1 - 20 of 87 Works in Slow Burn Regulus Black/James Potter
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The Sensation of Screaming by itsallinthenamereggie
Fandoms: Harry Potter - J. K. Rowling
07 Sep 2025
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Night fell in Grimmauld Place like a thick black cloak. Looking at it, all looked still. But within, if you were watching closely, if you listened very carefully, you found that the fabric really covered very little. It was more the darkness you had to get through.
Regulus was listening.
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THIS IS A LONG FIC WITH A LOT OF HEADCANON. We start before Sirius and Regulus are even in Hogwarts and I literally have plot planned through the war. We explore characters in depth. You're going to hate and love (but mostly love) every single character in the fic by the end if I've done my job correctly. Well. Except for a few of them. We don't play apologetics for child abuse here. If you like it, please tell me. If you don't, please write your opinion down on a piece of paper, then burn it :)
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The Shape of Your Darkness by Geotide12
Fandoms: Harry Potter - J. K. Rowling, Arcane: League of Legends (Cartoon 2021)
07 Sep 2025
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Marauders x Arcane AU
Riddle’s near ten-year hold of the Undercity has not been in vain. When an important development happens in his favor, the final stages of his plan to conquer Piltover and rule as the one, true leader of Zaun are underway.
Sirius Black is the closest to a right-hand Riddle would allow, deadly in his craft and ruthless to keep order. He’s thrilled at the prospect of Piltover falling in repentance for its brutalities against the Undercity. When Riddle sends away his brother to spy on Piltover’s “Golden Boy”, James Potter, Sirius is left making an unforeseen connection with a tall, lanky boy from the Lanes who plants seeds of doubt in his loyalty to the cause.
Twenty-year-old and Zaunite, Regulus Black, works loyally under Riddle’s command as an ingenious chemist of the Sledgehammers — but he has doubts. His mission was supposed to finally convince him that Riddle’s rule would be glorious, but the famous, golden-hearted inventor with glasses seems to be having the opposite effect. An effect he can't afford unless he's willing to make the greatest of sacrifices - losing his brother.
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Regulus Black prides himself on order, routine, and keeping people at arm’s length. As the broody barista at Leaky Brews, he’s content to pour coffee in silence and scribble in his notebook when no one’s looking.
Then James Potter crashes into his carefully constructed world. Loud, messy, endlessly cheerful, and armed with the most ridiculous coffee orders imaginable. What starts as sharp banter and deliberate misspellings of James’s name slowly unravels into something more: secret notes on napkins, unexpected kindnesses, and a warmth Regulus has spent years convincing himself he doesn’t need.
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"perhaps I was doomed the moment I learned what kindness felt like"
Regulus Black was never meant to live long enough to want more.
But he does - desperately, quietly - and when unexpected circumstances throw him into the orbit of James Potter, he starts to imagine a life beyond expectation. A life of softness. Of choosing himself.James is golden and reckless and kind in ways Regulus doesn’t know how to trust. Still, Regulus finds himself leaning in - against every instinct, every warning.
This is a story about survival. About letting go. About learning to live, even when the world says you shouldn’t.
And maybe, if he’s lucky, it’s a story about love, too.***
originally written as a konfirmations present for my little sister
started: december, 2024
finished: 24th april, 2025*I DON'T SUPPORT JKR*
(also, English isn't my first language, so please don't mind too much if there's any spelling errors)Series
- Part 1 of anamnesis
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Growing up Regulus Black was plagued with awful nightmares. His mother made sure he couldn’t remember what they were or why he had them. Entering his first year at Hogwarts Regulus hopes to find answers for his lost memories, instead he’s confronted with more questions when he befriends a curious boy named Cassius Burke (of Borgin and Burke) who seems to think all of the marauders are troublesome pricks. With this new friendship comes a rabbit hole of dark secrets. Then one night he has the worst nightmare he could ever imagine, seeing his brother standing over the body of James Potter before getting hauled off to Azkaban. When Regulus realizes what this means, he finds he might be in over his head.
aka. Regulus is a Seer and has a vision of James's death, there's a disturbing pedophile ring amongst the Deatheaters that's causing students to go missing, there's powerful rings made to drain the magic from the muggle borns, and the weight of all these horrible atrocities and more all fall on the shoulders of one Regulus Arcturus Black.
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French Exit
noun
1: To leave a social gathering or event without saying goodbye or bidding farewell to the host or other attendees.or
Regulus is French, James is American. Regulus doesn't know how to cook, James teaches him. Regulus doesn't know how to live, James teaches him.
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Back at Hogwarts after the winter holidays, the Marauders are bracing for the promised vengeance of Barty Crouch Jr. When the prank finally lands, it leaves the Gryffindor boys hilariously confused.
What follows is a prank war of chaotic proportions, resulting in mischief that blurs the lines between houses, friendships and loyalties. Old rivalries give way to unexpected alliances, and the line between friend and foe may no longer be so clear.
James develops a budding friendship with Regulus, much to Sirius's dismay. Peter finds footing with his own pranking trio. And Remus, alongside Pandora and Lily, keeps quiet watch over everything starting to unfold.
This is the sequel to "Scribbled On Pages He Could No Longer Read", part of the "Collateral Mischief" series. It can technically be enjoyed as a standalone, but reading in order is recommended for full emotional and narrative continuity. There are spoilers and references to the plot of the first story.
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- Part 2 of Collateral Mischief
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After the death of his brother, Remus Lupin falls into a pit of depression and struggles to piece his life back together. But what happens when he finds a letter addressed to him on his brother's desk? What happens when Remus opens said letter and finds out he was accepted into the greatest art school in England?
Or you can say that Remus goes to an art school and band stuff ensues :)
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It's a hard life (in this little bowl) by Asher12bob567
Fandoms: Harry Potter - J. K. Rowling
24 Aug 2025
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This is my first ever fanfic so I'm so sorry if it's terrible, This is a very angsty fanfic with a few fluffy moments but I doubt I will kill any character as that's just sad... Also Bad relationship with Sirius and Regulus :(, it's a multi pov book and I will try to post every week... possibly more if I get excited. Also I'm not good at tagging and this will be SO CRINGE :) On Wattpad as well. Name is the same and my username is UnicornGRF
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Regulus Black's life as a series of vignettes with long term plot sprinkled in--
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In a crumbling town no one ever leaves, a group of troubled teens meet. The school is too big, the town too small, but for them it’s home. The place that’s seen all their troubles, harbored all their secrets, and held the love they found in one another along the way.
When Regulus Black’s parents decide to ship him off to a boarding school on the west side of England, he’s uprooted from everything he knows. Alone in a pretentious new school, he braces himself for more of the same bone-deep loneliness he's always known. Only everything shifts when he meets the people that will ultimately change his life for the better—they’re chaotic, loyal, larger than life—including one messy, golden-hearted bespectacled boy who makes him wonder if maybe, for once, he’s exactly where he belongs.
Friendship, first love, heartbreak. Quiet moments and loud ones. A group that changes everything.
70’s heavy metal. Space Invaders campouts. Roller derby bruises and skate park smoke sessions. Train station graffiti tags. Late-night gas station shenanigans. And a runaway road trip to save the world.
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James always had three thoughts on his mind.
Number 1 : Always was to protext Sirius, his brother, his other half. James swore to always protect him, even if he couldnt physically.
Number 2 : Somehow get Lily to like him back. It was a struggle since Lily always seemed to be mad at him. He liked her since he was 11. And now he's gonne get wrinkles soon!
But what James didnt expect to be Number 3 , was the unexpected arrive or Reg. But how did that happen?
Well. It all happened Last Summer...
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wild horses (running through your hollow bones.) by mybodysmadeof_crushedlittlestars
Fandoms: Harry Potter - J. K. Rowling
13 Aug 2025
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The subconscious is a silly sort of thing. The boy at dinner who nodded vigorously and smiled in approval is not one who would ever want out, is he? Regulus never did speak his mind, never did question anything at all, because there was no need. His thoughts were certainly echoed in the conversations at dinner, in the boasting of murder and the so-called 'blood cleansing'. He agreed with this, wholeheartedly. Or perhaps, there was never a time and never a place and never a need for him to do any digging in that heart of his.
In which, Regulus very much wants to be thirty, flirty, and thriving. He isn't exactly aware of this, though, not even when he wakes up in another man's bed, as a man himself, and definitely not the boy he was about six hours ago.
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Remus Lupin's life was thrown upside down since the night he was bit. Ever since then, weird shit has been happening to him, and he only has James to help him through it. On top of the side effects from the bite, a dead body was found in the woods near their small town, and there's a new kid at school, who is causing trouble for Remus, good and bad.
Sirius Black was convinced his whole family was crazy, moving around, chasing monsters that don't exist. He was sick of the superstitions and fake spells. But after moving to a new town once again, he starts to see things he didn't think were real. For the first time, he starts to wonder if his family isn't so crazy after all.
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Hello, you by Starryeyed1
Fandoms: Harry Potter - J. K. Rowling, You (TV 2018), Marvel Cinematic Universe
02 Aug 2025
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Remus Lupin runs a quiet bookstore in New York City. Or at least, he did, before Pandora Rosier walked in. Now he’s in Los Angeles with a fake name, no plan, and too many things he refuses to think about. He’s trying to start over, but the past doesn’t like to be buried and neither does whatever lives inside him.
He lands a job at a store owned by the Black family, and just when he thinks maybe he can keep his head down- he meets Sirius (and the others) And suddenly, the mess he thought he left behind starts catching up fast.
Remus wants to believe this time will be different. Because if he ruins this, and the people he loves, there may be no coming back.
OR
multi-pov marauders au (based on YOU, but way better) where remus is a hopeless romantic with a criminal backstory, sirius has a secret band, barty is a drug dealer (and in said band), regulus is a film student (inspired by beautiful boy), james loves comics and guitar, peter is autistic but kind, lily is a astrologer, mary owns a flower shop next door.
They help each other through life, but things get complicated when dark secrets and love get involved- and they'll have to make choices... some that will haunt them forever.
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Eclipse (You Should Find Another Guiding Light) by LuluParadise
Fandoms: Harry Potter - J. K. Rowling
25 Jul 2025
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We know how the story goes. Sirius and Regulus grew apart, the relationship between the siblings torn by strife and resentment due to their years at Grimmauld Place. Then Sirius left, turning his back on the Blacks and fully replacing Regulus with James as his brother and never looking back.
But what if Regulus didn’t take Sirius’ abandonment lying down? What if he gets a new sibling of his own, one that fills the void Sirius left?
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Constantly editing!
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manchild, always come running to me by crazymateinnit
Fandoms: Harry Potter - J. K. Rowling
14 Jul 2025
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Regulus Black cannot stand varsity athlete, infamous fuckboy, psychology (ironically) major James Fleamont Potter. He can't stand James's attitude, his way of life and most certainly Regulus cannot stand how much attraction he feels toward the obnoxious man.
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My Feelings For You Aren't Bullshit by Plz_send_help27
Fandoms: Harry Potter - J. K. Rowling
11 Jul 2025
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James potter gets sick over the Christmas holidays. His roommate Sirius and his boyfriend remus are visiting Remus' family for the holidays, and James' parents are on holiday so there is no one to look after him. so who better to get help from than regulus black, Sirius' brother and Remus' roommate?
- slow burn where regulus reluctantly looks after James when he's bed bound with a cold, both fall in love without realising it because they're both oblivious idiots.
Series
- Part 1 of Marauders Era
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Regulus Black has built a new life in L.A.—actor, boyfriend, secrets tucked neatly out of sight. But when his strange new neighbor turns out to know his brother, and a certain rockstar named James Potter walks into a bar looking like trouble, everything Regulus has carefully avoided starts catching up with him.
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celle qui hante. by goobernoel
Fandoms: Harry Potter - J. K. Rowling, Marauders - Fandom
22 Jun 2025
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A deceased Walburga Black tears through the lives of her children like knife and paper. The shadow of an upcoming war is upon them. Two sides prowling to shed blood— two brothers looking to cease family history, though the path is muddy and cracked by past mistakes; clogged with responsibilities and new relationships which bring them further and further away from each other. Or, perhaps, closer, though they don't quite yet realise.