Various AU Sanses X DimensionTraveler!Reader) This is Unexpected

3~ Through The Portal, An Unexpected Encounter (Bad sanses x Reader x Star Sanses)

Echofell

Popular Sans Various X Reader Stories

Echotale Fanfiction Stories

The One Thing That They Care About (Sans AU x Reader x Papyrus AU) - My Starlight - Wattpad

Unexpected Visitors (AU!Sans x Female!Reader Story)

Sans Au / Undertale 2 - xXNekoLadyXx - Wattpad

Unexpected Guests: Chapter 8, Part 12 by UndertaleThingems on DeviantArt

Echotale Stories

The Timeline Traveler. AU Sanses X Reader - ShadowWolf1472 - Wattpad