they think they going crazy FanFiction

How to tell you?

How to tell you?

F/F
F/M
M/M
G
Updated
11.04.2025
Fandom
Undertale (Video Game)
Characters
Alphys/Undyne (Undertale), Sans (Undertale), Papyrus & Sans (Undertale), Sans/Sans (Undertale), Mettaton/Papyrus (Undertale), errorink(mentioned), kustard(mentioned), Skeleton(s) (Undertale)
Tags
Fluff and Humor Established Relationship idk how to tag fucking with the originals they think they going crazy
Just a tipical day, but something in the air.Sans just don't know how to tell something to his family.So he got some help.