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1. Canis Major by itisemmynotemma96

   Fandoms: Harry Potter - J. K. Rowling  

   • Mature
   • Graphic Depictions Of Violence, Underage Sex
   • M/M
   • Work in Progress

   20 Mar 2026

   Tags

   • Graphic Depictions Of Violence
   • Underage Sex
   • Regulus Black/Sirius Black
   • James Potter/Lily Evans Potter
   • Lucius Malfoy/Narcissa Black Malfoy
   • Antonin Dolohov/Lucius Malfoy
   • Arthur Weasley/Molly Weasley
   • Bellatrix Black Lestrange/Rodolphus Lestrange
   • Rabastan Lestrange/Rodolphus Lestrange
   • Narcissa Black Malfoy/Original Male Character(s)
   • Barty Crouch Jr./Evan Rosier
   • Pandora Lovegood/Xenophilius Lovegood
   • Fabian Prewett/Gideon Prewett
   • Alphard Black/Orion Black
   • Remus Lupin/Original Male Character(s)
   • Marlene McKinnon/Dorcas Meadowes
   • Consensual Underage Sex
   • Slytherin Peter Pettigrew
   • Protective Sirius Black
   • Slytherin Sirius Black
   • Slytherin James Potter
   • Ravenclaw Remus Lupin
   • Ravenclaw Lily Evans Potter
   • Arranged Marriage
   • Time Travel Fix-It
   • side character rape
   • Slughorn is a pedophile
   • soft and innocent Regulus
   • Sirius is loyal to Regulus
   • French Black Family (Harry Potter)
   • Lucius has internalized homophobia
   • Brother/Brother Incest
   • lucius is abusive
   • Regulus comes first and the war second
   • Good Narcissa Black Malfoy
   • Evil Lucius Malfoy
   • Regulus likes girlie clothes
   • gender potions
   • Feminization
   • Background Suicide
   • Dead Dove: Do Not Eat
   • background child brides
   • Hufflepuff Regulus Black
   • Plus-Size Lily Evans Potter
   • Drug Use
   • Trans Rabastan Lestrange
   • background murder
   • True Love
   • Severus has internalized homophobia
   • Severus is emotionally abusive
   • Albino Regulus Black
   • secret dark side to Sirius
   • Manipulative Albus Dumbledore

   Summary

   After falling through The Veil and given a chance to re-do his Hogwarts years with some things different, Sirius Black also has to deal with being betrothed to his brother, Regulus Black. Balancing trying to control things along with a betrothal is hard. So is fighting feelings for his brother as he gets older and losing the memories of his first life. Will Sirius be able to change things this time and will he see his brother as a future spouse? UPDATE EVERY FRIDAY

   Language:

   English

   Words:

   115,569

   Chapters:

   19/?

   Comments:

   22

   Kudos:

   103

   Bookmarks:

   24

   Hits:

   3,632