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1. The 12 Thefts of Giftmas by Salzab

   Fandoms: Undertale (Video Game)  

   • Not Rated
   • No Archive Warnings Apply
   • Gen
   • Complete Work

   24 Aug 2025

   Tags

   • No Archive Warnings Apply
   • No Romantic Relationship(s)
   • Sans (Undertale)
   • Bittybone(s) (Undertale)
   • Underfell Sans (Undertale)
   • Alternate Universe - Bittybones (Undertale)
   • Bittybones Underfell Sans (Undertale)
   • Bittybones Adoption (Undertale)
   • Bittybones as Pets (Undertale)
   • Bittybones Abuse (Undertale)
   • Minor Swearing
   • Minor Original Character(s)
   • Reader-Insert
   • Bittybones Bitty Fighting (Undertale)
   • Original Character(s)
   • Angst with a Happy Ending
   • When he finally gets a bitty-bath he's gonna LUXURIATE in it
   • bubbles and all

   Summary

   A little Edgy bitty comes into your life in the giftmas season, choosing you to plague.

   He's worse for wear, wont let you near him, and seems to only want to steal your stuff.

   He wasn't always this way though...

   A Bitty assigned to you request, for Micespaceart/several-things on Tumblr

   This has turned into a 2-parter, by the way!

   Language:

   English

   Words:

   8,843

   Chapters:

   3/3

   Comments:

   10

   Kudos:

   22

   Bookmarks:

   5

   Hits:

   229