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1. there you are (even when i messed it up) by rxgulus

   Fandoms: Harry Potter - J. K. Rowling  

   • Mature
   • No Archive Warnings Apply
   • M/M
   • Complete Work

   09 Jul 2026

   Tags

   • No Archive Warnings Apply
   • Regulus Black & Sirius Black
   • Sirius Black/Remus Lupin
   • Regulus Black/James Potter
   • Sirius Black
   • Regulus Black
   • Remus Lupin
   • James Potter
   • Potions Accident
   • Age Regression/De-Aging
   • Child Sirius Black
   • Child Regulus Black
   • Protective Sirius Black
   • Regulus Black and Sirius Black Angst
   • Regulus Black and Sirius Black Have a Complicated Relationship
   • Regulus Black and Sirius Black Reconciliation
   • Regulus Black and Sirius Black-centric
   • Korean Regulus Black
   • Korean Sirius Black
   • Secret Relationship
   • Established Relationship
   • Dark Sirius Black
   • Dark James Potter
   • Protective Siblings
   • Implied/Referenced Child Abuse
   • Walburga Black Bashing
   • Orion Black Bashing
   • Trans Regulus Black
   • the romantic relationships are secondary to the black bros reconciliation
   • Parentification
   • Codependency
   • Angst
   • Angst with a Happy Ending
   • Hurt/Comfort

   Summary

   A potions mishap ends in Sirius and Regulus being reverted to their childhood selves. After a quick assessment, it is decided that the best way out is through, and their friends are given new insight into the relationship between the brothers as they watch them grow from adorable toddlers into the bitter teenagers they know and love.

   And maybe, somewhere along the way, the brothers find the hope they thought they lost, along with the courage to be honest with each other once and for all.

   Language:

   English

   Words:

   24,864

   Chapters:

   2/2

   Comments:

   62

   Kudos:

   718

   Bookmarks:

   134

   Hits:

   5,103