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1. As The Dark Feeds Into The Light by mimstheword, MoonMoom

   Fandoms: Undertale (Video Game)  

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

   30 Apr 2026

   Tags

   • Creator Chose Not To Use Archive Warnings
   • Sans/Sans (Undertale)
   • Sans (Undertale)
   • Sans Ensemble (Undertale)
   • Reapertale Sans (Undertale)
   • Aftertale Geno Sans (Undertale)
   • Farmtale Sans (Undertale)
   • Horrortale Sans (Undertale)
   • Dreamtale Nightmare Sans (Undertale)
   • Xtale Sans | Cross (Undertale)
   • Dusttale Sans (Undertale)
   • Underswap Sans (Undertale)
   • _____tale Sans | Ink (Undertale)
   • Error Sans (Undertale)
   • Dreamtale Sans | Dream (Undertale)
   • Something New Sans | Killer (Undertale)
   • Aftertale Geno Sans/Reapertale Sans (Undertale)
   • afterdeath
   • Farmtale Sans/Horrortale Sans (Undertale)
   • Rottoncrop
   • Dreamtale Nightmare Sans/XTale Sans | Cross (Undertale)
   • Dusttale Sans/Underswap Sans (Undertale)
   • Error Sans/_____tale Sans | Ink (Undertale)
   • Dreamtale Sans | Dream/XTale Sans | Cross (Undertale)
   • Dreamtale Sans | Dream/Something New Sans | Killer (Undertale)
   • Chronic Pain
   • light vs dark
   • Hurt/Comfort
   • Angst
   • Fluff
   • Suicidal Thoughts
   • Religious Imagery & Symbolism
   • Religious Guilt
   • Manipulation
   • Emotional Manipulation
   • One-Sided Attraction
   • Hypnotism
   • Smut
   • Light BDSM
   • Milking
   • Large Breasts
   • Ecto-Body (Undertale)
   • Ecto-Genitalia (Undertale)
   • Soul Sex
   • Dubious Consent
   • Oral Sex
   • Wet Dream
   • Obsession

   Summary

   As the Dark Feeds into the light,

   the light will shine,

   the shadows will consume the land,

   when light surrenders in bed,

   and two sides become whole,

   when love fills the soul,

   balance will be restored

    

   Ships included: Reaper (top) x Geno (bottom), Horror (tops) x Farm (bottom), Nightmare(top) x Cross(bottom), Blue(top) x Dust(bottom), Error(top) x Ink(bottom, Killer(Top) x Dream(bottom), One sided-Cross x Dream

   This is an Alternate Universe, where half the sans are beings of lights and the others are beings of darkness fighting eachother. There's smut in every chapter

   Language:

   English

   Words:

   69,866

   Chapters:

   4/7

   Comments:

   40

   Kudos:

   70

   Bookmarks:

   14

   Hits:

   1,808