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1. Sunset Boulevard by Helpimagayfish, Jannthebean

   Fandoms: Undertale (Video Game), undertale mutiverse  

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

   20 Aug 2025

   Tags

   • Creator Chose Not To Use Archive Warnings
   • Cross x Dream - Relationship
   • cream ship - Relationship
   • Killer x Nightmare - Relationship
   • Dream x Cross
   • Nightmare x Killer
   • NightKiller
   • Xunshine
   • Driller - Relationship
   • Killer x Dream
   • Dream x Killer
   • Kross - Relationship
   • Killer X cross
   • cross x killer - Relationship
   • Nightcross - Relationship
   • Nightmare x Cross
   • Cross x Nightmare
   • KillerCreamMare
   • killer x dream x cross x nightmare
   • Cross sans
   • Dream Sans
   • Killer Sans - Character
   • Nightmare Sans
   • Undertale AU
   • Alternate Universe - Undertale Multiverse | UTMV (Undertale)
   • Studio verse
   • studio au
   • Poly shipping
   • Fluff and Smut
   • Angst and Fluff and Smut
   • Gay Sex
   • Studioverse
   • Sanscest - Freeform
   • sanscest smut
   • utmv smut
   • Polyamory
   • poly ship

   Summary

   Dream was so sure that Cross might have been the one. Even in the short time they’d been together, he would have told you that things had been perfect. But when a past history between Nightmare and Cross is revealed, it throws a wrench in the works and sets into motion a series of events that spiral relationships out of control. With things crashing down around them, it’s hard to say if things will ever find a balance again.

   Language:

   English

   Words:

   65,438

   Chapters:

   9/?

   Comments:

   135

   Kudos:

   285

   Bookmarks:

   29

   Hits:

   7,401