The Fallen Lovers (Underfell Sans x Female Fallen Angel Reader)

The True Lab

~~~~(Y/N)'s POV~~~~

You woke up to Papyrus yelling for you to wake up from downstairs. It had been like this for the past 3 months. Getting up, you change out of your used clothes into a new outfit, one of your (f/c) enchanted turtleneck sweaters, a pair of (Grey, tan, or white) shorts with black leggings underneath them, along with your (Specified shoes). You put some water in Flowey's pot, brushed your teeth, brushed your hair, then walked out of the room.

Walking down the stairs quietly, you hear Papyrus yelling at Sans, then you hear a sickening crack that crawls under your skin. You run into the kitchen seeing Sans curled up in a ball, with a noticeably sized crack in his skull, as Papyrus kept kicking Sans in the gut not noticing that you were in the room.

"Papyrus! What the hell are you doing?!" You screamed at the taller skeleton, throwing against a wall in the kitchen with a burst of wind using your wings. You hurried over to Sans, lifting up his tear-stained skull, he was unconscious. You started to teleport unwillingly, but it was a good time to, since it only happened when you were in a lot of physical or emotional pain.

The air around you pulsed with magic, you were teleported to the  true lab. You picked up Sans, which would have been physically impossible for you if you weren't having an adrenaline rush, and put him on one of the empty hospital beds, the amalgamates starting to surround you and Sans, mainly staring at Sans, because they hadn't seen him before.

 You dismissed them with a wave of your hand, and you started using your healing magic to fix the crack in his skull, but you couldn't due to the fact that part of his skull was missing. You whistled, catching the attention of Endogeny, you signed to him what you needed and he immediately got it for you.

Spending about 5 minutes, even though it felt like years, you finally made the piece of obsidian the shape, thickness, color, and the smoothness to match Sans' skull. As you fused the makeshift bone fragment to Sans' skull, Sans was wincing and groaning as if in pain, and when you were done, he was sweating. You placed a cool, damp rag on his forehead, knowing he had a fever, you also gave him some medicine.

~~~~Sans' POV~~~~

(Play video)

My head was pounding with a massive headache, and when I opened my eyes everything was practically pitch black. Memories flooded back to me, remembering my fight with Papyrus, remembering that he cracked my skull open. I go to touch my skull to feel the crack with my left hand, but it was stuck, and when I checked what kept it in place my heart, or to be technical, my soul skipped a beat. It was (Y/N), she was resting her head on the side of the bed while holding my hand. My face felt so hot it seemed like I had a fever.

I used my right hand to feel the crack, yet it was gone. Maybe Papyrus hadn't hit me hard enough, no, he did, I knew he did. I looked back over to (Y/N) and she was lifting her head away from the mattress, instantly looking at me. She looked so happy, I never knew anyone would be that happy to see me.

I liked her since the moment I had first seen her, even though I didn't know it then. I questioned why I had originally liked her, but that was proven as we grew to know each other, she told me about her life on the surface, which fascinated me until the point when told me the reason she fell down.

She came here on purpose, she wanted to feel belonged and wanted, so that's what I did. I made sure she was treated with respect, even by Papyrus. That was what had started the fight, I was trying to make sure he wouldn't mess with her again. I started worrying about what would happen to (Y/N) when we got back, but I knew Papyrus would never hurt her, but he would hurt me.....

~~~~(Y/N)'s POV~~~~

"Sans! I'm so glad you're finally awake!" You hugged him tightly, then pulled back and put your hand on his cheekbone, his cheekbones glowing a darker red than before. "Are you feeling alright? Does your head still hurt? Do you need anything?" You continued asking questions, making sure he was feeling alright.

"I-I'm al-r-right, but wh-what happened to my skull? I swear Papyrus cracked it when he hit me." Sans finally replied, but he stuttered, which was unlike him normally. He reached up and touched the spot where the crack had been.

"I fixed it, but since I didn't have the piece of missing bone, I replaced it with obsidian, but it looks as if nothing had happened, trust me, it looks fine." You say reassuringly, trying to comfort the skele you've had a crush on for the longest time, even though you thought he might like you back. He had treated you differently after that, he seemed nicer, like he cared, and whenever Papyrus said something rude to you, Sans would stand up for you.

"Don't worry, I trust you with more than you know~" "What do-" When you  finally processed his message, you realize you had been staring into Sans' eyesockets, but you couldn't look away because he was staring too. You felt his hand run through your hair, pulling your face closer to his. You felt his teeth collide with your lips, making a feeling explode within you, as if a nuclear bomb had gone off inside you.  

You felt Sans' teeth part, letting his tongue slither out.(Okay, that sounds wrong XD) He licked your bottom lip , knowing what he wanted you opened your mouth a little, slightly afraid of what might happen. His tongue wrapped around yours, but the kiss was passionate, not rough like you had expected. When you both had parted from the kiss, you had been practically oxygen deprived, so you were gasping for air, even though Sans was grinning.

" I trust you to keep a secret, that's what doll~"

(A/N, Cliffhanger! So how did I do? Did I do alright, because this is my first time writing anything like this, and also, how did you like the song? I was listening to it as I wrote this chapter so I thought it would have fit, Author~chan out!)