Edgy Love (fell Sans x reader)

What comes next?

Sans POV

We've been running in the halls for what felt like ages and at this point I didn't know what the hell Gaster was doing. I couldn't tell if he was toying with me or not. "Gaster where the hell-" he cut me off as I tried to question him.

"Well my dear boy, remember those tanks I had you in during your creation?" He began to say making me grow confused.

"What the- no not in particular. Just- where are we going?!" I said looking down at (Y/n)'s lifeless corpse and back up at Gaster with irritation.

"We are going to those tanks! They were able to sustain your life and Papyrus's just fine. I believe if we place (Y/n)'s body in there with minor modifications to the substance she shall be sustained in there just fine during our studies to bring her back." Gaster explained making me hum in fruitful thought.

"However, we have to hurry. The longer her lifeless body is without some form of life support the worse her condition will be." Gaster explained making me grow confused.

"The hell you mean 'condition'? She's already dead, Gaster." I said growing annoyed with his, what appear to be, false statements of hope.

"Look, she's not dead. Despite the fact, her heart rate has ceased she is still alive. That's merely the aftershock of her body losing its soul. As long as we get her in the tank and get her heart rate going again her body will be fine and we should be able to manage to bring her back." Gaster explained to me with a rather casual tone making me annoyed with how laid back he is acting towards almost killing her.

"How are you so calm about this? And where in the hell are those tanks? We've been running for ages!" I shouted considering the supposed urgency he said (y/n)'s condition was.

"I'm calm because I have a general understanding as to what needs to be done. You yourself need to calm down, otherwise, nothing will get done on your part." Gaster practically lectured me with annoyance in his voice. "Anyway, we are here." He said as he was coming to a stop. I looked around the room and it was all coming back.

There were two large glass tanks in the center of the room containing blue liquid, cords were dangling from the sides of it while monitors were displayed on the front to describe the conditions of whatever specimen would be placed inside, in this case, (Y/n). "Sans, I need you to strip (Y/n) down for me while I prepare the liquid in which she needs to be submerged."

"Wait what?! You want me to strip her down?" I asked him making him turn over to me with an emotionless face.

"Boy, if you think I give a damn about her nudity you're wrong. This is merely for the well being of her health. Now strip her down. I won't ask again." He said sounding both disappointed and annoyed with me and my attitude.

"Ok, fine," I said as I looked around the room for somewhere to lay her down. Fortunately for me, there was a small cot against the wall where I could lay her. I then began removing her clothing getting more and more depressed as I did so. Goddamnit, what have you done to me? I thought to myself as I stared at her closed eyes and calmed face. I couldn't help but recall my life before I met her and how much she has changed me. I mean... I was such an Asshole when we met. I... I had actually... raped her... oh God and the pet shit! How in the hell did she grow to love me after that? I can't believe she was able to forgive me for all of that! I thought to myself as a shook my head angry with myself. God... She's made such an impact on my life to the point where I don't know if I can even live without her in it anymore. As I got done undressing her, I sat her clothes to the side nice and folded for once out of respect for her and caressed her cheek softly with my thumb as another tear streamed down my cheekbone. I was then interrupted from my thoughts, as Gaster yelled at me from across the room.