Established Regulus Black/James Potter 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...
"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.
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.
I Can Finally See The Light Once More

I Can Finally See The Light Once More

G
Updated
13.04.2025
Fandom
Harry Potter - J. K. Rowling
Characters
Regulus Black/James Potter, Regulus Black, Original Female Character(s), Sirius Black/Remus Lupin, Remus Lupin, Sirius Black, James Potter, Minor Characters
Tags
Angst with a Happy Ending Hurt/Comfort Trans Male Character Emotional Hurt/Comfort Angst and Hurt/Comfort Fluff and Angst Anxiety Albus Dumbledore Bashing Kid Fic Regulus Black & Sirius Black Have a Good Relationship Parenthood Sorry Not Sorry
James was sitting curled up with Padfoot on the couch of Remus and Sirius's cottage in south Wales, the same way he had spent so many other nights, especially in the past few months. There was a rare form of comfort that James was able to feel when h...
And I'll watch the clothes build up by my door (like dead bodies of the people I loved before.)

And I'll watch the clothes build up by my door (like dead bodies of the people I loved before.)

M/M
G
Updated
13.04.2025
Fandom
Harry Potter - J. K. Rowling
Characters
Regulus Black/James Potter, Regulus Black, James Potter
Tags
Angst Suicidal Thoughts Hurt/Comfort Implied/Referenced Self-Harm Alternate Universe - Muggle Hopeful Ending Pet Names James Potter is Not Okay Established Regulus Black/James Potter lying James Potter is having a depressive episode James Potter desperately needs a hug
James Potter hasn't left his bed all week, and when Regulus goes to check up on him, he falls apart.
All That You've Suffered

All That You've Suffered

M/M
G
Updated
13.04.2025
Fandom
Harry Potter - J. K. Rowling
Characters
Regulus Black/James Potter, Sirius Black/Remus Lupin, Marlene McKinnon, Frank Longbottom, Regulus Black & Barty Crouch Jr. & Pandora Lovegood & Dorcas Meadowes & Evan Rosier, Sirius Black & Remus Lupin & James Potter
Tags
Fluff and Humor Emotional Hurt/Comfort Fluff and Angst Domestic Fluff Chronic Pain Light Angst Chronic Illness Caretaking Alternate Universe - Muggle Regulus Black & Sirius Black Have a Good Relationship Fluff and Hurt/Comfort Remus Lupin Uses a Cane
James has a mysterious chronic illness that he's hidden his entire life for fear of being seen as weak by his friends, and routinely pushes his limits bending over backwards for everyone in his life while he suffers silently. When he pushes too hard...
Was it perfect? Was it simple?

Was it perfect? Was it simple?

M/M
G
Updated
13.04.2025
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, Lily Evans,
Tags
Alternate Universe - College/University Domestic Fluff Muggle AU Minor Marlene McKinnon/Dorcas Meadowes Pet Names University they're so cute SO MUCH FLUFF Minor Mary Macdonald/Lily Evans Potter Established Regulus Black/James Potter They're inlove in a secret relationship
Regulus Black has a good day with his boyfriend, James Potter. Somehow, as he experiences it, he knows it will come back to him as soft and sweet memories for years to come.
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.
The mournful sculptor

The mournful sculptor

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, Dorcas Meadowes, Regulus Black & Dorcas Meadowes
Tags
Angst Alternate Universe - College/University Minor Character Death Death James Potter Dies Art Minor Sirius Black/Remus Lupin Established Regulus Black/James Potter art major regulus and regulus is left mourning regulus is a sculptor
Regulus is an Art Major at his college. He’s only 24 and attempting to get over an accident happening on March 27th, two years ago.
Your Love Is Tried & True Blue

Your Love Is Tried & True Blue

M/M
G
Updated
14.04.2025
Fandom
Harry Potter - J. K. Rowling
Characters
Regulus Black/James Potter, Regulus Black & Sirius Black, Euphemia Potter/Fleamont Potter, Regulus Black & Dorcas Meadowes
Tags
Angst with a Happy Ending Fluff and Humor Light Angst Regulus Black & Sirius Black Have a Good Relationship Fluff and Hurt/Comfort James Potter Loves Regulus Black Healing Alternate Universe - Modern with Magic Regulus Black Needs a Hug Regulus Black Has an Eating Disorder Regulus Black Loves James Potter Indian James Potter
James invites Regulus to dinner to meet his parents for the first time, and Regulus is terrified that he will mess it all up.A fluffier Regulus eating disorder fic because he deserves all the love and healing
The Stars We Chase

The Stars We Chase

M/M
G
Updated
14.04.2025
Fandom
Harry Potter - J. K. Rowling
Characters
Regulus Black/James Potter, Regulus Black, James Potter
Tags
Secret Relationship Gay Kind Of One Shot Short One Shot but they don’t know Cute Hogwarts Astronomy Tower Established Regulus Black/James Potter Open Ending Gay Love secret meetings
Astronomy Tower meeting between James and Regulus. Just a cute little Jegulus/Starchaser/Sunkeeper story.
Pain Is Cold Water

Pain Is Cold Water

M/M
G
Updated
14.04.2025
Fandom
Harry Potter - J. K. Rowling
Characters
Regulus Black/James Potter, Sirius Black/Remus Lupin, Regulus Black & Sirius Black, Regulus Black & Barty Crouch Jr. & Pandora Lovegood & Dorcas Meadowes & Evan Rosier, Regulus Black & Walburga Black
Tags
Depression Emotional Manipulation Heavy Angst Blood and Injury Angst with a Happy Ending Emotional Hurt/Comfort Implied/Referenced Self-Harm Fluff and Angst Domestic Fluff Implied/Referenced Child Abuse Mental Health Issues Caretaking
Regulus is no contact with his mother because of her manipulative tendencies and her mismanagement of her mental health, making their relationship an abusive one. But when she contacts him on his birthday, Regulus cannot help but pick up the phone, a...
home at last

home at last

F/F
F/M
M/M
G
Updated
14.04.2025
Fandom
Harry Potter - J. K. Rowling
Characters
Regulus Black/James Potter, Regulus Black, Harry Potter, Remus Lupin, Sirius Black, James Potter, Peter Pettigrew, Lily Evans Potter, Mary Macdonald (Harry Potter), Severus Snape, Draco Malfoy, Lucius Malfoy,
Tags
Fluff Angst Dead Dove: Do Not Eat Albus Dumbledore Bashing Established Mary Macdonald/Lily Evans Potter French Regulus Black French Sirius Black Order of the Phoenix (Harry Potter) Regulus Black is Harry Potter's Parent Established Regulus Black/James Potter Peter Pettigrew Bashing Peter Pettigrew Being An Asshole
war time and raising harry
Depollute me, pretty baby, suck the rot right out of my bloodstream

Depollute me, pretty baby, suck the rot right out of my bloodstream

M/M
G
Updated
14.04.2025
Fandom
Harry Potter - J. K. Rowling
Characters
Regulus Black/James Potter, Regulus Black, James Potter
Tags
Angst Guilt Trans Regulus Black Suicide Notes Established Regulus Black/James Potter Writer Regulus Black Regulus black felt suicidal before he transitioned Regulus Black/James Potter breakup
James Potter has never been patient, so it's not unexpected that he gets a bit nosy and starts looking through Regulus' drawers. What is unexpected, is the contents of the note he finds and the consequences he receives for reading it.
Song Association with The Marauders!

Song Association with The Marauders!

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, Dorcas Meadowes, Sirius Black & Remus Lupin & Peter Pettigrew & James Potter
Tags
Fluff and Humor Not Beta Read I Wrote This Instead of Sleeping Marauders Era (Harry Potter) One Shot Interviews Established Sirius Black/Remus Lupin just for fun Marauders are a Band (Harry Potter) Happy Established Regulus Black/James Potter You're Welcome
The Marauders have been invited to the set of Elle to do a Song Association interview!
Never ask stupid questions

Never ask stupid questions

G
Updated
14.04.2025
Characters
Regulus Black/James Potter, Regulus Black, Sirius Black/Remus Lupin, Remus Lupin, Sirius Black, James Potter, Peter Pettigrew, Mary Macdonald (Harry Potter), Lily Evans
Tags
Marauders Era (Harry Potter) wolfstar Regulus Black & Sirius Black Have a Good Relationship Starchaser Platonic MoonWater Established Sirius Black/Remus Lupin Established Regulus Black/James Potter Sassy Regulus Black No Voldemort Scared James Potter offended Sirius black Regulus and Sirius being in love
James asks a stupid question and gets traumatized by the answer he gets.
Falling farther

Falling farther

M/M
Multi
Other
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, Evan Rosier, Barty Crouch Jr., Barty Crouch Jr./Peter Pettigrew/Evan Rosier
Tags
Slow Burn Suicidal Thoughts Hurt/Comfort Implied/Referenced Torture Self-Harm Implied/Referenced Self-Harm Implied/Referenced Child Abuse Implied/Referenced Rape/Non-con Implied/Referenced Abuse Implied/Referenced Domestic Violence Regulus Black-centric Eating Disorders
Love Is A Gentle Thing

Love Is A Gentle Thing

M/M
G
Updated
14.04.2025
Fandom
Harry Potter - J. K. Rowling
Characters
Regulus Black/James Potter, Kreacher (Harry Potter)
Tags
Fluff and Humor Domestic Fluff Light Angst Dialogue Heavy Caretaking Fluff and Hurt/Comfort Sickfic James Potter Loves Regulus Black Alternate Universe - Non-Magical French Regulus Black Bathing/Washing Fever
Regulus graduated a year ago from Le Cordon Bleu in Paris, filled with pride that set him alight and a sharp determination to open the best French patisserie London has ever seen. For the last eight months, he's been obsessively trying new recipes an...
The Song For The Grave That I Dug

The Song For The Grave That I Dug

F/M
M/M
G
Updated
14.04.2025
Fandom
Harry Potter - J. K. Rowling
Characters
Regulus Black/James Potter, Sirius Black/Remus Lupin, Remus Lupin, Peter Pettigrew, Tom Riddle | Voldemort, Albus Dumbledore, Sirius Black & James Potter, Harry Potter & James Potter & Lily Evans Potter
Tags
Angst Angst with a Happy Ending Nightmares Emotional Hurt/Comfort Angst and Hurt/Comfort Grief/Mourning First Wizarding War with Voldemort (Harry Potter) Regulus Black & Sirius Black Have a Good Relationship Lily Evans Potter Dies James Potter Loves Regulus Black Voldemort Dies (Harry Potter) Morally Grey Albus Dumbledore
Halloween 1981 goes a little bit differently because Regulus Black is a Seer, and he has a prophetic vision the night Voldemort attacks the Potters.
Happy Halloween!

Happy Halloween!

F/F
F/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, Evan Rosier, Minor or Background Relationship(s), Barty Crouch Jr., Pandora Lovegood,
Tags
Fluff Alternate Universe - Modern Setting Kissing No Smut Pandora Lovegood and Evan Rosier are Twins Alternate Universe - Everyone Lives/Nobody Dies James Potter Loves Regulus Black Luna Lovegood & Harry Potter Friendship No Angst Established Sirius Black/Remus Lupin Regulus Black Loves James Potter Established Barty Crouch Jr./Evan Rosier
Halloween party at the Potter-Blacks.