Sirius Black Finds Out About Regulus Black/James Potter FanFiction

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
It’s called a relationship

It’s called a relationship

M/M
G
Updated
14.04.2025
Fandom
Harry Potter - J. K. Rowling
Characters
Regulus Black/James Potter, Regulus Black, Sirius Black/Remus Lupin, Remus Lupin, Sirius Black, James Potter, Sirius Black & James Potter, Regulus Black & Remus Lupin
Tags
Alternate Universe - Modern Setting Regulus Black & Sirius Black Have a Good Relationship Regulus Black & Remus Lupin Friendship Sirius Black Finds Out About Regulus Black/James Potter they live together no beta we die like all of them in canon Established Regulus Black/James Potter Dramatic Sirius Black and so does James with Sirius Regulus Black is unbothered
Regulus Black comes home and spills his and James' biggest secret by accident (or is it (; ) to the person who is guaranteed to react the absolute worst.
For My Stars

For My Stars

F/F
F/M
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, Lucius Malfoy,
Tags
Angst with a Happy Ending Regulus Black and Sirius Black Angst Regulus Black and Sirius Black Both Run Away Abusive Walburga Black Animagus Regulus Black Regulus Black & Pandora Lovegood Friendship Indian James Potter Warning: Walburga Black Sirius Black Finds Out About Regulus Black/James Potter Regulus Black & Sirius Black Friendship THE BLACK BROTHERS ARE FRIENDS OK THERE WILL BE ANGST BUT THEY STILL LOVE EACH OTHER narcissa is an icon
It's summer before Sirius's sixth year, and he cannot and will not take it anymore. He devises a plan to run away to live with James, hoping to take Regulus with him, and the two share secrets, stories and go through more drama in the span of two wee...
What Was Once Ours

What Was Once Ours

F/F
M/M
G
Updated
11.04.2025
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, Peter Pettigrew, Lily Evans Potter, Mary Macdonald (Harry Potter), Marlene McKinnon, Dorcas Meadowes,
Tags
Angst Out of Character Sad Ending Underage Drinking Bad Spelling & Grammar POV James Potter Regulus Black and Sirius Black Angst Regulus Black Needs a Hug Desi James Potter POV Regulus Black Romeo and Juliet References POV Sirius Black
Regulus is filled of pain after his brother ran away from home, and he blames James Potter for taking him away.James stumbles upon Regulus one night and refuses to leave him alone. Regulus finds himself falling in love. Passion and desire turn into...
campfire hearts

campfire hearts

F/F
M/M
G
Updated
14.04.2025
Fandom
Harry Potter - J. K. Rowling
Characters
Regulus Black/James Potter, Regulus Black, Remus Lupin, Sirius Black, James Potter, Peter Pettigrew, Lily Evans Potter, Mary Macdonald (Harry Potter), Marlene McKinnon, Dorcas Meadowes, Evan Rosier, Barty Crouch Jr.,
Tags
Marauders Era (Harry Potter) BAMF Lily Evans Potter Background rosekiller Alternate Universe - Summer Camp Pandora Lovegood is a Rosier Background Wolfstar James Potter & Lily Evans Potter Friendship Sirius Black Finds Out About Regulus Black/James Potter Sirius Black Being an Idiot James Potter is Bad at Flirting Unhinged Regulus Black Pandora Lovegood & James Potter Friendship
"If i'm dating Reg before the end of this camp, you'll do my laundry for a week.""Okay. But if i'm dating Pandora before you're dating Reg, you'll do my laundry for three weeks.""Bet." James and Lily go to a summer camp and bet on who will find love...
Easy Smiles

Easy Smiles

M/M
G
Updated
14.04.2025
Fandom
Harry Potter - J. K. Rowling
Characters
Regulus Black/James Potter, Regulus Black, Sirius Black/Remus Lupin, Remus Lupin, Sirius Black, James Potter, Barty Crouch Jr.
Tags
Smut Fluff Modern Era Mutual Masturbation Rough Sex Shameless Smut Masturbation Swearing Banter Vaginal Sex Homophobia Kind Of
Regulus has lived with his brother, his brother's boyfriend, and his brother's best friend for the better part of two years. He's been in a toxic on again, off again relationship with Barty for about a year and a half of that. When Sirius finally get...
All good things come to an end?

All good things come to an end?

M/M
G
Updated
14.04.2025
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
Tags
Angst with a Happy Ending Fluff and Angst Blood and Violence Crack Treated Seriously Alternate Universe - Vampire Human/Vampire Relationship Regulus Black is Bad at Feelings Blood Drinking Regulus Black and Sirius Black Angst Protective Sirius Black James Potter is So Whipped Sirius Black Finds Out About Regulus Black/James Potter
Regulus and James have been careful about keeping Sirius in the dark about their relationship... but how long can that peace realistically last?Vampire/Muggle AU
James Fleamont Potter, when I catch you!

James Fleamont Potter, when I catch you!

M/M
G
Updated
14.04.2025
Fandom
Harry Potter - J. K. Rowling
Characters
Regulus Black/James Potter, Regulus Black, Remus Lupin, Sirius Black, James Potter, Peter Pettigrew
Tags
Fluff and Humor Happy Ending Regulus Black & Sirius Black Have a Good Relationship Everyone Is Gay Author Is Sleep Deprived Regulus Black is a Little Shit Alternate Universe - Everyone Lives/Nobody Dies Gay Regulus Black Gay James Potter Background Wolfstar obviously Hogwarts Era
“Also, my little brother doesn't commit such impure acts."Silence reigns in the room. Regulus wants to die, and for a moment he thinks everyone present is aware of what he and James have going on. His friends' giggles have started to be heard. But it...
I can go anywhere I want, just not home.

I can go anywhere I want, just not home.

M/M
G
Updated
14.04.2025
Fandom
Harry Potter - J. K. Rowling
Characters
Regulus Black/James Potter, Regulus Black, Sirius Black, James Potter, Euphemia Potter, Fleamont Potter, Walburga Black
Tags
Angst with a Happy Ending Hurt/Comfort Implied/Referenced Child Abuse Relationship Reveal Regulus Black-centric Oneshot Regulus Black Lives James Potter Loves Regulus Black Running Away James Potter is So Whipped Abusive Walburga Black Good Regulus Black
Regulus declines the dark mark, and in a moment of desperation, flees to the Potter House.
The Group Project

The Group Project

F/F
M/M
G
Updated
14.04.2025
Fandom
Harry Potter - J. K. Rowling
Characters
Regulus Black/James Potter, Regulus Black, Sirius Black/Remus Lupin, James Potter, Peter Pettigrew, Lily Evans Potter, Marlene McKinnon, Severus Snape, Dorcas Meadowes, Marlene McKinnon/Dorcas Meadowes, Regulus Black & Sirius Black, Evan Rosier,
Tags
Fluff Angst Fluff and Humor Angst and Hurt/Comfort Fluff and Angst Friendship/Love Child Abuse Angst and Humor Gay Sirius Black Everyone Is Gay Gay Panic Regulus Black Lives
Regulus Balck is a man of many secrets, but he is smart enough to strategically to keep them hidden.But this all changes when he gets paired in a study group with his crush, disowned brother and his impossible best friend...
Summer dreams

Summer dreams

F/F
F/M
M/M
G
Updated
14.04.2025
Fandom
Harry Potter - J. K. Rowling
Characters
Regulus Black/James Potter, Regulus Black, Remus Lupin, Sirius Black, James Potter, Peter Pettigrew, Lily Evans Potter, Mary Macdonald (Harry Potter), Marlene McKinnon, Dorcas Meadowes, Narcissa Black Malfoy, Evan Rosier,
Tags
Fluff and Angst Enemies to Friends to Lovers Remus Lupin & Lily Evans Potter Friendship Minor Marlene McKinnon/Dorcas Meadowes Regulus Black & Remus Lupin Friendship James Potter Loves Regulus Black Bad Parent Walburga Black Gay Regulus Black Werewolf Remus Lupin Minor James Potter/Lily Evans Potter Established Sirius Black/Remus Lupin French Regulus Black
a cute Jegulus fic after Sirius and Regulus run away and move in with the potters
James Potter is fine

James Potter is fine

M/M
G
Updated
14.04.2025
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, Marlene McKinnon/Dorcas Meadowes,
Tags
Alternate Universe - College/University Childhood Friends Marauders Friendship (Harry Potter) Past Regulus Black/James Potter Regulus Black and Sirius Black Angst Sirius Black & James Potter Friendship Modern Marauders (Harry Potter) Sirius Black Finds Out About Regulus Black/James Potter Depressed James Potter Abusive Black Family (Harry Potter) friends to lovers to exes to lovers british pub culture
James Potter is completely and utterly fine. That is until he goes on a night-out and stumbles upon a demon from his past.ORJames Potter reconnects with Regulus Black and learns that you have to allow yourself to break before you can heal.
things money can't buy

things money can't buy

F/F
F/M
M/M
G
Updated
15.04.2025
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, Marlene McKinnon/Dorcas Meadowes,
Tags
Fluff Fluff and Humor Tooth-Rotting Fluff Texting Idiots in Love Found Family Light Angst Forced Proximity Happy Ending Strangers to Lovers Marauders Era (Harry Potter) Marauders
Fame can lead to a number of things. Money. Scandals. Even a sarcastic, above-average-height Welsh man named Remus Lupin. What happens when A-list celebrity Sirius Black finds himself confined to a countryside coffee shop with a few average, lower cl...
My blood runs cleaner than yours

My blood runs cleaner than yours

F/F
M/M
G
Updated
15.04.2025
Fandom
Harry Potter - J. K. Rowling
Characters
Regulus Black/James Potter, Regulus Black, Sirius Black/Remus Lupin, Remus Lupin, Sirius Black, James Potter, Lily Evans Potter, Pandora Lovegood, Pandora Lovegood/Lily Evans Potter
Tags
Fluff Not Canon Compliant Arranged Marriage Pureblood Culture (Harry Potter) Pureblood Politics (Harry Potter) Pureblood Society (Harry Potter) Morally Grey James Potter Sirius Black Finds Out About Regulus Black/James Potter Marriage Contracts
Pureblood marriages are still very much a thing. It's normal, everyone does it. No matter if your last name is Potter, Black or Lupin.James accepts it.Sirius runs from it.And Remus? Well Remus doesn't care at all.