The soup smelled disgusting.

It probably was, judging by how Sans wasn't the one cooking it. Instead, the skeleton found himself sitting on the couch, trying desperately to control his body from showing the light blush or from his bones making a rattle.

Sick. That's what Sans was, having woken up that morning with his body in a whirl of magical deformities. Skeletal monsters such as himself usually didn't get sick, but when they did, oh boy did they get sick. It wasn't just a minor cough, or just a slight fever, it was full on bones rattling to no end and magic acting crazy.

There was only one time Sans could recall himself being sick, and it was actually the day after he had escaped from the lab. Due to Sans's large magic sum in his soul, his sick days were less frequent but more harsh than Papyrus's, as he had more of an immune but still caught the worst ones. It had been so long since he last got sick that Sans barely even remembered what it felt like for himself to be sick. If anything, he could have caught it from SeedEater deciding to eat that person on top of him, as he got blood in every single nook and cranny of his boney body.

Papyrus just had a few coughs and a little bit of shaking, his sicknesses were due to him overworking himself. With Sans, he wasn't really sure, as he had only gotten sick once before previously. It could be from the blood and dust, as he had gotten blood all over him the day before each sickness. And during the resets, it would explain why he didn't get sick, since Flowey and Frisk would go back in time after they died. His body wouldn't remember it and wouldn't have a reaction to it.

Was he allergic to blood? That could be a possibility. It could also be his magic reacting to the murder, as he was naturally bound to justice and it could have sparked up after each encounter.

That's what being sick was to Sans. His bones would rattle together from his magic acting up, face shading a dark blue with the power seeping from his soul. His temperature would change wildly, one moment making his bones as cold as ice and the next making them so hot he could cook eggs on them and serve them. The magic was the worst, as it would do random things that he would have barely any control over. Sometimes he would randomly teleport only a foot away, but always off the couch so he would thud down onto the floor. Other times it would pick up random objects and just float them around. Random, painful headaches would burst in his skull, feeling like the sides of his head were being pierced with two daggers, always at the same location. It would happen on his back additionally, his body was just a mess. His stats would change too, increasing his attack and defense randomly.

Right now, his attack was at 27.

Naturally, Sans would love to tell the people he lived with that he was sick. He would. Being sick was a great excuse to not do things, as he often faked being sick just to get out of some work in the underground days. However, he lived with serial killers, most of them not understanding skeletal monsters or how they could get sick. Sans even suspected that they didn't know what being sick meant. Toby, only one time, got a small cough and Laughing Jack thought he was dying. And on top of that, if they found out that he was sick they would all try to help too much and it would be a mess.

There was only one person of which he would actually tell he was sick, since he was basically the most sane and knew how to deal with it. Masky, also known as Tim from the hospital, who went undercover to create a distraction to help Sans escape. Sans had only learned about it later from Slender and Tim himself, which explained why no one had rushed into the room when his old friends had started screaming. There was no one left to help.

Unfortunately, Sans was too sick to make food today, and they had just managed to get a new stove. So that meant they were probably going to have to buy another one. Again.

Did becoming a CreepyPasta do something to your cooking skills? All of them were absolutely terrible cooks, except for Slender. But Slender was over a thousand years old or something, Sans couldn't remember exactly what he was told, but Slender was old enough to be there when they invented some recipes. Of course he would know how to cook, he knew how to do practically everything. Speaking of which, oddly Slender had left that morning, saying something about having to deal with something. His brothers left with him.

But it wasn't his business, so Sans didn't care.

He had more pressing matters at hand.

"Okay, I may have accidentally... um, melted the bowl I was cooking the soup inside of," Tim had said, sticking his face in through the doorway. "So uh, yeah. It might take a little longer."

"How exactly did you mess up soup?" Sans asked in disbelief.

Tim looked to the side, embarrassed. "I put the soup in a bowl... then put the bowl onto the stovetop... and the fire melted though the bottom since the bowl was plastic..."

"Seriously?"

"It's been awhile, usually you or Slender makes dinner!"

Taking a deep breath, Sans tried to calm down his magic and body, feeling his bones ache from pain. It was inside of specific spots where his magic concentrated the most. His skull, certain parts on his back, on his tailbone, in the tips of his fingers. Mostly where he would usually use magic. His left eye socket was acting up too, as it was a main focus for most of his magic.

"Maybe I can just come in there and-"

Sans was cut short when he had tried to stand up, only for his legs to fail under him and force him back into the couch. It was hard for him to get clear control over his environment and body. Everything just felt distant, as if he wasn't inside of his body somewhat.

Being sick sucks.

"I'm sorry I can't cook, but I could ask Hoodie to go get you some McDonalds or something," Tim offered, the white mask on his face concealing his expressions underneath.

"N-Nah, don't feel bad," Sans said, voice shaking slightly.

"SANS!" Flowey yelled from somewhere in the house. "THE TALL GAY CLOWN IS TRYING TO EAT ME AGAIN!"

"Deal with it y-yourself!" Sans yelled back.

Due to his magic being wonky, everything else about him that was based in magic was also wonky. Which included literally everything about him. His bones were all connected by magic, so the bones were shaking, His voice was made out of magic, so it was dipping deeper in tone and repeating randomly.

"Uh, Sans," Ben said, sticking his head out of the T.V, "Laughing Jack just- Holy crap dude you look like Jeff just died."

"I heard that!" Jeff's voice yelled from somewhere else in the mansion.

"Sans just helped me train and he's a little tired," Tim told Ben the excuse that Sans had come up with, "It's nothing."

"Uh... you're dripping there, Sans."

Dripping?

That's when Sans felt it. The tears. Something wet and cold sliding down from his left eye socket, where his magic tended to focus on. It felt too dense to be tears, and feeling it slide down sent a shiver down his spine. Touching it, Sans drew back his hand to look at the material on his finger tips, feeling the coldness from the liquid seep into his bones and creating a chilling sense of foreshadowing a bad future.

Black goo.

The void.

The void itself was leaking from his eye socket.

"Sh*t!"

He threw himself up and forced himself to stagger down the hall, almost tripping over his own feet as he made it into the nearest bathroom. Luckily, it was empty when he managed to curl over the sink, letting the void drip from his eye sockets into the drain. Tim had no problem keeping up with the short skeleton the entire time, placing a hand on the back of Sans's back. Ben took a little while longer, as he had to climb out of the T.V, but Sans could hear him entering the bathroom.

"Sans, are you okay? Well, obviously no, but does this happen when you're sick?"

"Sans is sick?" Ben asked.

"I heard Sans yell, is everything okay?" Hoodie's voice was approaching rapidly.

The void was reacting to the massive power spike, did it do that last time? No, Sans didn't think it did. Did it? No, no, he would remember something like that. He wasn't as powerful before, he was still just a child back then. But now, with this massive amount of magic, and his ability to use the void itself, it was reacting and entering the real world through his body. It was just a leak from the void, from the crack in space and time Sans used to carry himself around. With this much power being expelled and acting up at the same time, no wonder it was reacting, Sans's powers were a part of the void.

"It's fine, it's just the void," Sans managed to muster up a loud enough voice for the others, using one hand to scoop the liquid from his eye socket into the sink.

"Slender mentioned it once, it's where his powers come from" Masky said.

"He did, yeah," Hoodie said.

"The void? Guys, what's going on?" Ben asked.

"I... I guess it's about time I told you guys a little bit about myself," Sans muttered.

《》《》《》

Yeah, Sans gets sick but instead of it being a filler chapter it actually leads somewhere! I know, I'm just the best. Sorry for no uploads yesterday, I was busy with some stuff. I might post a picture of one of the children revealed if I can draw a new picture or I might reveal the third child I have drawn, it depends on what I've gotten done. We'll see!

And hey, if you're waiting for the next update and want something Undertale to read, make sure to check out my other books if you haven't already! I have a bunch of stuff on there, such as a Yandere Papyrus x Sans story, Sansgore soulmates, a LOT of Sanscest, Yandere Frisk x Sans (don't ask why I have so many Yandere), a Sanster story, and a somewhat Soriel AlterTale AU story. But I don't just have ship stories, I have a oneshot walking dead x Undertale story, an undertale genocide story where the characters are ghosts and watch what happens, Sans teaching the skeletal system to the reader, and I even have a oneshot story where Sans has a murderous voice in his head of his past life (which I think you might like if you like reading about serial killers) which I plan to expand on in a comic form one day. So if you haven't already, you should check out some more of my stories!