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1. Nightmare Has A Really Happy New Years by vicen_non

   Fandoms: Undertale (Video Game)  

   • Explicit
   • No Archive Warnings Apply
   • M/M, Multi
   • Work in Progress

   05 Jan 2026

   Tags

   • No Archive Warnings Apply
   • sans/sans
   • Sans Ensemble (Undertale)
   • Dreamtale Nightmare Sans (Undertale)
   • Swapdreamtale Sans | Dream (Undertale)
   • Swapdreamtale Nightmare Sans (Undertale)
   • Dreamtale Sans | Dream (Undertale)
   • Dreamtale Nightmare Sans/Dreamtale Sans | Dream (Undertale)
   • Swapdreamtale Nightmare Sans/Swapdreamtale Sans | Dream (Undertale)
   • swapdreamtale nightmare sans/dreamtale nightmare sans (undertale)
   • Swapdreamtale Sans | Dream (Undertale)/Dreamtale Nightmare Sans (Undertale)
   • New Years
   • Bottom Dreamtale Nightmare Sans (Undertale)
   • Penetrative Sex
   • Oral Sex
   • Swad Is His Own Warning
   • Plot What Plot/Porn Without Plot
   • Brother/Brother Incest
   • Suits
   • Clothed Sex
   • Ecto-Genitalia (Undertale)
   • Ecto-Penis (Undertale)
   • Ecto-Body (Undertale)
   • Dirty Talk
   • Dominant Bottom
   • Begging
   • Sexual Overstimulation
   • Buckets of cum
   • Unrealistic Sex
   • Multiple Orgasms
   • Multiple Relationships
   • Background Poly
   • Denial of Feelings
   • Self-Indulgent
   • Not Beta Read
   • I Wrote This Instead of Sleeping
   • I Wrote This While Listening to Nine Inch Nails
   • Drunk Sex
   • Porn with Feelings
   • BDSM
   • Grinding
   • Light Masochism
   • Humiliation Kink
   • Switch Nightmare Sans
   • switch swad
   • Crying During Sex
   • Scent Kink
   • Biting
   • Incest Kink
   • Large Cock
   • Belly Bulge
   • Spit Kink
   • Breeding Kink
   • Fantasizing
   • Dialogue Heavy
   • Shame
   • Tentacles
   • Tentacle Sex
   • Anal Sex
   • top swan
   • top swad
   • Dom/sub Play
   • Creampie
   • cum slut nightmare sans
   • inexperienced swan
   • Older Man/Younger Man
   • Just the Tip
   • Mildly Dubious Consent
   • Swad Whimpers
   • Forced Orgasm
   • Dehumanization

   Summary

   Nightmare attends the New Years party at Swad's palace.

   Series

   • Part 34 of swapdream MENTION 🤨⁉️

   Language:

   English

   Words:

   7,279

   Chapters:

   3/5

   Comments:

   13

   Kudos:

   59

   Bookmarks:

   10

   Hits:

   834