Yandere Undertale Au's x reader oneshots

Yandere!nightmare x Werewolf!reader

Requested by Femme_Nightmare_Sans
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3rd persons POV

Y/n was walking through the woods with her werewolf form as she was trying to find a pray to eat, she spotted a bunny and launched her sharp fangs on the bunny as blood gushed out of its body. After y/n finish eating she transform into her half form where only her ears and tail showed up, y/n was wearing a f/c hoodie, navy blue jeans and s/f/c converse. She has a h/l h/c hair, her left iris are e/c and in the right is s/f/e/c (second favourite eye color), she has sharp razor teeth and sharp nails. She walk deeper only to find the perfect spot where she always took a rest, the tree has a black and yellow side but she always sat at the black side even people was scared of it, little did she know a skeleton has been stalking her when she first came in.

Your POV

I sign and walked at the dark side of the tree and sat down, i closed my eyes and felt the warm breeze, i felt someone watching me as i looked up to see a black gooey skeleton with only one cyan bright eye and a big grin on his face. I jumped out in surprise and the skeleton frowned "no need to be scared" he said softly "who are you!" I demanded to know as he came to the ground "my name is nightmare!sans...and what's your name" i stood straight but kept my guard up "i'm y/n l/n" he chuckled "what a beautiful name for a beautiful girl~" i got goose bumps all over me as i shivered "are you trying to flirt with me!?" I snapped

'disgusting'

I looked down on him "i'm not flirting with you, i hate it" he looked like he was going to gag but then i turn around and leave "Hey! Where you going!?" "Home" i walked back to town and unlocked my house, i live alone but i'm fine with it. I close the door and went straight to my bed and fell asleep.

Nightmare POV

I stalked y/n till' she went home, i climbed on her window and touched her cheek as i feel her soft s/c, i leaned in and kissed her cheek "I'll do anything just to have you my dear y/n~" i smiled softly as i went home and go to bed too and dreamed about me and y/n getting married and having sons

'Oh my y/n you never know how much i want you so badly~ hehee'

~time skip by WAKANDA FOREVER!!!😂😂~

Your POV

I woke up and pulled out a f/c t-shirt with a collar on it, s/f/c sweater, a black jeans, t/f/c converse. I tied my hair into a f/h (favourite hairstyle) I smiled to myself and grab my bag and went off to school which means SEVEN CRAP HOURS OF OUR LIVES and shit. While i was walking i saw Nathaniel on the waiting shed, i gotta admit i develop crush on him. I approached and wave at him, he waved back "good morning y/n how's it going?" We both walked "hmm i'm fine just really feel like hell" he chuckled "oh really?" "Yup" i tried hiding my blush by trying to pose victoriously. We both finally arrived , i then felt someone watching me again, i shaked it off only my hood to fell off and showing my ears, i hid it quickly, Nathaniel looked at me "is there something wrong?" He asked "n-no the-there's not-nothing wrong!!" i stuttered and blush, he shrugged and grab my hand and dragged me inside the classroom. I was blushing madly

'H-he just gr-grab my hand!!'

Nightmare POV

I growled and watch the guy pulled my future wife's hand

'how dare he grab one of my sweetheart's hand, i should be the one only doing that, ONLY!!! Oh you'll regret of being alive here asshole!'

i punched the wall as it breaks, my eye flashes a bright cyan color.

~~time skip by nightmare being to jealous~~

I watched y/n from afar and saw her talking to that motherfucker stealer, but then this happen. HE KISSED HER!! I stood there froze as i teleport behind y/n and knocked her down "w-what the!!" The guy widen his eyes, i smirked maniacally "how dare you " my tentacle shot and grab his arm and bend it making a loud cracking bones, the male scream and beg, my other tentacle grab his other one and does the same. I pulled the guy's soul "fuckin' waste of time" i crushed it with my bare boney hands as it turns to ashes. I smiled in victory and looked at y/n who was trembling in fear and her ears are low and she was shaking

'Senpai is a fast waker isn't she'

I smiled and bend down into her and touch her cheek as i grab her chin and crashed her lips on mine, she was trying to pry me off but then melted into it, i pulled away "i love you y/n and i want you to love me,..and only ME"

Sorry if it was short😅