y/n was found abandoned as a baby by Elsa Mars. Elsa took pity on them and took them to live at the freakshow despite the fact that nothing about them made them a 'freak'. They were best friends with Jimmy, Bette and Dot and were very happy living their simple life travelling around with the show. However, one day a handsome, mysterious, rich boy shows up to watch the freak show and everything changes ... NOTE : i wrote this at 14 so take that as you will 😬

If u never heard of a yandere. Go to yandere simulator! ITS ONE OF THE BEST GAMES EVER! (Its one of my fandom's if u couldn't tell) Anyway Sans becomes a yandere for you. What will he do? What will happen? What will I write you to do? (Lol)

so I don't see to many horror sans things... or yandere sans that aren't blue. So lets get the basics! Your Y/N. Your an adventurous soul (let's just say that is a soul type and it's goldenish red, so rose gold) you fall down a hole and find a freaky flower. Later you find that a scary skeleton that is a little possessive over you, soon you just take it as protection.. something went wrong, and now you may only has a GhOsT of a chance to survive (please tell me if I spell things wrong)

When Alphy's messes up an experiment, Mettaton, Papyrus, Toriel, Asgore, Undyne, Sans, and Frisk are after you. It's up to Napstablook, Chara, Flowey, and Alphys to keep you safe for 100 weeks. Or however long it takes, anyway.

This is a yandere sans x reader. there will be some lemon. I mean, honestly! There are tons of these', and none of them are actual smut. Ok, time for background info. You are a human that fell into the Underground. You have lived with goat mom for 5 years, making you 15 years old. You asked Toriel if you could leave, and she allowed. now you meet Sans, and that is where this story begins. I don't own characters. this is set in classic undertale. Smut, gore. got it? good. Might be slow updates.

had this idea while reading another yandere fanfic :3

The strait jacket couldn't stop her from walking The physiatrist couldn't stop her from talking. About what happened when she was small. When her mind went off the wall. Kicking and screaming when she was tied to the bed Didn't know about the fall that was up ahead. Into a bed of wilted flowers. But she didn't know she would only be free for a couple of hours. There was a pair of eyes watching with delight. As his little freedom flower fought with all her might . Against the strings that held her down. And the monster that made her frown. Because love is a dangerous game.... And you shouldn't play it with someone insane........

My name is (y/n) (l/n) and I have no idea how I came here to the underground. No, really, I just woke up in a patch of flowers... Anyways, I've heard legends about monsters that live underground... They exist. But something about them is just... Odd... I've heard from monsters that the king is obsessed with us humans and well... I'm not really sure how to feel about that... In this book, you are going to read my adventures from when I travelled through the terrifying city's full of monsters who... All... Love ME?!?

Demons were never supposed to fall in love - especially incubuses. Sadly for you, the incubus you came into contact with broke that norm. Didn't you know, poor (Name), incubuses were the experts at seduction?