The House of Undertale AUs

Chapter 15

A/N: Ok so the picture is absolutely horrible. It wasn't the picture that I wanted but for some reason, I couldn't find the picture that I wanted so I used this one instead. Hoped you enjoyed this story so far. 

Chara's POV:

Everyone was trying to look for Sans. The stupid trash bag was nowhere in sight. So was Frisk. I wouldn't have joined the search if Frisk wasn't missing.

"Frisk? Where are you?" I called out. Then, I saw my room that I shared with Asriel and Frisk. On instinct, I opened the door to see Frisk, lying there on her bed. I turned on the lights in excitement.

"Frisk!" There you—" I stopped what I was about to say. Frisk was covered in a whole bunch of scars, cuts, and scratches. I could see that someone already cleaned her up. Maybe Y/N. Where is she anyways?

"I found Frisk!!" I called out to the others. My mom, Toriel, came running.

"Oh, my poor child!" She cried, seeing the state of Frisk. I felt my vision grow red. How dare someone hurt a kind person like Frisk!!

"I found Sans!" Undyne yelled. "And guess what? He has Y/N next to him!" That news perked us up. Toriel staid with Frisk and tend to her while the rest of us went to where Undyne was shouting.

Sans and Y/N were sleeping next to each other on Sans's bed. It was kinda cute. Then, Undyne showed us something. She lifted the blanket on Y/N. We could see bandages wrapped around Y/N's stomach area. There was a bit of stained blood on the bandages. I pieced two and two together and figured out that Frisk and Y/N must've been attacked together. They must've gotten badly hurt and while Y/N tended to Frisk, who wasn't that hurt, Y/N had taken most of the hits. Sans must've found Y/N all bloodied up and tended to her. She must've either fainted or fallen asleep so Sans joined her. He is a sleepy head after all.

Just then, Sans yawned. His eye glowed blue as he saw us staring at him. "Why are you guys here?" he asked desperately.

"Umm, we were looking for you," Asriel said. I rolled my eyes.

"Why is Frisk and Y/N injured?!" I demanded. Sans looked at me. I could see his anger rising, then falling.

"Well, I was about to sleep on the couch," Sans began before Papyrus interrupted.

"OF COURSE YOU DIDN'T GO TO WORK, YOU WENT TO SLEEP INSTEAD," Papyrus said.

"Paps, I was done with work," Sans reply meekly.

"Sans, just continue for crying out loud," I sighed. He glared at me and continued the story (exactly how I told you guys is Sans's POV. And I don't have to write it because I'm lazy. Don't judge).

My vision blurred red. "Where are they?" I asked.

"Chara, you promised not to kill people," Asriel reminded me. I frowned. "And besides, Y/N doesn't let us monsters go to the human world there because we can get hurt or they can hurt us. Only the trustworthy humans can past and see our world. They are the people that actually understand and see what's going on."

By now, I didn't care. They hurt Frisk and her sister. "I'm going to go," I replied. "I'm going to kill those freaks that hurt my sisters."

As I was leaving, I heard Asriel say, "But Y/N isn't her sister. Maybe she accidentally said it that way?"

I walked quickly from our room. At the dinner table, the Underfell clowns were fooling around. Once I was outside, I finally answered Asriel's question. "Y/N will soon be my sister."

Y/N's POV:

My eyes snapped open and I sat up quickly. At first, I had no idea where I was. When my eyes finally got used to the darkness, I saw that I was in Sans's bedroom.

My first question was why I was there in the first place. "It's because you collapsed right when Sans found you," Gaster answered. He could see everything going on when I can't.

I felt where the pain was a moment ago and found out that someone put bandages on me. I realized that it was probably Sans.

"How long was I out?" I thought, rubbing my temple.

"It's 12:00 now, so maybe about 5 hours," Gaster calculated. I winced. I didn't make dinner for them. Hopefully they made it through without destroying the house.

With a gigantic sigh, I slowly got off the bed and limped out of the room. It was dark and silent. I went downstairs and slipped out of the house and into the back where the monsters lived.

Every shop was closed, so even with the street lights, it was kind of lonely. I spaced out for a long time so I didn't notice myself walking all the way to the echo flowers. I laid on the cold grass and closed my eyes, wishing that life was as relaxing like this.

Then, I heard someone coming. I opened one eye and saw a skeleton walking towards me. It was Sans! He didn't really notice me yet on the floor. I started to get up but then, he tripped on me and fell forward. In a split second, I realized that Sans was sleep walking. He could've teleported away to not hurt me but he didn't see it coming. With a surprised yelp, Sans fell right on top of me. I closed my eyes and was really surprised when my lips touched something.

I opened my eyes to see Sans up close to me. And then, I realized that we were kissing. My face felt warm as I stared into Sans's eyes (that kinda sounds wrong a little).

Sans realized that a few seconds later. He quickly got off of me. "Uhh... I'm... uhh... I'm sorry!" he stammered and teleported. Whether it was the echo flowers or something else, his face was bluer than when I first saw him walking this way.

"That was... interesting," Gaster commented. I'd nearly forgotten about him.

"So, how does it feel like to host someone who just got kissed by your older son?" I smirked, putting my hand on my cheeks unconsciously. My hands felt cold against my warm face.

"To tell the truth, it was weird," Gaster said. "I mean, you get kissed by someone's older son and his dad is getting kissed at the same time."

"Wait, seriously?!" I almost shrieked out. Then, I felt Gaster laughing and I felt like an idiot.

"No, of course not," he chuckled. "I was just kidding. I only just saw. And also, I give you my blessing."

"Excuse me?"

"Yes, my blessing. I want you to have babies!!"

"Omg, Gaster. Now's not the time," I moaned, embarrassed.

"Sorry."