Past Regulus Black/James Potter - Relationship FanFiction

The Valentines Conundrum

The Valentines Conundrum

M/M
Multi
G
Updated
14.04.2025
Fandom
Harry Potter - J. K. Rowling
Characters
Regulus Black, Harry Potter, Sirius Black/Remus Lupin, Remus Lupin, Sirius Black, James Potter, Draco Malfoy/Harry Potter, Draco Malfoy, Ron Weasley, Hermione Granger, Fred Weasley, George Weasley,
Tags
Fluff Mutual Pining Idiots in Love Underage Sex - Freeform Boys In Love Boys Kissing Dry Humping wolfstar No Angst Remus Lupin is So Whipped No Ginny Weasley Bashing Hermione Granger is Always Right
It was nearing 4 weeks until Valentine’s day, and Harry Potter still didn’t have one! This of course was by choice, but Draco is determined to be the one he accepts!Even if it means apologizing for being a bully.. and having to talk to his estranged...
Before He Cheats

Before He Cheats

M/M
G
Updated
14.04.2025
Fandom
Harry Potter - J. K. Rowling
Characters
Regulus Black, James Potter/Lily Evans Potter, Sirius Black, James Potter, Evan Rosier, Euphemia Potter, Fleamont Potter, Barty Crouch Jr., Pandora Lovegood, Past Regulus Black/James Potter - Relationship, Established Regulus Black/James Potter - Relationship
Tags
Implied/Referenced Cheating Chaotic Barty Crouch Jr. Regulus Black & Pandora Lovegood Friendship Chaotic Evan Rosiier
Pandora gets a vision that James will cheat on Regulus during the summer, so she pays a visit to the Potter’ and does some redecorating to James’ brand new car that he just got for his birthday.(She already paid Monty and Effie back all of the money&...
The art of being a Necromancer or how Harry Potter learned when to and not to raise the dead

The art of being a Necromancer or how Harry Potter learned when to and not to raise the dead

F/F
F/M
M/M
G
Updated
14.04.2025
Fandom
Harry Potter - J. K. Rowling
Characters
Regulus Black, Harry Potter, Fleur Delacour, Sirius Black/Remus Lupin, Remus Lupin, Sirius Black, James Potter, Lily Evans Potter, Minerva McGonagall, Severus Snape, Draco Malfoy, Ron Weasley,
Tags
Dark Harry Potter Albus Dumbledore Bashing Ron Weasley Bashing Slytherin Harry Potter Ginny Weasley Bashing Necromancy Molly Weasley Bashing Hermione Granger Bashing Harry Potter is a Little Shit Mentor Severus Snape Sane Tom Riddle The Dark Arts (Harry Potter)
Harry Potter was done with everything and everyone. Not only has his only friends abandoned him because he was, unwillingly and unknowingly mind you, entered into the stupid Tournament, but the whole school was calling him a cheater and a fraud! Agai...
sugar sweet nothings

sugar sweet nothings

M/M
G
Updated
14.04.2025
Fandom
Harry Potter - J. K. Rowling
Characters
Regulus Black, Sirius Black, James Potter, Regulus Black & Sirius Black, Barty Crouch Jr., Sirius Black & James Potter, Regulus Black & Barty Crouch Jr., Past James Potter/Lily Evans Potter - Relationship, Past Regulus Black/James Potter - Relationship, Regulus Black/Other(s), James Potter/Other(s)
Tags
Alternate Universe - Modern Setting Other Additional Tags to Be Added Light Angst Reunions Bad Writing Regulus Black & Sirius Black Have a Good Relationship Surprise Party Sirius Black Tries to Be a Good Sibling Non-Consensual Kissing By Disobeying His Brother's Wishes established dynamics Regulus Black Does Not Have a Good Time
"The first thing he noticed was that his door knob had been turned at least thirty degrees to the left."-It's Regulus' party, he'll cry if he wants to.
Why Not Me?

Why Not Me?

M/M
G
Updated
15.04.2025
Fandom
Harry Potter - J. K. Rowling
Characters
Regulus Black, James Potter, Barty Crouch Jr., Regulus Black/Barty Crouch Jr., Past Regulus Black/James Potter - Relationship
Tags
Regulus Black Needs a Hug Protective Barty Crouch Jr. Good Barty Crouch Jr. Bisexual James Potter i'm not good with tags like fr
Barty, over the years, had fallen in love with Regulus. They had been best friends since their first year and were very close. At first, Barty wanted to pretend he didn’t feel this way, but how could he ignore it? What’s there not to love about Regul...
The Exchange Student

The Exchange Student

F/F
F/M
M/M
Multi
G
Updated
15.04.2025
Fandom
Harry Potter - J. K. Rowling
Characters
Regulus Black, Original Female Character(s), Original Male Character(s), Harry Potter, Remus Lupin, Sirius Black, Severus Snape, Draco Malfoy/Harry Potter, Ron Weasley, Hermione Granger, Tom Riddle | Voldemort, Remus Lupin/Original Female Character(s),
Tags
Fluff Tooth-Rotting Fluff Time Travel Anxiety Attacks Healthy Relationships Albus Dumbledore Bashing Lesbian Character Sirius Black Lives Remus Lupin Lives Good Draco Malfoy Regulus Black Lives Morally Ambiguous Character
Nicolás Cardona-Lupin, a magical prodigy from Colombia used to excel at Castelobruxo is thrust into the chaos of Hogwarts to protect Harry Potter, the boy who was torn from his life. Unaware of the rare gift he possesses and the immense legacy his fa...
Can you save me this time (Like you saved yourself)

Can you save me this time (Like you saved yourself)

G
Updated
15.04.2025
Fandom
Harry Potter - J. K. Rowling
Characters
Regulus Black, Sirius Black/Remus Lupin, James Potter/Lily Evans Potter, Remus Lupin, Sirius Black, James Potter, Lily Evans Potter, Severus Snape, Dorcas Meadowes, Alastor "Mad-Eye" Moody, Molly Weasley, Arthur Weasley,
Tags
Time Travel Minor Character Death Regulus Black is a Little Shit Horcrux Hunting Sirius Black Tries to Be a Good Sibling Regulus Black is So Done Good Sibling Regulus Black Regulus Black comes back to LIFE hes trying they are alredy dead Regulus is really going to go through it in this one future relationship
In 1979 Regulus Black goes to the cave with a plan to destroy the dark lord. Well aware that he most likely will not survive the trip, and he is alright with that, he hasn't been alive for sometime anyway. As long as kreacher gets the Horcrux and des...
DEATH

DEATH

F/M
M/M
G
Updated
15.04.2025
Fandom
Harry Potter - J. K. Rowling
Characters
Regulus Black, Harry Potter, Remus Lupin, Sirius Black, James Potter, Lily Evans Potter, Minerva McGonagall, Severus Snape, Albus Dumbledore, Harry Potter & James Potter, Past James Potter/Lily Evans Potter - Relationship, Past Regulus Black/James Potter - Relationship
Tags
Albus Dumbledore Bashing Traumatized Harry Potter Mental Breakdown James Potter Lives Severus Snape Bashing Angry James Potter parenting is hard
James Potter is angry.His son has once again had his life endangered whilst under the care of Albus Dumbledore.And for a fake Locket?James is done with Dumbledores bullshit.
The Moon has a dark side(My Star I protect)

The Moon has a dark side(My Star I protect)

G
Updated
15.04.2025
Fandom
Harry Potter - J. K. Rowling
Characters
Regulus Black, Remus Lupin, Sirius Black, James Potter, Pandora Lovegood, Regulus Black & Pandora Lovegood, Past Regulus Black/James Potter - Relationship
Tags
Fluff Angst Platonic Cuddling Platonic Soulmates POV Pandora Lovegood no beta we die like James safely after he made reggie sad
Let it be known Pandora Lovegood does not have a temper, but when it comes to her Star her Brother? Pandora is not above murder For her brother
interlude

interlude

M/M
G
Updated
18.04.2025
Fandom
Harry Potter - J. K. Rowling
Characters
Sirius Black/Remus Lupin, Sirius Black, Barty Crouch Jr., Barty Crouch Jr./Evan Rosier, mentions of Remus Lupin, Mentions of James Potter - Character, Past Regulus Black/James Potter - Relationship, Past Barty Crouch Jr./Regulus Black, Past Barty Crouch Jr./Sirius Black, mentions of Regulus Black, Mentions of Evan Rosier
Tags
Angst Canon Universe Avoidance like lots of problem ignoring it's not that bad though its kind of sweet substance abuse (alcohol and drugs) it's really short so theres not much to say also the barty x sirius thing is like a one time hookup like they were never actually together I'll explain in notes Yeah that's it
Interlude (noun): a short period of time in which a situation is different from what comes before and after itRegulus Black's death brings his brother and his best friend, who are on opposites sides of the war, back to each other to mourn their loss...
Regulus Black and the time he wasn't dead

Regulus Black and the time he wasn't dead

M/M
G
Updated
19.04.2025
Fandom
Harry Potter - J. K. Rowling
Characters
Regulus Black, Original Female Character(s), Original Male Character(s), Sirius Black/Remus Lupin, Remus Lupin, Sirius Black, Regulus Black & Sirius Black, Regulus Black/Original Male Character(s), Past Regulus Black/James Potter - Relationship
Tags
Tags May Change Past Regulus Black/James Potter Regulus Black Lives Gay Regulus Black POV Regulus Black Regulus Black in the Muggle World Doctor regulus black
Regulus black is alive. Yes you read that correctly. Me, regulus black, death eater, sole heir of the Nobel And Most Aintent House Of Black was not dead. I played my part in making sure Voldemort could die then I left and lived my life. I went to uni...
The war left us behind

The war left us behind

G
Updated
19.04.2025
Fandom
Harry Potter - J. K. Rowling
Characters
Regulus Black, Harry Potter, Remus Lupin, Albus Dumbledore, Remus Lupin & Harry Potter, Kreacher (Harry Potter), Regulus Black & Harry Potter, Past James Potter/ Lily Evans, Past Regulus Black/James Potter - Relationship, Remus Lupin & Regulus Black, Past Remus Lupin/ Sirius Black
Tags
Albus Dumbledore Bashing Regulus Black Lives Past Jegulus kinda sad regulus raises harry regulus destroyed all the Horcruxes James and Lily still died he/they Reggie Reg and Remus become friends
What if Regulus Black lived? What if they destroyed all the Horcruxes in time for Voldemort killing curse to be reflected back at him as he tried to kill baby Harry Potter? What if Regulus took it upon themselves to take care of the orphan boy himsel...