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1. Public Bookmark 28

   The Only Blood That Matters by Anonymous

   Fandoms: Avatar: The Last Airbender (Cartoon 2005), Avatar: The Last Airbender: Chronicles of the Avatar Novels - Various  

   • Explicit
   • Creator Chose Not To Use Archive Warnings
   • F/M
   • Work in Progress

   29 Apr 2026

   Tags

   • Creator Chose Not To Use Archive Warnings
   • Azula/Zuko (Avatar)
   • Azula & Zuko (Avatar)
   • Azula (Avatar)
   • Zuko (Avatar)
   • Sibling Incest
   • Twincest
   • Smut
   • Pregnancy
   • Shirtless Zuko
   • Aged up characters
   • Breeding
   • Breeding Kink
   • Mother Azula
   • Protective Zuko (Avatar)
   • Grandpa Ozai in Prison
   • Size Difference
   • Self-Indulgent
   • Don't Like Don't Read
   • Happy Ending
   • Explicit Sexual Content
   • Ragebaiting As Foreplay
   • Zucest - Freeform
   • Alternate Universe
   • Incest
   • Minor Gaang appearance
   • Brother/Sister Incest
   • Azula is Bad at Feelings (Avatar)
   • Sexual Tension
   • Forbidden Love

   Summary

   They were born minutes apart, two halves of a singular spark. They were never meant to be separate, and they certainly were never meant to be moral.

   Series

   • Part 1 of anon's zucest fics

   Language:

   English

   Words:

   6,398

   Chapters:

   2/3

   Collections:

   1

   Comments:

   47

   Kudos:

   228

   Bookmarks:

   28

   Hits:

   4,235

   Bookmarked by Sodbileg

   22 Apr 2026