Regulus Black & Sirius Black Have a Good Relationship FanFiction

Savior Complex

Savior Complex

M/M
G
Updated
13.04.2025
Fandom
Harry Potter - J. K. Rowling
Characters
Regulus Black/James Potter, Remus Lupin, Regulus Black & Sirius Black, Barty Crouch Jr.
Tags
Heavy Angst Blood and Injury Angst with a Happy Ending Fluff and Humor Emotional Hurt/Comfort Angst and Hurt/Comfort Minor Character Death Car Accidents Caretaking Regulus Black & Sirius Black Have a Good Relationship Chaotic Barty Crouch Jr. James Potter Loves Regulus Black
Even Spider-Man can't save everyone.When James witnesses a catastrophic car accident, he tries to help the victims as best he can, but without his suit, he can't use any of his powers without giving up his identity. Afterward, he grapples with his fa...
The Space Between Floors

The Space Between Floors

F/F
F/M
M/M
G
Updated
13.04.2025
Fandom
Harry Potter - J. K. Rowling
Characters
Regulus Black/James Potter, Regulus Black, Sirius Black/Remus Lupin, James Potter/Lily Evans Potter, Remus Lupin, Sirius Black, James Potter, Regulus Black & Sirius Black, Evan Rosier, Lily Evans, Barty Crouch Jr., Sirius Black & Remus Lupin & Peter Pettigrew & James Potter,
Tags
Angst Forced Proximity Regulus Black & Sirius Black Have a Good Relationship Alternate Universe - No Voldemort eventually just a little ((Thank GOD)) James Potter is a Ray of Sunshine written like a romcom James and Sirius are bestie goals the prank does not happen either James falls first and harder
When a magical disturbance at Hogwarts needs investigating, Head Boy James Potter is roped into a research project on magical creature preservation. His only problem? He’s been partnered with Regulus Black — his best mate’s brooding, sharp-tongued li...
love you like i mean it (just because i can)

love you like i mean it (just because i can)

M/M
G
Updated
13.04.2025
Fandom
Harry Potter - J. K. Rowling
Characters
Regulus Black/James Potter, Regulus Black, Sirius Black/Remus Lupin, Remus Lupin, Sirius Black, James Potter, Peter Pettigrew, Mary Macdonald (Harry Potter), Marlene McKinnon, Dorcas Meadowes, Regulus Black & Sirius Black, Evan Rosier,
Tags
Alternate Universe - Modern Setting Alternate Universe - Canon Divergence Friends to Lovers Mutual Pining Fluff and Angst Found Family Childhood Friends Happy Ending Regulus Black & Sirius Black Have a Good Relationship Trans Regulus Black Alternate Universe - Everyone Lives/Nobody Dies James Potter Loves Regulus Black
When James sends Regulus an invite to his yearly Spain trip, Regulus actually accepts. Why not make the summer before his final year of school actually mean something?
Love-40

Love-40

F/F
M/M
G
Updated
11.04.2025
Fandom
Harry Potter - J. K. Rowling
Characters
Regulus Black/James Potter, Regulus Black, Sirius Black/Remus Lupin, Remus Lupin, Sirius Black, James Potter, Peter Pettigrew, Lily Evans Potter, Mary Macdonald (Harry Potter), Marlene McKinnon, Dorcas Meadowes, Regulus Black & Sirius Black,
Tags
Modern Era age gap Hurt/Comfort Fluff and Angst Internalized Homophobia but not really Alternate Universe - Muggle Alternate Universe - Tennis Regulus Black-centric Rivals to Lovers Regulus Black & Sirius Black Have a Good Relationship Regulus Black is a Brat
The First time Regulus Black held a tennis racket in his hands, he was four years old. Now, barely 15 years later, he is one of the most famous Tennis players worldwide, ruthless, untouchable and utterly alone. He’s never seen the point in becoming f...
Why is it always Regulus?!

Why is it always Regulus?!

M/M
G
Updated
13.04.2025
Fandom
Harry Potter - J. K. Rowling
Characters
Original Characters, Regulus Black/James Potter, Regulus Black, Sirius Black/Remus Lupin, Remus Lupin, Sirius Black, James Potter, Peter Pettigrew, Lily Evans Potter, Mary Macdonald (Harry Potter), Marlene McKinnon, Minerva McGonagall,
Tags
Angst Slow Burn Betrayal Suicidal Thoughts Protective Siblings Original Character(s) Blood and Injury Hurt/Comfort Post-Traumatic Stress Disorder - PTSD Implied/Referenced Torture Everyone Needs A Hug First Kiss
The Wizarding World was talking about it, the rumours were spreading faster than ever. People will always remember the day the darkest wizard of all time had fallen, the day he was defeated by just a baby.This is the story of the boy who lived,Regulu...
Potter Luck strikes again, for better or worse?

Potter Luck strikes again, for better or worse?

F/M
M/M
Multi
G
Updated
13.04.2025
Fandom
Harry Potter - J. K. Rowling
Characters
Regulus Black, Harry Potter, Sirius Black/Remus Lupin, Remus Lupin, Sirius Black, James Potter, Lily Evans Potter, Minerva McGonagall, Albus Dumbledore, Hogwarts Staff, Regulus Black/James Potter/Lily Evans Potter, Hogwarts Students,
Tags
I Can't Believe I Wrote This Harry Potter Epilogue What Epilogue | EWE Regulus Black & Sirius Black Have a Good Relationship Pureblood Culture (Harry Potter) Regulus Black Lives Time Travel Fix-It Remus Lupin is So Done but - Freeform yes - Freeform Wizarding Politics (Harry Potter) no Reunited and It Feels So Good
Harry ne survit pas à la bataille finale de Poudlard. Un Mangemort vengeur le tue juste après qu'il est tué l'autre con de sorcier noir sans nez. Harry pensait qu'il pouvait se reposer auprès de sa famille après une vie très mouvementée. C'était sans...
Graveyard Shift

Graveyard Shift

F/F
F/M
Gen
M/M
Multi
Other
G
Updated
11.04.2025
Fandom
Harry Potter - J. K. Rowling School Bus Graveyard (Webcomic)
Characters
Regulus Black/James Potter, Regulus Black, Other Relationship Tags to Be Added, Dorcas Meadowes, Marlene McKinnon/Dorcas Meadowes, Evan Rosier, Barty Crouch Jr., Pandora Lovegood, Pandora Lovegood/Xenophilius Lovegood, Barty Crouch Jr./Evan Rosier, Regulus Black & Barty Crouch Jr. & Pandora Lovegood & Dorcas Meadowes & Evan Rosier, Regulus Black & Ginny Weasley,
Tags
Other Additional Tags to Be Added The Author Regrets Everything Regulus Black-centric Regulus Black & Sirius Black Have a Good Relationship Author Is Sleep Deprived Trans Regulus Black The Author Regrets Nothing Alternate Universe - School Bus Graveyard Fusion Regulus Black Lives Slytherin Skittles Lives BAMF Slytherin Skittles basically its these five surviving hell every night then waking up to go to school
It was dead quiet. The only sounds heard was soft humming coming from Regulus’ direction.“...Welcome to the panic room…” - Regulus sang quietly, - “Where all your darkest fears are gonna come for you…”They all sat back and stared ahead.“...Welcome to...
Lo sabía.

Lo sabía.

M/M
G
Updated
13.04.2025
Fandom
Harry Potter - J. K. Rowling
Characters
Regulus Black/James Potter, Regulus Black, Sirius Black/Remus Lupin, Remus Lupin, Sirius Black, James Potter, Regulus Black & Sirius Black, Evan Rosier, Barty Crouch Jr., Pandora Lovegood, Walburga Black, Orion Black
Tags
Alternate Universe - Modern Setting Trans Male Character Alternate Universe - Muggle Regulus Black & Sirius Black Have a Good Relationship Alternate Universe - No Voldemort Trans Regulus Black Pandora Lovegood and Evan Rosier are Twins Sirius Black & James Potter Friendship Minor Pandora Lovegood/Xenophilius Lovegood Regulus Black & Pandora Lovegood Friendship Regulus Black & Barty Crouch Jr. & Evan Rosier Friendship Minor Barty Crouch Jr./Evan Rosier
Regulus siempre supo que James era su destino, lo supo desde antes de saber que era Regulus.Cuando James conoció a la curiosa hermanita de su mejor amigo, nunca creyó que sería su novio un par de años después.
Stranger Danger (not really but oh well)

Stranger Danger (not really but oh well)

G
Updated
13.04.2025
Fandom
Harry Potter - J. K. Rowling
Characters
Regulus Black/James Potter, Regulus Black, Remus Lupin, Sirius Black, James Potter, Lily Evans Potter, Dorcas Meadowes, Evan Rosier, Barty Crouch Jr., Pandora Lovegood
Tags
Alternate Universe - Modern Setting Other Additional Tags to Be Added Getting Together Texting Nicknames Strangers to Lovers Regulus Black & Sirius Black Have a Good Relationship Gay Panic Regulus Black & Remus Lupin Friendship Established Sirius Black/Remus Lupin mostly - Freeform Regulus Black & Remus Lupin & Lily Evans Potter Friendship
Regulus attempts to be mad at his brother and acquires a random stranger/very hot boyfriendThank you to my beta readers Lucinda (breadstickobsession) and Finn (Gayhorrorfan) You both are wonderful (most of the time)
It's not the end of the story

It's not the end of the story

Other
G
Updated
13.04.2025
Fandom
Harry Potter - J. K. Rowling
Characters
Original Characters, Regulus Black, Remus Lupin, Sirius Black, James Potter, Regulus Black & Sirius Black, Sirius Black & James Potter, Walburga Black, Orion Black, Sirius Black & Remus Lupin, Sirius Black & Euphemia Potter
Tags
Regulus Black & Sirius Black Have a Good Relationship Regulus Black Needs a Hug Sirius Black Needs a Hug Young Regulus Black Lawyer Sirius Black Sirius Black Raises Regulus Black
All Sirius wanted was to finally be free of the shackles of his parents. After working for years to become a lawyer to finally fight against them in court, it'll comes down to this final moment in the courtroom. But this isn't the end of the story.Or...
The Potterhead Chronicles Book 1: The Stone of Immortality

The Potterhead Chronicles Book 1: The Stone of Immortality

Gen
G
Updated
13.04.2025
Fandom
Harry Potter - J. K. Rowling
Characters
Regulus Black/James Potter, Regulus Black, Harry Potter, Sirius Black/Remus Lupin, Remus Lupin, Sirius Black, James Potter, Lily Evans Potter, Minerva McGonagall, Severus Snape, Draco Malfoy, Ron Weasley,
Tags
Alternate Universe Regulus Black & Sirius Black Have a Good Relationship Slytherin Harry Potter Good Draco Malfoy James Potter Loves Regulus Black Harry Potter Needs a Hug Book 1: Harry Potter and the Philosopher's Stone Sirius Black & James Potter Friendship Manipulative Albus Dumbledore Gryffindor Draco Malfoy Draco Malfoy & Harry Potter Friendship Established Sirius Black/Remus Lupin
Lily Potter had been found dead at Godrics Hollow with James Potter nowhere in sight. Right after the Ministry of Magic had announced both Potters dead, James Potter returns to Godrics Hallow from a trip out of the city of London per the Ministry's r...
don't stop believing (hold onto that feeling)

don't stop believing (hold onto that feeling)

F/F
F/M
M/M
G
Updated
11.04.2025
Fandom
Harry Potter - J. K. Rowling Glee (TV 2009)
Characters
Regulus Black/James Potter, Regulus Black, Sirius Black/Remus Lupin, Remus Lupin, Sirius Black, James Potter, Peter Pettigrew, Lily Evans Potter, Mary Macdonald (Harry Potter), Marlene McKinnon, Severus Snape, Marlene McKinnon/Dorcas Meadowes,
Tags
Fluff and Angst Internalized Homophobia How Do I Tag Regulus Black & Sirius Black Have a Good Relationship Trans Regulus Black Black Family Trauma (Harry Potter) Remus Lupin Uses a Cane American Marauders (Harry Potter) Trans Remus Lupin
Marauders in a glee AU, I was originally supposed to start this ages ago but I never got around to it.Apologies for any spelling mistakes, grammatic errors, etc. I'm too lazy to beta read anything (walk with me).pr0ngschaser on twitter! feel free to...
"James" Dean Daydream

"James" Dean Daydream

M/M
G
Updated
13.04.2025
Fandom
Harry Potter - J. K. Rowling
Characters
Regulus Black/James Potter, Regulus Black, Sirius Black/Remus Lupin, Remus Lupin, Sirius Black, James Potter, Peter Pettigrew
Tags
Fluff Relationship Reveal Regulus Black & Sirius Black Have a Good Relationship Inspired by Taylor Swift Social Media James Potter Loves Regulus Black Alternate Universe - Non-Magical Fame Marauders are a Band (Harry Potter) Established Regulus Black/James Potter regulus black is taylor swift? One Direction references if you squint
@RegulusBlack ✅See you soon London…6:00pm.@TheMarauders ✅;)6:01pm.@madeofstarlightWhat the fuck is happening…6:05pm Regulus is on tour and decides its time to reveal some secrets.
Poems For My Friends

Poems For My Friends

Gen
M/M
G
Updated
13.04.2025
Fandom
Harry Potter - J. K. Rowling
Characters
Regulus Black/James Potter, Regulus Black, Original Female Character(s), Original Male Character(s), Sirius Black/Remus Lupin, Remus Lupin, Sirius Black, James Potter, Peter Pettigrew, Lily Evans Potter, Mary Macdonald (Harry Potter), Marlene McKinnon,
Tags
Alternate Universe - Modern Setting Friends to Lovers Other Additional Tags to Be Added Everyone Needs A Hug Alternate Universe - College/University New York Self-Indulgent sorry!! Regulus Black & Sirius Black Have a Good Relationship Alternate Universe - Everyone Lives/Nobody Dies Desi James Potter London
James Potter is a pathetic, pathetic man.No, really, he is SO weak for a pretty face!Enter: Regulus Black, and the fated trip that made it out of the groupchat.or,the europe, znmd inspired starchaser+wolfstar fic i wrote on a whim!
Money Heist

Money Heist

F/F
F/M
M/M
G
Updated
13.04.2025
Fandom
Harry Potter - J. K. Rowling
Characters
Regulus Black/James Potter, Regulus Black, Sirius Black/Remus Lupin, Remus Lupin, Sirius Black, James Potter, Marlene McKinnon, Dorcas Meadowes, Narcissa Black Malfoy, Marlene McKinnon/Dorcas Meadowes, Frank Longbottom, Regulus Black & Sirius Black,
Tags
Swearing Found Family Inspired by La casa de papel | Money Heist (TV) Heist Regulus Black & Sirius Black Have a Good Relationship Sirius Black is a Little Shit Regulus Black & Barty Crouch Jr. Friendship Detective James Potter Black Family Madness (Harry Potter) Alternate Universe - La casa de papel | Money Heist (TV) Fusion Regulus Black is a mastermind Criminal Regulus Black
On the run after a heist gone wrong, Sirius Black’s past catches up with him when his long-lost brother, Regulus, reappears with a dangerous proposal: a money heist that could change everything.
Always, Forever, Running Back To You

Always, Forever, Running Back To You

M/M
G
Updated
13.04.2025
Fandom
Harry Potter - J. K. Rowling
Characters
Regulus Black/James Potter, Sirius Black/Remus Lupin, Regulus Black & Sirius Black, Regulus Black & Remus Lupin
Tags
Blood and Injury Angst with a Happy Ending Fluff and Humor Emotional Hurt/Comfort Angst and Hurt/Comfort Domestic Fluff Alternate Universe - Muggle Regulus Black & Sirius Black Have a Good Relationship Hospitals Regulus Black & Remus Lupin Friendship James Potter Loves Regulus Black Established Sirius Black/Remus Lupin
James falls off a ladder while changing a light bulb and gets badly hurt, Regulus loses his mind, and Remus is surprisingly calm in crisis.Featuring, moonwater's book club, Sirius being a good brother, and James high on pain meds in the hospital.
He folds his socks (and turns into a werewolf)

He folds his socks (and turns into a werewolf)

G
Updated
13.04.2025
Fandom
Harry Potter - J. K. Rowling
Characters
Regulus Black, Harry Potter, James Potter/Lily Evans Potter, Remus Lupin, Sirius Black, James Potter, Peter Pettigrew, Lily Evans Potter, Minerva McGonagall, Ron Weasley, Hermione Granger, Sirius Black & Remus Lupin,
Tags
Post-Traumatic Stress Disorder - PTSD Nightmares Miscommunication Implied/Referenced Child Abuse Kidnapping Misunderstandings Trust Issues Marauders Era (Harry Potter) Hogwarts Regulus Black & Sirius Black Have a Good Relationship The Golden Trio Era (Harry Potter) Werewolf Remus Lupin
Sirius, and James and Peter, find out Remus is a werewolf during their fifth year at Hogwarts.And during Harry’s third year, Sirius kidnaps Remus and Harry after escaping Azkaban because Sirius only sometimes has common sense.
The Predatory Wasp Is Out to Get Me

The Predatory Wasp Is Out to Get Me

M/M
G
Updated
13.04.2025
Fandom
Harry Potter - J. K. Rowling
Characters
Regulus Black/James Potter, Regulus Black, Sirius Black/Remus Lupin, Remus Lupin, Sirius Black, James Potter, Euphemia Potter, Fleamont Potter
Tags
Idiots in Love Falling In Love Childhood Trauma Boys In Love Regulus Black & Sirius Black Have a Good Relationship Oneshot POV James Potter Alternate Universe - Non-Magical Summer Romance James Potter is a Little Shit Summer Vacation Regulus Black and Sirius Black Live With James Potter's Family
So it’s 2002, and James Potter is back home for the summer, just trying to relax and not deal with anything too complicated. What he didn’t sign up for? Falling head over heels for his best friend’s little brother. Yeah, Regulus Black has somehow gon...
Neon Lazers

Neon Lazers

G
Updated
13.04.2025
Fandom
Harry Potter - J. K. Rowling
Characters
Regulus Black/James Potter, Regulus Black, Sirius Black/Remus Lupin, Sirius Black, James Potter, Peter Pettigrew, Lily Evans Potter, Marlene McKinnon, Dorcas Meadowes, Regulus Black & Sirius Black
Tags
Getting Together Crack Treated Seriously How Do I Tag Regulus Black & Sirius Black Have a Good Relationship Regulus Black is a Little Shit Regulus Black and Sirius Black Both Run Away Sirius Black Finds Out About Regulus Black/James Potter Lazer tag James Potter Has a Crush on Regulus Black Why can't my brain tag right now Ahahaha run James Run
Imagine your OTP: "Bring me lazer tagging and push me in a corner and kiss me, then shoot me and walk away" Jegulus edition
but please stay

but please stay

G
Updated
13.04.2025
Fandom
Harry Potter - J. K. Rowling
Characters
Regulus Black, Sirius Black/Remus Lupin, Remus Lupin, Sirius Black, James Potter, Lily Evans Potter, Mary Macdonald (Harry Potter), Marlene McKinnon, Dorcas Meadowes, Regulus Black & Sirius Black, Evan Rosier, Barty Crouch Jr.,
Tags
Fluff Alternate Universe - Modern Setting Depression Suicidal Thoughts Brotherly Love Blood and Injury Hurt/Comfort Self-Harm Suicide Attempt Implied/Referenced Child Abuse Regulus Black & Sirius Black Have a Good Relationship Healing
Now, 6 years after his quiet retreat from the house of horrors, Sirius tossed and turned in his soft sheets, his inner turmoil quickly interrupted by a sharp knock coming from the front door. Bleary-eyed and confused, Sirius stumbled to the entryway...