Undertale Sanses One-Shots {AU Sanses x Reader}

Nightmare Sans x Skeleton Reader(sad??)

I suck at making sad things-
Feel free to play the song anytime :)

Possible TW(?) - Gore
Ships included/shown;
Dream x Y/N
Errormare(Nightmare x Error)
Horrordust(Dust x Horror)
Outerkiller(Killer x Outer)
Crink(Cross x Ink)

"Y/N..? May....may I talk to you..?" Y/N turned to look at the skeleton, they smiled. "Of course!" Dream smiled, he motioned y/n to follow him as he ran up to the tree, once y/n had caught up Dream took a deep breath. "So- uh..- I was....ugh, god where do I begin..?" He sighed and looked back at y/n. "I was actually wondering if....i-if you wanted to go on a date..with me...?" My eyes widen, "Of course! I'd love to!" Dream smiled and hugged them. They, of course, hugged him back. "Let's go, I'm sure my Brother doesn't mind if I come back a little late!" They giggled as they left.

I sat there, eyes full of tears as I just witnessed my Brother ask my crush out, I wasn't surprised considering Dream was more social with people than me. But it still hurt, I placed a hand on my chest to where my soul was and clutched onto my shirt. Tears falling as quiet sobs formed, what made it worse? Dream knew about my crush on y/n, but he stabs me in the back just like that. Of course, after that day, I never bothered to trust or love anyone again.

Years passed, Dream told me about their relationship and they would usually come by the tree just to talk and snuggle. I always tried to ignore them which seems to work but what I couldn't stop was the feeling of betrayal and tears swelling up every now and then. After another two years I had enough, while Dream was gone to visit y/n I took the chance to give in and finally accept what the voices had been telling me to do.

“Show them you're not weak.”
“Show them the mistakes they've made.”
“Show HIM what he had done.”

And before I knew it, my hand had reached for the golden apples, turning each and every one of them into the same black color that my side have had. As the villagers approached, I turned my head to the side, a black apple in my hand, giving them one last glare form this form. I bit into the apple with my back facing them, I could hear Dream calling out for me but soon all I could hear was loud ringing and my sight slowly crumbling into black.

A painful scream coming from my mouth as I felt pain in my entire body, I fell down onto my knees as I started coughing up black liquid. The coughing fit barely gave me time to breathe, the liquid in my throat basically choking me. When I opened my eyes my right eye was black as I saw something moving from it from my other eye. I clutched onto the ground and whimper in pain as I could feel my bones cracking, I let out a painful gasp as I felt my shirt tear open as four long tentacles shot out not only from my back but also in my bones.

And before I knew it? Everything, had once again, faded into black. And once I opened my eyes, I looked down at my hands as I sat on my knees. I felt no control over my body as this feeling seemed new, all the pain I felt earlier was gone. I could feel all of the negativity of the monsters surrounding me, they feel amazing. "Brother..!" I turned my head to the left as my eye glowed, the monsters stopped in the spot and now seemed hesitant, I grinned.

Standing up, my back still facing them. Once I finally turned to face them, they all gasped, my eyes landed on my brother. He was on the ground, people had knocked him down, the negativity was making him weak. "What's wrong? Not the Nightmare(666 ._.) Y'all once knew?" I said as I chuckled at their hesitant figures. "Attack!" One of them said as they began approaching once again, I looked down before I started cackling.

"You know your negativity is weakening your savior." I said as some of the monsters glanced at Dream, I took this chance to turn my tentacle into a blade and rapidly spun them around, not moving a single inch on my body. It cuts everyone nearby in half. Screams were heard as blood covered the ground, the tree and myself.