UNDERSTUFFS
17 stories
AU sans X Reader Lemon (Requests Closed) by i_Am_Traumatized
i_Am_Traumatized
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WARNING: IT CONTAINS A LOT OF JUICY LEMONS!!! AND A LOT OF UNDERTALE SIN!! I MEAN SAN S YEAH. WELP, STAY AWAY INNOCENT CHILDREN, CAUSE YOU MIGHT HURT UR EYES WITH THE STRING JUICES!!
Cold Lust (Yandere Underswap! Sans x Female reader) by ghost_keef
ghost_keef
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Sans' life always seemed dull until a human (you) come into the Underground, and Sans is determined to make you his.
Ink sans x reader lemon rewrite by kakonachun5678
kakonachun5678
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I'm rewriting this
Error!Sans AU X Reader (LEMON) by Undertale_Trash101
Undertale_Trash101
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So, like I promised. Here you all go. I honestly don't see how Error can have a dick though... Hmm...
AU sans x reader lemons (DISCONTINUED) by kakonachun5678
kakonachun5678
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I'll give you guys time to request and if I approve it I'll do oc's
Sans X Reader (ULTIMATE LEMON!!!!!!) by OnyxFromHomeworld
OnyxFromHomeworld
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Sans x reader. CONTAINS ULTIMATE LEMON!!!!
Lust sans x reader (lemon)  by anme_luving_gurl
anme_luving_gurl
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This is my first ever book or Lemon so please don't judge
changes(sequel to friend or foe) by litlleparker
litlleparker
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its been 2 years
Sometimes things work out (sequel to an amazing emotion) (Sansby) (on Hold)  by Flustering5
Flustering5
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Everyone hates Sans for what he did. He is one of the bullies' favourite targets. But Grillby can't bring himself to hate him. He has loved him for a while and knew he needs to admit his feelings. He plans to do it. Sans loves Grillby. He would never admit his feelings to Grillby because he thinks Grillby hates him. But one time when he was being mocked it hits him hard. He realises that he needs to confess his feelings, so he plans to do it. Will things work out. Or will Sans' mistakes come back to haunt him.
pure and cold Sanscest by 360transboi
360transboi
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this will be a trip down "fuck me hard" lane and a truly amiozing book that is going to have requests open.