Black Family Line

Harry Potter - J. K. Rowling
F/F
F/M
M/M
G
Black Family Line
Summary
Ursa Walburga Black, Regulus and Sirius' little sister, has never considered herself a good person, but when almost a year after her older brother ran away from Grimmauld Place she finds her twin brother tangled up in the arms of none other than James Potter, she manipulates none other than Voldemor so her brother can be free, maybe even happy. She convinces him Regulus will be of better use as a spy and there's only one way anyone will believe he's switched sides is if he does the same thing his brother did, run away and the Potters have already taken in one stray Black... but that wouldn't be enough to convince Dumbledore, of course it wouldn't, but they've all heard rumors about the nature of his relationship to Grindelwald, if Regulus appeared to be in love with Griffindor's golden child...That's when Bellatrix reminds them he's not the only Gryffindor the old man notices, and they all know the black's motto: heir and one to spare. That's how she ends up living with the Potters and in a fake relationship with Peter PettigrewIt's a SLOW slow burn and fake dating with good Peter Pettigrew
All Chapters Forward

Yours and Mine

You so fuckin' precious when you smile (huh, yeah)

Hit it from the back and drive you wild (yeah, yeah, yeah)

Girl, I lose myself up in those eye-eye-eye-eyes

 

Two hands come down on Peter’s shoulders on his way upstairs. He jumps to the growl of Frank Longbottom’s deep voice in his ear “Where do you think you’re going, Pettigrew?”

“Merlin fuck, you scared me!” he swats his hands away and the older boy chuckles

“You wouldn’t by any chance be headed to see your lovely little girlfriend, would you?” Peter wasn’t but he’s playing a part, so he’ll play. Also, he’s curious as to why he asked it like that

“So what if I was?” he questions

“No! You horny boy, I said she could crash in my room, not you. No funny business in my bed please” of course she asked Frank for his room even after securing one with the marauders, it was actually better. He’ll probably sleep better without the threat of propelling his own devastation if he created the minor inconvenience to Ursa. This, however, he cannot let through. He’s meant to be bummed about it. He’s shit at acting, but he’s brilliant at deflection, some light teasing will do

“Your dorm could see some action, you’re bed’s probably wondering about the weight of someone other than your hand” 

“Do I need to splash you with water?”

“No sir” Frank’s lip twitches and Peter wonders what that’s about. He files it in his mind for further research at a later date

“Maybe I should walk you to your first class” Frank narrows his eyes on him and studies him

“we have first period free” Peter winks at him

“Oh, fuck, I really don’t want nasty sheets”

“Calm down, I’m only messing with you, I’m knackered, I’m going to sleep. In my own big, cozy bed. She’s got sharp elbows” he adds because what person in love would pass up the chance to sleep with their beloved?

“Alright, I believe you, but if I find out you lied to me I’ll show her your baby pictures, Palmer showed me one where you’re peeing and I’m sure I can convince her to give me a copy”

“Heathen. Also, I need to yell at my sister apparently. I think I’m gonna take advantage of my sleep deprived crankiness, excuse me”

“Oops” Frank grimaces as he watches head to the Hufflepuff table

 

James takes the steps to the owlery two at a time “Ursa!” He beams at her and she burns the piece of paper in her hand –highly unrecommended amongst such flammable feathered creatures– without so much as a glance or blink at his arrival “What are you doing right now?!” James hops next to her on the windowsill

“Hoping your mother never gave birth to you,” she pets the nearest owl and there’s a reason why ‘soft as a feather’ is a thing why?”

“Ha. Ha. Do you want to help me? I’m setting up a blind date for Dorcas”

“With who?”

“I don’t think I can tell you”

“Then no.”

“Who are you setting her up with?”

“A shrink”

“What’s a shrink?” she resists the eyeroll and instead puts on a smirk because at this point Potter is asking for it

“It’s the colloquial term for a person that’s been shrunk by a curse. Some only a few millimeters and others so tiny they could fit in your pocket”

“I didn’t know about that, why don’t they teach about it in school?” by the look of wonder on his face she deems the chances of him asking about it in class aren’t too bad and resolves to sit in for a few of their classes “It should be in the DADA’s class”

“The Hogwarts curriculum is notably missing a key important things, specially pertaining to curses. We’re not even taught about protego horribilis until our last year and even then most people leave school without mastering the only spell that can stop any curse, rumor has it even stop the killing curse”

“Aw, Evan was right, you are a nerd” he says fondly and she glances out the window, immensely tempted to tip him over the edge “It’s adorable. Do you know how to do it?” she knows that glint in his eye, and there’s no way in hell she’ll spend time teaching him the spell, so she lies, it’s more fun that way. Although watching his face fall when she tells him she knows the spell just isn’t willing to teach it to her would be brilliant. He’s annoyingly insistent though, and she doesn’t want to put up with his presence more than she has to

“Not yet, it’s a very complicated spell”

“Oh, we could try to learn it together”

“Or –and hear me out– you could try to learn it with someone who actually enjoys spending time with you. Aka, not me”

“I’ll let you know if I figure it out” he answers easily 

"How gallivant of you"

"Are you alright?" He frowns at her

"I'll be better once you leave"

"Alright. But you can talk to me if you want, alright?"

"Stop staring at me like that, you're going to go cross-eyed,"

"It's just, whatever you're going through, you don't have to go through it alone, you know" 

She stares at him like he smells foul because his heart reeks and hexes him as she walks away. She should honestly be awarded for holding back for so long.

 

Hands on your body, I don't wanna waste no time

Feels like forever even if forever's tonight

Just lay with me, waste this night away with me

You're mine, I can't look away, I just gotta say

 

James' midnight romancing goes unaided. And he's still sore from the nasty curse Ursa threw at him. But none of that stops him from giving Dorcas and Marlene the best blind date they've ever been on. Hopefully the last blind date they'll ever be on. Because they'll be going on plenty more unblind dates. Together. Because this is going to work out. And they're going to fall in love.

He starts by the ambiance, what better than the astronomy tower. Regulus disagrees because that's his and James' spot, but that's exactly why James knows it's perfect. He sets up a small round table where their legs can brush and tangle with each other. Candles are a must for romance, he charms them to light a red shade and tint everything a softer tone. He doesn't put too many, just enough for sight but still ease the nerves. Darkness is a blanket of comfort for most people. James isn't one of them, he light the entire tower up with twinkling fairy lights for Regulus, he likes being able to see him and seeing Regulus see him. But he understands not all people do, Reg doesn't. And this date tonight isn't about him. So he holds back on the lighting and blooms red flowers on the ledge —okay, he tries to bloom red flowers, he only manages a shower of red blooms but they'll do the trick. He puts the appropriate charms to secure them from wind –most people aren't like Reg who loves to feel the wind blowing on his face and cold biting against his bones for James to warm up– he doesn't, however, put up a temperature charm. Body heat can be romantic, or borrowing a jacket. Worst case scenario they both should know how to easily spell themselves warm.

He sets up another smaller area, the one he names the snogging area. It's cozy with pillows and blankets and the perfect spot to watch the stars –he and reg might've used it so much they're experts on it–. He borrows the music equipment from Remus and puts a frank Sinatra record on to start playing as soon as they arrive. He sets up all of Marlene's favorite records beside it, a conversation or starter or a different option if it all gets too lovey-dovey like he's been mocked to do once or twice. The house elves already have their instructions for a wonderful night and as much as he would love to see the looks on their faces when they see each other, he cares about their experience more than his own selfish desires. He tells them where and when to be and assures them his privacy charms are impenetrable. Except for reg. And Ursa. But they don't need to know that. At lunch time he gives them both an envelope written in Regulus' fancy handwriting with all the information they need. Now he just has to wait.

He's never been much good in waiting.

He guides Regulus out to the biting cold as the younger complains about him 'giving away our spot'. He smiles at him and wraps his arms around the waist he's obsessed with "close your eyes love" he whispers the words in his ear, nothing more than a warm breath against his neck. Regulus rolls his eyes but does as he instructed and James' heart flutters because he knows Regulus trusts him. Regulus, who doesn't trust most people –let's face it, all Blacks have trust issues–, he trust James to guide him through the night with his eyes closed. He has to kiss his cheek for that "I love you so much" James keeps his arms around him as he ushers him ahead.

“Can I open my eyes now?”

“Not yet love, we’re almost there” he guides him under the glow of the moon and the stars through the gardens until they reach the quidditch pitch “Okay Reg, you can open them now” his eyes flutter open and meet hundreds of candles glowing in the air. There’s a blanket laid out for them circled by rose petals and cushioned with pillows with a picninc basket with snacks and champagne beside it “How did I do?”

“Perfect” he turns in his arm because no matter how breathtakingly beautiful the view before him is, he’ll always prefer staring at James, his James “You’re perfect” he brushes their lips together, a feather of a kiss “I love you so much James Potter” there’s something in the way he says it that takes James’ breath away, like he’s reached a depth of his heart he didn’t know existed

“And I love you Regulus Arcturus Black, always and forever, with every bit of my heart”

“Always and forever” he echos, it’s a promise and then they’re kissing and no amount of touch is enough until they’re naked and together.

James can’t stop smiling as he traces Regulus’ veins, from his thigh to his hips, his hands to his arms. It’s a path James was meant to learn. Regulus brushes his cheek and he kisses his palm, because he can “I’m obsessed with your curls” James admits and a smile takes over Regulus’ face, so lovely and bright, his eyes twinkling in the candlelight, so unguarded, so different from the first smiles he earnt from him, he doesn’t ever want to stop earning them “Marry me”

“What?” Regulus rolls onto his chest with a faint laugh to trace the rise and fall of his muscles

“I mean it. Marry me”

“You’re insane”

“I’m in love”

“You’re sixteen”

“I’ll still love you when I’m sixty”

“You can’t be certain of that”

“I can. I am. I’ll love you until my dying breath”

“I could live a thousand lives and I still wouldn’t deserve you”

“This one’s enough love, you just have to love me”

“Until my dying breath” he promises and James kisses him

“Then we are wed”

“That’s not how it works James” Regulus huffs fondly

“Says who?”

“I don’t know, the law? Tradition?”

“We can start our own tradition, our kids can get married the same way”

“Our kids will have the grandest wedding party you’ve ever seen!” Regulus argues in outrage

“I can give you a party if you want”

“We need rings and— probably clothes” they fall into each other laughing and happy

“How about this?” James links their pinkies together “I pinky promise to be your beloved, very dashing husband and cherish and love you until my dying breath and if there’s a life after this I promise to love you then too” Regulus chuckles and buries his face in his head but doesn’t argue

“I, Regulus Arcturus Black, promise to be your beloved husband and make sure our kids get the wonderful big wedding they deserve,” James folds into him tickling his neck and Regulus nudges so he can beam into his eyes, see the complete joy in them “I promise to love and cherish you until my weak and feeble body takes its final breath”

“I think you mean hot and sexy powerful body”

“That’s a stretch”
“Hot sexy and powerful enough to render thousands of men to their knees” he crawls up to his knees and straddles his hips

“Only one man I want on his knees for me,” he grabs his waist and turns them around so he's the one on top. He kisses his chest and pulls back to stare at him as his palms travel the planes of his body "my husband" James crashes their lips together until the sun comes up and people will start to show up. They walk back to the castle together, the happiest they've ever been.

 

You so fuckin' precious when you smile (huh, yeah)

Hit it from the back and drive you wild (yeah, yeah, yeah)

Girl, I lose myself up in those eye-eye-eye-eyes

 

Marlene shows up first to the date. She's usually late to most things but she made an effort not to be this time and now she's early. Only for the other person to be late. Even when they’re rushing. She has to give it to James though, he really went all out. The door slams open and she turns to face who James deemed the possible love of her life with a smile. Only for it to crumble off her face when she sees none other than Dorcas Meadowes standing there “Oh, you’ve got to be kidding me!” there goes her chances of at least having a lovely candlelit evening

“Sorry. I’m supposed to be meeting someone, James said—”

“It’s me. And of course I didn’t know you’d be the one showing up through that door or I obviously wouldn’t have come”

“Right.” Dorcas stares down at the ground “I’ll get out of your hair then, sorry to ruin your night, I promise I didn’t know— this isn’t me trying to— I’ll just go” she shrinks down in herself and heads for the door and Marlene feels a stab of guilt down her spine. She was a bit mean, this either of their faults and everything’s so lovely it’d be a shame if it went to waste

“Wait,” Marlene takes a deep breath and blows it out her nose “you can stay. Not as a date, mind you, but James went through all this trouble, we might as well eat”

“As friends?” Dorcas’ entire being lights up, her back straightens and eyes sparkle “Ursa said being your friend might help me get over my annoying crush on you”

“Can you stop with the whole crush thing?”

“Yes. Sorry.” she settles into her chair and stares down at the food “Ooh, it matches my ring!” she wiggles her thumb with a squid ring adorning it “Don’t look sir, I’m about to eat your mates” she twirls the squid around so it’s facing the inside of her hand instead of the plate and has to bite down on a smile “Bon Appetit” she picks up her fork and Marlene chuckles

“That is the worst french accent I’ve ever heard”

“And you’re not french, you should see the look Regulus’ face whenever I so dare butcher his beloved language”

“I didn’t know the Blacks were French”

“Sort of? Their family’s from france and they learnt French before they learnt English. Evan can speak it too, is some sort of posh pureblood ritual or something”

“Knowing a language is a ritual now?” Marlene can’t help sounding amuse and what’s even worse, she can’t help feeling it too. Talking to Dorcas isn’t hard, almost nice.

 

They don’t really know how it happens, but they end up on the blanket sipping Champagne while Dorcas gives her a free hand stick and poke tattoo of a squid on her thumb and Marlene gets the stupid impulse to bring their lips together. She doesn’t though. They part ways with silly smiles on their faces as they each make their way back to their rooms.

“Ursa?” Dorcas frowns at the figure walking through the hallway and she turns to her with a bright smile

“Hey there gorgeous”

“What are you doing here?”

“Waiting for you to tell me what’s got you smiling like that” Ursa smirks and Dorcas gasps 

“You knew?!” Dorcas squeals far too loud for being out of bed after hours “Was it your idea?!”

“I know everything, love”  she winks at her “but I didn’t think you’d take this long to get back, I’m fucking exhausted, so you’ll have to walk and talk, I need to get to bed” Mrs Norris rounds the corner and Ursa gets out a cat biscuit from her pocket. Mrs Norris jumps into her arms and Ursa pets her as they walk while the cat eats her treat. Dorcas doesn't have to be given permission to talk about Marlene twice. She talks the entire way back and when they crawl into bed she keeps talking long past Ursa cast a silencing spell –not that Dorcas knows–. That night she falls asleep with a smile.

 

Running circles 'round my mind

Even when it's rainy, all you ever do is shine

You on fire, you a star just like Mariah

Man, this feel incredible, I'll turn you into a bride, 

 

James sits down on the Gryffindor table and drags Regulus down onto his lap because he can’t part from his husband for even a second “Here,” he holds out a spoonful of sweetened oatmeal just the way Regulus likes it “to power your very hot and sexy powerful body”

“I can feed myself James” he chuckles but takes the bite anyway with a fond smile

“You’re my baby. Until we get our own baby” he takes a spoonful for himself and the next for Regulus “Do you think he’ll have your eyes or mine?”

“Why are you assuming they’ll be a he?”

“Aw, can you picture our little baby girl?”

“Whatever gender our baby is, I hope they look like you” James kisses his jaw with a smile and stares at him with a smile that slowly morphs into a thoughtful frown “Why are you staring at me like that?”

“I’m trying to picture what you’d look like as a girl” he hums and Regulus raises his brows at him with a sober expression “What? Why are you looking at me like that?”

“I’ve been told a thousand times my sister looks like the girl version of me”

“Yeah, maybe, was she cute as a baby? Oh! Do you have pictures as you guys as babies! I need to see your cute little chubby face”

“I was never chubby. That was Sirius” Regulus smiles and James chuckles, he kisses his cheek

“Mr Potter. Mr Black.” a voice clears behind them and James turns to Regulus with his thoughtful face on

“Do you think I should change my last name to Black? Remus could change his too and we’d all have the same last name! As a proper family”

“I wouldn’t wish being a Black on anyone”

“Misters.” McGonagall calls their attention again and this time they listen “As cute as this display of inter house affection is, I must remind you, you are still at school, do try to pertain some sense of propriety” 

“Sorry. I’ll go back to my table” Regulus blushes redder than the tomato on the table and James whines, he tugs on his sleeve and begs him not to go. Remus and Peter make their sleepy way to them with a much livelier Sirius skipping behind them as he gushes about something with Marlene McKinnon

“That won’t be necessary, just use your own cutlery. And seat”

“But Professor, James’ dick is Regulus’ seat.” Peter mumbles and his eyes go round when everyone looks at him, he grimaces “Did I just say that outloud?”

“Mr Pettigrew,”

“Sorry”

“Detention with me this evening”

“Yeah, that’s valid” he sighs and picks up his own fork

“You’re so lucky Sirius didn’t hear you” Remus smirks down at his toasts as he cuts it in four

“Hear what? How much you all adore me?”

“Ask Peter what Regulus’ designated seat is”

“He’s not wrong” James hums

“I am holding a knife” Regulus reminds him in warning as he spreads butter on a toast and Peter swallows down the reminder of what Ursa did with a knife just like that

“I meant I’m your seat, and you’re mine” Regulus turns what Peter can only describe as gooey at James’ words

“Oh, yeah” he kisses his cheek and James beams

“You two are disgusting” Sirius wrinkles his nose at them “I think I lost my appetite” he shoves his plate away and Remus rolls his eyes at his boyfriend’s dramatics. He hands him a triangle toast and Sirius bites into it happily, Remus shakes his head at him that’s a bit too sappy for this early in the morning but overflowing with fondness

“We’re married” James tells him with a smile so big it must hurt

“What?!” Peter spits and jokes on his orange juice

“We got married last night”

“What?!” Sirius squeals so loud the entire great hall turns to face them

“Not legally or anything like that”

“We were married by the stars”

“James, mate, that sounds romantic but I have no idea what the fuck ‘married by the stars’ mean”

“You got married without me there?!” Sirius gasps “Both my brothers get married to each other without me there?!”

“You calling them both your brothers probably didn’t help with the invite”

“It would’ve been weird if you’d been there, we were naked”

“Do you want to see your brother naked and getting it on?” Peter bites down on a smile

“In his throne” Remus reminds him with a devilish grin

“Start running potter.”

“I love you” he pecks Regulus before he takes off at the speed of light with Sirius on his heels

“We’re happy for you, by the way” Remus tells Regulus

“Does this mean we have to throw you a bachelorette party?” Peter wiggles his brows at him

“No, that’s Barty’s job, we have to throw James a bachelorette party”

“Don’t you fucking dare Lupin”

“I bet Sirius is gonna want to get married now” Peter hums as he sips his fresh glass of orange juice

“Yeah, we agreed to do it in the future, but that future suddenly seems a lot closer now that his baby brother got hitched. You’re not pregnant, are you?” Regulus flips him off

James and Sirius return not long after with radiant smiles and arms draped over each other’s shoulders “Listen up everybody!” Sirius crawls onto the table in a shakespearean pose “MY BROTHERS GOT MARRIED LAST NIGHT!!!” Regulus drops his burning red face into his hands and tries to melt into the table

“Don’t be shy Reg!” Peter pats him on the back “Stand up, show off your new ring”

“I hate you” but the girls are already squealing and demanding he show them the ring. He shows them the thick silver ring with a black gem in the center

“We transfigured a rose petal into rings” James tells them in matching excitement that Regulus can only smile at his husband’s joy “the black turns red when we touch” there’s some cooing from the girls.

“Oh, that is so romantic!” Lily beams and begs for them to touch hands. They comply easily and sure enough, Regulus’ black gem turns to red and James’ red one becomes black. Mary squeals beside them and demands they have a party. Sirius seconds that notion and they instantly start planning.

What they’re thankfully too happy to overhear is Mulciber’s homophobic, unrequested, unneeded opinions on the whole matter. Evan does though. He considers shutting his mouth right then and there, but he can’t have that go back to his father. Worst case scenario, he doesn’t come up with an appropriate method of punishment, he can just tell Ursa. Mulciber and his asshole friends better hope he comes up with something good. Evan almost wishes he wouldn’t. But oh well, maybe his wonderful and ingenious boyfriend has some ideas. The same boy their friends call deranged. It's perfect.

 

I'm so fucking happy you're alive (huh, yeah)

Swear to God, I'm down if you're down, all you gotta say is right (yeah, yeah)

Girl, anything I can do just to make you feel alright

Oh, oh, oh, oh, I just had to let you know you're fine

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