Select All
  • Bottom Nightmare oneshots
    6.8K 121 5

    Just a bunch of bottom Nightmare oneshots.

    Mature
  • Puns ( Sans x reader )
    497K 16.4K 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 he...

    Completed  
  • Soulbound || Sans x Reader
    11.3K 468 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...

    Completed  
  • Helping A Friend Out
    338 6 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 (??) H...

    Completed   Mature
  • I have SIX Soulmates!? (Classic Sans x Bad Sanses) (Completed)
    56.3K 1.6K 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...

    Completed  
  • ꧁𝔽 𝕃 𝕆 𝕎 𝔼 ℝ 𝕊 ?꧂
    557 43 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 B...

    Completed   Mature
  • ₳ ₩ØⱤⱠĐ ₳₱₳Ɽ₮ - ░L░a░z░y░G░l░i░t░c░h░
    13.8K 538 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 San...

    Mature
  • Mind Control
    48.5K 1K 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 bac...

    Completed  
  • Confession Time
    10.3K 487 7

    Dream comes up with a new game to get Nightmare to open up to him. Will he succeed?

  • Not so evil after all
    2.7K 76 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...

    Completed   Mature
  • Sanscest Request (Lemon/Fluff)
    3.8K 47 5

    I've had this idea multiple times so I've decided to go for it. If you want to Request something, go for it :D

    Mature
  • ᴄᴀɴ I ʜᴀᴠᴇ ʏᴏᴜ ʙᴀᴄᴋ?
    701 36 3

    Dʀᴇᴀᴍ ᴀɴᴅ Nɪɢʜᴛᴍᴀʀᴇ ᴅᴏɴ'ᴛ ɢᴇᴛ ᴀʟᴏɴɢ ᴡɪᴛʜ ᴇᴀᴄʜ ᴏᴛʜᴇʀ ᴀᴛ ᴀʟʟ, ʜᴏᴡᴇᴠᴇʀ Dʀᴇᴀᴍ ᴄᴀɴ'ᴛ ᴀᴄᴄᴇᴘᴛ ᴛʜᴀᴛ ʜɪs ᴛʀᴜᴇ ʙʀᴏᴛʜᴇʀ Is ᴅᴇᴀᴅ, ʜᴏᴡᴇᴠᴇʀ ʀᴇʟɪᴠᴇᴅ ᴏɴʟʏ ᴛᴏ ʙᴇ ғᴜʟʟʏ ᴄᴏʀʀᴜᴘᴛᴇᴅ ᴀɴᴅ ғᴜʟʟ ᴏғ ʜᴀᴛʀᴇᴅ ғᴏʀ ᴅʀᴇᴀᴍ ━Dʀᴇᴀᴍ ᴡɪsʜᴇs ʜᴇ ᴄᴏᴜʟᴅ ᴀᴛ ʟᴇᴀsᴛ ɢᴇᴛ ᴀʟᴏɴɢ ᴡɪᴛʜ ᴇᴀᴄʜ ᴏᴛʜᴇʀ ᴀɴᴅ ʜɪs ғʀɪᴇɴᴅs ᴀʀᴇ ᴡɪʟʟɪɴɢ ᴛᴏ ʜᴇʟᴘ ʜɪᴍ Hᴏᴡᴇᴠᴇʀ, ᴀᴛ sᴏᴍᴇ ᴘᴏɪɴᴛ Sᴄɪ ᴄᴏᴍᴇ...

    Completed  
  • Sometimes kindness is enough
    53.4K 2.2K 36

    Sans was quite happy with his life : he was living on the surface, he didn't go through genocide routes, had a caring brother, good friends, no resets. Yes, he would have never changed his life for anything in the world. Then how did this happen? Kustard in the flowerfell univers...

    Completed   Mature
  • ~Un Amor Inesperado~ (Nightssic UwU🖤💙 ×Finalizado×)
    7K 428 19

    Bueno este ship es mi favorito,pido perdón si la historia no es buena ya que es mi primera ves escribiendo una*sorry la ortografía*bueno como dije este ship lo amo y intentaré poner toda mi imaginación eh empeño,tratara sobre que nightmare y classic se llevarán una sorpresa a descubrir que su verdadero amor no era qui...

    Completed  
  • Crazily In Love! (AU Sanses X Classic Sans) Under Editing
    193K 3.9K 36

    Ink and the other sanses were just having their meeting when suddenly they were pulled in to a portal. When they woke up all of them were all tied up. They tried to use their powers but , it seems the one that captured them put magical hand-cuffes to block their magic. They looked around and saw a tall figure standing...

  • Read It In a Book - Dream/Passive Nightmare
    8.1K 120 4

    Nightmare reads a book and gets some ideas. Dream is interested. Lemon/Sin/NSFW/18+ whatever this site wants to call it.

    Completed   Mature
  • Who Says You're the One in Control?
    117K 3.8K 42

    Papyrus is dead. As are over 100 of the monsters in the Underground. Now it was just Chara against Sans in the Last Corridor. Already prepared to die here, Sans fights more out of responsibility than anything else. Simply waiting to die, and that would be the end. At least until next round, right? Unfortunately, Chara...

    Completed  
  • A 'Friendly' Game - Dreamtale Twins X Classic
    1.3K 50 1

    The sleepover was supposed to be a bonding moment for both groups. Classic wasn't involved in the slightest. Yet before he knew what was happening, the game became rigged. After all, what better way for peace than getting two opposites attached to the same person? (A One Shot following a game where the Aus know Classi...

    Completed   Mature
  • Where Monsters Lie (Undertale / SCP Crossover) - Darkhumour!
    20.7K 750 16

    (Cover was drawn by me!) The rain had felt so surreal to Classic as he laid among the field. Thick grey clouds rolled past as thunder rumbled in the horizon. Trees swayed as the breeze kicked up the loose leaves and carried them away. Everything felt so unreal as he looked to the surface world. He had finally made it...

    Completed   Mature
  • Boundless Love (Classic Sans X Bad Sanses)
    46.3K 1.4K 22

    Everyone had a destined partner. Sans had watched everyone around him find love. Everyone but himself. After years of waiting, he wanted to give up. He truly believed he wasn't allowed to find love. He had accepted his fate. He was alone. When war broke out along the multiverse, Sans is summoned by Ink to aid them. He...

    Completed   Mature
  • Forced Love Swadmare
    21.3K 439 34

    This is swadmare and my very first book!! Hope you enjoy it! Also I suck at writing so dont mind, i also didn't know what to name it so thats its name -_- and also this is a side AU of mine so like- im also gonna make an angst book about nm in my main-ish AU. They also have hair.

    Mature
  • Bad Apple (Nightmare AU)
    1.9K 95 12

    Disclaimer : Blood, Gore and subject of abuse What would happend if Nightmare never ate the apple ? What would it mean for the guardians and the multiverse ? Read to find out ! (I'm Frensh, sorry for the mistakes, I appreaciate any advice or correction to help me get better) The characters don't belong to me, but the...

    Completed   Mature
  • To live again
    4.6K 320 22

    The Star sanses won and the multiverse is now at peace. But what happened to the terrifying king of negativity? Well let's say he's not a terrifying king of negativity anymore. He's now rather a very shy, confused and traumatized skeleton. My writing isn't great, so just be aware that this is probably trash. Also eng...

  • Reaching For the Final Exit (Suicidal Nightmare) FINISHED
    16.4K 909 18

    Nightmare had been suffering with deep depression for his entire life. And when I say ENTIRE, I mean entire life. Though, it'd been getting worse with each passing day till suddenly the overwhelming, hurting, uncontrollable feeling of wanting to disappear just stopped bothering him. The feeling became numb. Then empt...

    Completed   Mature
  • Core the Apple
    27.8K 1.7K 14

    Nightmare has grown weary of the constant strife between himself and his brother. Every time he manages to fuel the ever-persistent need for negativity in his system, Dream and his friends immediately sap it out of him. So, Nightmare has decided he was done. If they believed the multiverse was better without negativit...

    Completed   Mature
  • Bitter Taste
    85.6K 3.3K 38

    The bad sanses and the stars were fighting for many years.Now..it's the time to stop these useless battles and make a treaty for the two team. Both of the team wanted this.Nightmare,on the other hand doesn't approve. But one day,Dream found an antitode to turn Nightmare back to normal and live pe...

    Completed  
  • Negative Love (A Marenight Story)
    114K 5.3K 52

    Night, Prince of Dreamtale, is NOT the same thing as Nightmare. Not one bit. The King of Negativity found a way to separate himself from his host, Night. Taking the name Nightmare, he was now his own person, leader of the Nightmare Gang. With one catch, however. If Night were to die, Nightmare would also cease to exi...

    Completed  
  • Night Terrors
    5.8K 318 35

    Dream almost did it. He swore he'd never hurt his brother, but in that moment, he shot the arrow to kill. And the flash of light and scream of pain convinced him he did. He almost did.

    Completed   Mature
  • Free Me From My Chains (ClassMare)
    13.7K 555 17

    Nightmare's kingdom had always been at war with Dream's. His kingdom was engulfed in terror, filled to the brim with criminals. Even so, Nightmare never saw himself housing a guest from the outside. When Classic stumbles into his kingdom, he finds himself in predicament's he never would have seen. Can he come to love...

    Completed   Mature
  • The sweet lilac behind the cold cyan
    9.3K 467 12

    What if the corruption that invaded Nightmare's mind after eating the apples disappeared? When he woke up after a long sleep Nightmare found himself in a place he didn't know. He couldn't sense his brother or mother anymore and was covered in some weird goo. The last thing he remembers was the fight he had with the vi...

    Completed