Undertale (finished)
40 stories
Bottom Nightmare oneshots by Error-GenderNotFound
Bottom Nightmare oneshots
Error-GenderNotFound
  • Reads 7,206
  • Votes 121
  • Parts 5
Just a bunch of bottom Nightmare oneshots.
Puns ( Sans x reader ) by mettatonneo
Puns ( Sans x reader )
mettatonneo
  • Reads 499,124
  • Votes 16,433
  • Parts 12
Warning! There is a chance that there will be spoilers for the pacifist run of undertale. I recommend finishing that before reading this. There won't be any spoilers for the no mercy run, so don't worry about that! Also, don't worry about anything NSFW/lemon if that's not what you're into-there won't be any of that here. You're a human that's fallen down into the underground. You've decided that you'll stay instead of going home after fighting Asgore and sparing him. Now, you had made some great friendships while in the underground-but one of those friends in particular was one you'd like to be a little more than friends with... Aaaa an X reader fic! I haven't done one of these before, but I hope you still like it!
Soulbound || Sans x Reader by StrawberryMilkSnake
Soulbound || Sans x Reader
StrawberryMilkSnake
  • Reads 13,363
  • Votes 564
  • Parts 14
When a situation with a dying human ends up with you absorbing their soul, you panic (like any unprepared monster would). Suddenly Undyne is hunting you down, so you rope the mysterious skeleton next door into helping you. Which he does--in a very Sans way. And who knows? Maybe pretending to be his girl will pay off. | - Classic Sans x Monster Reader - Fake dating turns into real dating - One (1) very mysterious skeleton & one (1) very awkward reader - Papyrus is so sweet and innocent, I love him - Monsters really are in the wrong for killing children tho - I love happy endings and hate tension so expect an easy, relaxing read
Helping A Friend Out by W0rst_Nightmare
Helping A Friend Out
W0rst_Nightmare
  • Reads 342
  • Votes 6
  • Parts 2
❗❗WARNING THIS STORY HAS NSFW CONTENT IN IT IF YOU ARE NOT COMFORTABLE WITH THIS DON'T READ❗❗ A large part of being Soulmates is helping each other out. (Front cover art not mine, and all the characters are not mine either) Killer belongs to: Rahafwabas Nightmare belongs to: Jokublog Dust belongs to: Calvateyla (??) Horror belongs to: Sour-Apple-Studios (??) Cross belongs to: Jael Peñaloza
I have SIX Soulmates!? (Classic Sans x Bad Sanses) (Completed) by Popculturewolf
I have SIX Soulmates!? (Classic Sans x Bad Sanses) (Completed)
Popculturewolf
  • Reads 57,918
  • Votes 1,721
  • Parts 11
Sans had SIX different Soulmate tattoos. Not one, not two, SIX. So what happens when he finds them? Er, well, they find him. And let's just say... They're not the kindest people. So what happens when they find their soulmate? They all love him, but will he love them back? And what about the Star Sanses? Will they try and capture Classic to kill the Bad Sanses? Also, cover is not mine! Credit to the original artist! #7 in Classic as of 8/18/2020 #1 in Cross Sans as of 8/19/2020
꧁𝔽  𝕃 𝕆 𝕎 𝔼 ℝ 𝕊 ?꧂ by NightmaretheBoss01
꧁𝔽 𝕃 𝕆 𝕎 𝔼 ℝ 𝕊 ?꧂
NightmaretheBoss01
  • Reads 587
  • Votes 49
  • Parts 6
Nightmare has a crush. He only told his crew. Expect for one of them, which is the one he likes . . . What will happen when the person Nightmare loves so dearly falls for another . . ? ⚠️W A R N I N G⚠️ Cursing is used in this book. If you don't like and/or do not wish to hear/read it, please leave now. (This is the Bad Guys we're talking about-) !!Cover photo is not mine!! !!This is my book. It was uploaded on a different account, though that account is mine!!
₳ ₩ØⱤⱠĐ ₳₱₳Ɽ₮ - ░L░a░z░y░G░l░i░t░c░h░ by Celestial_Keeper
₳ ₩ØⱤⱠĐ ₳₱₳Ɽ₮ - ░L░a░z░y░G░l░i░t░c░h░
Celestial_Keeper
  • Reads 14,662
  • Votes 549
  • Parts 12
This story is an Error X Classic (Aka LazyGlitch) ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ Error was always alone. Caught in his hatred for others and the desire to remain independent. That simply made him as he was. There was never a time he'd have changed a thing. Not until the day he'd met Classic, the original Sans. Only one problem with this newfound desire. Classic was a taboo.
Mind Control by Gomarnic
Mind Control
Gomarnic
  • Reads 49,631
  • Votes 1,107
  • Parts 16
The Bad Sanses had had enough of doing what is good and stopped destroying the multiverse so that they can finally be able to be themselves. But when they meet Classic during one of their attacks, Nightmare decided to control his mind and let him join him. Will, any of the good Sanses get their good friend Classic back? Or will the Bad Sanses finally have what it's theirs?
Confession Time by slpyfna
Confession Time
slpyfna
  • Reads 10,408
  • Votes 487
  • Parts 7
Dream comes up with a new game to get Nightmare to open up to him. Will he succeed?
Not so evil after all  by Azthesecond
Not so evil after all
Azthesecond
  • Reads 2,995
  • Votes 79
  • Parts 14
The bad sanses are dead, everything is finally at peace.....or so they thought. When dream and his friends decides to have a look around nightmares castle and stumbles upon a book that has information about the balance they realize what a grave mistake they've made. Ink,dream, and blue combine their powers along with a few other aus to reincarnate the bad sanses. They've made it their mission to teach them how to be good while feeding of of negativity to survive. I don't want any comments say I WouLd KilL ThE StAr SanSeS becAUse TheY KillED thE BaD SAnseS. You do realize that in order to keep the peace between positivity and negativity both brothers have do their job. You can't get mad at someone for doing their job that's like saying "My Amazon package didn't arrive today! They must not be doing their job properly!" Listen, I get it undertale fanfic usually makes one of the star sanses hated but if you think about it they're just trying to be good people. Ships: Kustard Errorink Horrordust Killermare Cream