Adult Content Warning

This work could have adult content. If you continue, you have agreed that you are willing to see such content.

• Yes, Continue
• No, Go Back

If you accept cookies from our site and you choose "Yes, Continue", you will not be asked again during this session (that is, until you close your browser). If you log in you can store your preference and never be asked again.

1. I'll Buy Ya Dinner Later (Kinktober 2025) by merrinbrite for Sinsational_Sinnabon

   Fandoms: Undertale (Video Game)  

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

   09 Feb 2026

   Tags

   • No Archive Warnings Apply
   • Sans (Underfell)/Reader
   • Sans (Undertale)/Reader
   • Sans (Underfell)
   • Bara Underfell Sans
   • Strangers to Lovers
   • Walking alone in a park at night
   • Soul Bond
   • Soul Sex
   • Reader is AFAB - Freeform
   • Penetration
   • Kind of a weird meet-cute?
   • It's mostly just horny
   • Bara Underfell Sans (Undertale)
   • Because big is fun
   • Smut
   • Porn with Feelings
   • These are all tags for the first shot/chapter
   • Second shot/chapter is just for if you really liked the first one and you want 11K more for some reason

   Summary

   Prompt: Strangers

   Bara Sans Underfell x Reader

   Series

   • Part 1 of Merrinbrite's Kinktober 2025

   Language:

   English

   Words:

   14,507

   Chapters:

   2/2

   Comments:

   44

   Kudos:

   246

   Bookmarks:

   39

   Hits:

   2,645