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Sirius Black x Potter!reader

Summary: Sirius runs away from ‘home’ having finally suffered enough of his parents’ ideals and behaviours. The only place he can really call home is with his best friend, James Potter. Wherever James is, you are too.

This is my first fic after a really long time but I'm really excited to get back on my writing journey! Writing for Sirius Black is mainly because of my absolute love for Ben Barnes so I hope you enjoy!! <3

‘Mum! Godric- James if I catch you looking through my stuff again, it’s your head!’ You chase after James who somehow manages to not only sneak into your room, but also find and run away with the hoodie you forgot to give Sirius back after a night of Quidditch practice.

James pauses in front of you causing you to almost run straight into him and holds up the hoodie with a wide, shit-eating grin. 

‘And why, dear sister, do you have my best mate’s hoodie in your closet?’

You roll your eyes at his annoying, but also very usual antics. ‘Because, dear brother, your best mate gave it to me after I was freezing to death during the Quidditch practice you so thoughtfully stretched out until the dead of night. I simply forgot to give it back before Christmas break! Now give it back!’ 

You jump up to grab the hoodie back from James which he oh so kindly pulled out of your reach. Euphemia took the hoodie away from James’s hands and gave it to you. 

‘Let your sister fawn over the hoodie Sirius gave her in peace, James.’ James smirks at you as your mother chuckles at both of you. 

You stare at her in disbelief and scoff. ‘Seriously, mum! James is being a twat –’

‘Language!’ You hear Fleamont yell from downstairs.

‘– and I get humiliated! Unbelievable! Why don’t you tell mum about Lily, Jamesy?’ You flash your brother the same grin he shot you a mere few seconds ago.

You watch his eyes go wide as your mother pauses her movements and turns to him, ‘Are you still chasing that girl, James? I told you, girls don’t like stalkers.’

James playfully glares at you and turns to you mother, ‘She actually gave me a chance, mother dearest. And I said yes!’ He grins.

You look at him with the most unimpressed look you could fathom and both your mother and James catch up on it, which causes your mother to mirror that look. ‘Okay fine, she said yes, happy?’

‘Very actually.’ He sticks his tongue out at you and you reciprocate the gesture.

Your father’s footsteps emerge up the steps as he walks past you both, ruffling your heads. ‘Everyone to bed or else Santa won’t bring any presents down the chimney for tomorrow morning!’

‘He’s talking to you, Jamesy!’ You sing-song.

‘You wish, sister!’

Everyone heads to their rooms with a final goodnight, you settling in your bed with the comfort of the sounds of the rain and Sirius’s hoodie warming you and lulling you into sleep.

James jolts up from his sleep at the violent bangs of knocks coming from downstairs. In a rushed daze, he scrambles to put his glasses on and grabs his wand. He clutches it tightly, knuckles turning white as he sneaks downstairs, ready to attack whoever decided to disturb the peace at four in the morning. 

He looks through the peep-hole, adjusting his sight to the figure standing outside. As his vision adjusts, he begins to panic.

‘What the fuck?’ James opens the door. ‘Pads?’

Sirius spins to look at him, eyes wide, lips quivering from the cold as he engulfs his figure in his robe. A bag is slung against his shoulder, the boy looking too weak to even carry it properly.

James could tell the streaks on his best friend’s face were from tears that were being washed away by the constant, harsh droplets of rain.

They were both too stunned to even speak.

‘Prongs –’

‘Get in. Now.’ 

James grabs Sirius by his shoulders and leads him inside, taking his bag from him as if it was weighing him down a ton and a half. He helps Sirius take the robe off and replaces it with a warm, fuzzy Christmas blanket as he leads him to the couch.

You huff while sitting up, expecting James to have gone downstairs to get a very early head start on the presents. You walk out of your room and storm downstairs ready to tell him off until you’re stopped in your tracks by the site in front of you.

‘Sirius?’ Your voice wavers.

Both boys situated on the couch turn to look at you. ‘Y/n.’ You wouldn’t have been able to hear Sirius’s voice if it wasn’t for the complete dead silence in the house.

You rush down the rest of the stairs and sit on the floor right in front of Sirius, your hand on his knee to reassure him of your presence.

You glance at your brother for an explanation, but he only shakes his head at you with a frown. You take that as a hint that Sirius hasn’t said anything and to not rush him.

Sirius’s eyes trail over your figure as you sit in front of him. He notices the hoodie you’re wearing was the one he kept looking for, however finding it on you softened the edges of his heart.

James notices Sirius’s eyes on you and smiles softly, despite the situation they’re in right now. ‘I’ll get you a cup of hot choco, yeah?’ James offers Sirius which he responds to with a grateful nod and an attempt of a smile. James gets up and walks to the kitchen while you stay with Sirius.

You look up at him with a reassuring, gentle smile. ‘You can talk when you’re ready, Sirius. No rush, yeah?’ He nods.

James comes back with a cup of warm hot chocolate and places it on the table for Sirius, taking his spot back next to him on the couch.

‘I left them.’ Sirius breaks the silence, his eyes stuck on his hands fidgeting with each other on his lap. ‘It was about time I left my parents but… I can’t believe I just left Reggie there. He’s gonna hate me, he- Godric I-’ He breaks, his hands now rubbing his face as if wiping off all his emotions.

‘You don’t have to explain, Padfoot–’ James speaks up, but Sirius quickly shakes his head.

‘No. No you need to know why, I just- It’s so hard-’ 

You squeeze his knee. ‘You can explain tomorrow, Sirius. You need to rest now, alright? You know you’re always welcome here.’

You can see the look in his eyes. Fear, pain, hurt, regret, but also relief and a tinge of happiness. He can only nod as he looks at his two best friends.

James stands up, a cue for you and Sirius to follow him. ‘You can stay in our spare room, we’ve had it ready in case anyone wanted to stay for the holidays.’

‘Thanks, Prongs.’ Sirius manages a smile as you both lead him to the room which you assume will be his for a good while from now.

‘I’ll tell mum and dad in the morning, you should rest now.’ Sirius nods and thanks him again while he’s settling in. James gives him a pat on the back before he kisses your forehead and heads to his room for a well-needed rest.

You, on the other hand, linger on the doorway of Sirius’s room. He looks at you with a hint of desperation in his eyes which you take as a hint to walk in, shutting the door behind you and sitting on the edge of his bed.

‘Are you alright?’ He sits down next to you with a sigh. ‘I know it’s a stupid question but… I don’t know…’

He chuckles lightly, the tension in the air softened, giving way for a more light-hearted and calm tone.

‘I could be better, but I’m glad I have you.’ He pauses as he looks at you, a stare that made your heart flutter. ‘A-and James, of course.’

You look at him with a hint of a smile, your shoulders rubbing against each other. ‘You’ll always have me, Pads… Us.’ 

You suddenly stand up. ‘Hold on.’ You walk downstairs, grab a glass of water and painkillers and go back into Sirius’s room and place them on his bedside tables while he watches you with curiosity. 

‘What’s this for?’

‘You were absolutely drenched. Just in case you might fall ill, something for you to take in the morning.’ 

His heart skips a beat as he watches you show him the sort of care that not even his family has shown him in his whole lifetime. 

He grabs your wrist desperately but gently, his eyes looking up at you like a puppy anticipating its praise for a trick.

‘Pads? You okay?’

He gets up, hovering over you with a vulnerability that makes his tall frame appear small and fragile.

Wordlessly, he slumps his forehead on your shoulder and lets his shoulders sag. The weight of the night finally leaves him as he collapses onto you, letting himself break down into your shoulder. His heaving sobs echo around you.

‘Siri…’ You whisper into his ear. You’re not used to seeing such an emotional side of him. He’s usually so bright and loud, a proud, smug grin on his face as he prances through the halls of Hogwarts. Now, in the dim and little room, you hold the same boy that’s held your heart in his palm for years. The boy that’s now showing a side of him that he doesn’t even show to himself.

You wrap your arms around him tightly, pulling him impossibly closer to you as you comb your fingers through his long, still slightly damp hair.

Sirius shudders at the feeling.

‘Everything’ll fall into place. I promise, Sirius.’ You continue to whisper reassurances into his ear. You can’t tell if those reassurances are just for him or for the both of you, but now you just know that he needs them more.

He pulls away to look at you while you remain in each other’s hold, his eyes roaming yours as if to find a hidden message in them. Anything, anything to prove to himself that he’s where he’s ever needed to be, where he’ll ever need to be.

Your finger as it glided up his skin to wipe the tears off his face, the site of you in his hoodie, the domesticity of it all, the dense, moody atmosphere; all of it. It all clouded his brain, his mind, any sense of logic that he held onto. It was all fogged into a silhouette he couldn’t make sense of anymore as he crashed his lips onto yours.

The kiss was messy, unrestrained, as if pouring every ounce of your soul into that fleeting moment of closeness. Your lips moved together in a trembling dance, every touch drenched in vulnerability and an aching need to hold on. It was as though the world had shrunk to just the space between you.

You both pull away reluctantly in the search for air, panting exasperatedly as your eyes never break the foggy stares you give each other. In that moment, Sirius knew he wasn’t alone anymore. For the first time, the weight of his past felt lighter—not gone, but shared. And as your laughter filled the small room, he realized this was what home felt like.

‘Took you only four years, Pads.’

You both chuckle, his forehead leaning on yours while his hands trace the skin of your neck and waist.

‘That all you’ve got to say, darling?’

You smile up at him. ‘Trust me, there’s so much I’ve got to say.’

He pecks your lips. He couldn’t get enough of you and he’s only just started.

‘Good thing I’m stuck here with you then, huh?'