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1. Perfidia by moonday_ghoul

   Fandoms: Deltarune (Video Game), Undertale (Video Game)  

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

   15 Feb 2026

   Tags

   • No Archive Warnings Apply
   • Spamton G. Spamton/Tenna
   • Mettaton (Undertale)/Tenna (Deltarune) - mentioned
   • Spamton G. Spamton
   • Tenna (Deltarune)
   • Mettaton (Undertale)
   • Unhappy Ending
   • for now at least
   • reunion is incoming i promise
   • Toxic Yaoi
   • Trans Spamton G. Spamton
   • Trans Male Character
   • Spamton G. Spamton Is A Mess
   • Spamton G. Spamton is Bad at Feelings
   • Addison Spamton G. Spamton
   • Bird Spamton G. Spamton
   • Tenna has BPD | Borderline Personality Disorder (Deltarune)
   • Possessive Tenna (Deltarune)
   • Tenna is a Mess (Deltarune)
   • Big Shot Era Spamton
   • Big Shot Era Tenna (Deltarune)
   • Post-Big Shot Era Spamton
   • Homelessness
   • Angst
   • Angst and Feels
   • Heavy Angst
   • Hurt No Comfort
   • no yet
   • Cunnilingus
   • Penis In Vagina Sex
   • Size Difference
   • Size Kink
   • Breeding Kink
   • Marriage Proposal
   • Sort Of
   • Discussion of Pregnancy
   • Pregnancy Kink
   • no actual pregnancy
   • Belly Rubs
   • Belly Bulge
   • Belly Kink
   • Songfic
   • just a little bit
   • its not cheating but spamton reacts like it is
   • im exploding them with my mind
   • Self-Harm
   • only very slightly
   • its spamton exhibiting bird behaviour and overpreening
   • and like pulling his feathers out
   • but i thought id tag it just in case
   • Internalized Homophobia
   • Period-Typical Homophobia
   • Internalized Transphobia
   • Homecity AU

   Summary

   Buried in the trash, Spamton receives word that Tenna's moved on.

   Series

   • Part 3 of Homecity AU Spamtenna

   Language:

   English

   Words:

   6,718

   Chapters:

   1/1

   Comments:

   8

   Kudos:

   59

   Bookmarks:

   4

   Hits:

   742