. You didn't understand why he was angry at you though.

"Well, you look disturbed." You replied.

"Disturbed. What a gentle use of word. I am not disturbed. I am angry. My blood is boiling." He explained.

"Are you angry at me?" You asked almost as a whisper.

"What?" His head snapped up, frown sitting across his forehead. "Are you kidding me?" He asked in disbelief. "I am angry at myself for letting it get this far. You don't understand. I thought that was it. You were laying in my hands, blood pouring from you and I was unable to do anything other than bringing you here." He shook his head and dug his fingers into his hair. "I thought you were dead. You went completely white in minutes and by the time we got here your body was cold. I thought you were gone, do you understand?" He was almost shouting. You wanted to get up and hug him to reassure him that you were fine, but as soon as you moved you winced in pain. "Stop moving." He walked up to you and sat down on the side of your bad. He took your hand and gently squeezed it and so did you. "I am so sorry." He said looking down at your hands.

"Don't apologise." You replied quickly.

"It's my fault." He sighed.

"No, it is not!" You stated firmly. "She attacked me, she cursed me. It had nothing to do with you. If it wasn't you, but another guy, she would have done the same to his girlfriend. She is mentally unstable, you can't control people like that." You explained squeezing his hand reassuringly once more.

"But if I hadn't asked you to pretend to be my girlfriend, then it would not have happened." He started searching for excuses. You gently placed your hand under his chin and lifted it up to be able to look into his eyes.

"You can search for all the excuses you want, but it will not change the fact that she is a psycho who needs help. I was hesitant at first, but not because of your fangirls like her, but because I didn't believe it would work. I guess it worked too well. Thanks to this little act, I got to see another side of you which made me fall for you harder than I expected." You smiled at him as his eyes widened at your words.

"You what?" You chuckled at his surprised expression.

"Did you not realise it?" He shook his head as a reply. "I guess I am a very good actress then." You laughed at his dumbfounded expression.

"Since when?" He asked in confusion.

"Haven't been counting the days, Sirius." Your replied at his stupid question. "Do you remember what you have told me when you first asked me to play along?" His frown immediately showed you that he didn't understand what you meant. "You said I could ask you anything." You enlightened him. He chuckled at the memory coming forward in his mind. "Can I ask for it now?"

"Yeah, of course." He replied unexpectedly fast.

"Can you kiss me?" You knew you sounded brave, but inside you were trembling. He leaned down to you without hesitation, but before he could have kissed you, you placed a finger on his lips. "But only if you feel something towards me. If you don't..." You couldn't finish your sentence. He pulled your hand away and attached his lips to yours. You happily returned it. You were tugging at each others lips trying to gain entry and as Sirius bit your lower lip, you let him have his way. Your kiss deepened and quickened, making you occasionally moan into it. You wanted to pull him onto you, but you knew how inappropriate that would look. You knew you needed to calm down and with a kick peck you ended the kiss. Sirius' eyes were still closed and he groaned at the distance you created.

"Why did you pull away?" He growled without even opening his eyes.

"Don't really plan to lose my self-control in the hospital wing. That would be a tiny bit awkward, don't you think?" You chuckled while a smile grew across Sirius' face as he opened his eyes.

"I wouldn't mind." He smirked at the thought and you punched him on the chest gently.

"Not happening." You laughed. A moment of silence fell up on you before Sirius spoke up.

"Thank you." He said and you frowned at him. You didn't understand him. "Thank you for not leaving me." Your eyes widened, but then an evil grin appeared on your face.

"Oh Godric, Sirius has become a softie." You chuckled.

"Love, you are in big trouble." He whispered seductively as he leaned back closer and kissed you more passionately then before. You melted into his embrace, completely ignoring everything else, but him and his touches.

Notes: If you enjoyed it, don't forget to like the chapter. Thank you :) I am also taking requests. If you have any, please just let me know.

I do not accept requests with suicide, suicidal thoughts and self-harm. I'm sorry, but those are subjects, that I do not cover for personal reasons. Anything else, let me know.