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1. LIGHTS, CAMERA, ACTION! by TheMsource

   Fandoms: Undertale (Video Game)  

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

   04 Mar 2026

   Tags

   • Creator Chose Not To Use Archive Warnings
   • Sans (Undertale)/Reader
   • Sans (Undertale)
   • Reader
   • Papyrus (Undertale)
   • Original Characters
   • Original Female Character(s)
   • Undertale Ensemble
   • Angst and Fluff and Smut
   • Explicit Sexual Content
   • Explicit Language
   • Ectobiology (Undertale)
   • Fast Burn
   • Undertale Monsters on the Surface
   • Bara Underfell Sans (Undertale)
   • Underfell Sans (Undertale)
   • Bara Monsters (Undertale)
   • Sans is a Mess (Undertale)
   • No Sex Shame Here
   • Sex Positive
   • Reader-Insert Is Touch Averse
   • Alternate Universe - Underfell (Undertale)

   Summary

   Anyone that watches porn regularly has a favorite actor. Someone that they keep coming back to and that always manages to turn their breath short and make their heart slam within their chest no matter how often they watch or hear them.

   And for you, that was ‘Big Red’.

   Language:

   English

   Words:

   8,928

   Chapters:

   2/?

   Comments:

   54

   Kudos:

   106

   Bookmarks:

   16

   Hits:

   890