Where do u think u're goin'? Yandere! Undertale Characters x AnyGender! Reader

Chapter 42: A cold-blooded murder

 That night when Sans went to bed, Valentine wrote him. After he finished talking with in a cold way, he fell asleep.

 At 4:34 am Sans woke up. He had a nightmare. It was about an innocent dog that appeared in front of him while he was walking to your house. The dog suddenly said - Really, Sans?...- and Sans answered him - What?...- and after that...the dog's face became darker and he had a creepy smile on his face, then he said - I think you are too lazy to have a serious relationship...- and then Sans replied - Oh, really?...watch this!. - and then Sans turned back to reach your home. When he arrived, you house was at the top of a mountain. Sans started to go up walking...but in a few seconds he felt tired. The next minute, Sans was laying on the ground. Then the dog, with the same dark smile, appeared and said - I told you...- while bitting Sans' bones. At that moment Sans woke up and said to himself "Lazy?...I gonna show everyone that my love for Y/N is stronger than anything in this world!...but first I wanna sleep..." and then he fell asleep, again.

 The next day, Sans decided to organize a hangout in his house. He asked Toriel, Undyne and Papyrus to leave him alone with you and the girls. They accepted. Once he called everyone, you arranged to meet in his house at 6 pm and have dinner there. You and Emily weren't so sure about it, so you decided to stay together for the whole hangout, after all, you loved each other...

 Finally the clock striked 5:53 pm, so you and Emily got going to Sans' house. As soon as you knocked on the door, Valentine opened up. You were surprised because she was always late, for everything. However, you came in and then Sans told you to take a seat on his sofa.

 During the evening you played videogames and reacted to awkward videos on the internet until the clock striked 8 pm and you all felt hungry. Sans phoned the furthest pizzeria so they couldn't reach his home in time and the order was free. When he finished doing that, everyone started to set up the table. Suddenly, Sans said - Hey Emily, there is something in the basement that I want to show you...- and she asked - What is it?...- and Sans responded - An ultra hard and tough dodgeball ball...- and then Emily reacted - Me...you...the basement...NOW!. - and after that she and Sans rushed to the basement. You didn't notice their disappearance because you were putting on the plates with Valentine.

 Sans and Emily entered the basement and as they did, Sans turned off the lights. Emily said - What the...?...- and then Sans shouted - Dodge this bitch!. - and stabbed her to death in the back. After that Sans turned the lights back on and saw Emily's body... She hardly said - Hehehe...you jerk...Y/N will never be you- and then Sans stabbed her one last time in the gut. Sans decided to make it look like Emily electrocuted so he grabbed a match and started to burn Emily's face and some of her clothes too. It was going perfect.

 You and Valentine noticed that Emily and Sans were taking long in the basement so Valentine decided to go and take a look. Sans was now laughing at Emily's death. He decided to go for something to mop the blood but as he opened the door Valentine saw him. Sans had Emily's blood on his face and as Valentine saw the corpse she shouted but before that could happen, Sans covered her mouth. - What have you done?!...- Valentine asked - I killed her. - Sans replied. Valentine demanded - Why?!. - and Sans responded - I killed her because...- and Valentine interrupted him - Are you nuts?!. You killed her!!! now Y/N will be destroyed!!! you are crazy!!!. - and at that moment Sans stopped and thought for a second. "Am I crazy?...what have I done?!...I killed a person?...what is wrong with me?...what is..." but before he could end his thought he started to cry. Sans sobbed while hugging Valentine - I'm so sorry...I'm sorry...- and Valentine stood in silence. - Could u please forgive me?...please?...- and Valentine then stood in silence.

 Author's note: Finally! I finished doing it! I hope you liked this chapter and if you did please vote... Bye :v