You're an engineer who works for Ebott's best research facility in one of the labs your lifelong dream after finding a journal on Mount Ebott when you were a kid.

Alternate Universe - Swapfell (Undertale).

Oblivionseight Fandoms: Undertale (Video Game) Language: English Words: 14,366 Chapters: 9/? Comments: 76 Kudos: 217 Bookmarks: 51 Hits: 3139 Join us, for the story of Atlas, the new skeleton in the house. Apparently reader lives with them now! How will the others take to another skeleton in the house? Only time will tell! Suddenly falling through the void, reader wakes up in a new body. Glass_Shifter Fandoms: Undertale (Video Game) Who knew a sudden mishap of a machine could be a savior for the both of you? Language: English Words: 955 Chapters: 1/? Kudos: 2 Bookmarks: 1 Hits: 8 All memories are forgotten of who you once were before this painful life. All of this just to survive, to live for another day. You were placed in the front lines while your brother created dangerous explosives. An alternate universe full of death and war. Both you and your brother turn into the characters that both of you created and dread to be in. When your creations turn into reality, things were never meant to go well.

Alternate Universe - Horrortale (Undertale).Alternate Universe - Echotale (Undertale).Alternate Universe - Underfell (Undertale).Alternate Universe - Fellswap (Undertale).

Alternate Universe - Underswap (Undertale).

Papyrus (Undertale)/Original Character(s).

Language: English Words: 1,927 Chapters: 4/? Comments: 9 Kudos: 61 Bookmarks: 19 Hits: 753 Or the universe gets mad Sans is messing with the timelines so it takes his soulmate as punishment. When she fell into the void with Gaster it was as if something took more of the universe than they were supposed to, screwing up the balance in the process, and this was the universe righting itself. It wasn't like it wasn't supposed to happen, it's just it wasn't supposed to happen like that. What happens when one little mistake changes the life of everyone around you.

Reader is not Frisk or Chara (Undertale).

Creator Chose Not To Use Archive Warnings.

Language: English Words: 13,591 Chapters: 5/6 Comments: 28 Kudos: 297 Bookmarks: 38 Hits: 6357īutterflyx06 Fandoms: Undertale (Video Game)

He is here to fuck and he is not leavingĪpparently, sex does cure all.

The craziest Shit I've written since 2021.

Bad Sanses | Nightmare's Gang (Undertale).

Reader is fucked by four skeletons and loves it.

But y'all will probably be down there with me.

Brought to you by Cross and his massive Dick.

Undertale sex comic sans x frisk