*Kiara*

"Can you two f*cking deal with yourselves?! We're talking here." I shouted at them. They're still floating in the air.

"Who do you think the f*ck are you?" UF Sans yelled back.

"Your sister from another universe!"I snapped. "Go to a f*cking closet or somewhere and talk about your f*cking problems! Is that too much to ask?"

They both grew quiet and UF Sans folded his arms. I sighed.

"Look, even if I'm not you're real sister I'm still worried about you two."

"Why are you even worried?" UF Paps asked me grumpily.

"Because we're all the same." UF me interfered. She held to my shoulder. I looked at her. "We're worried about our brothers."

"Wait, so you have the same personalities in all alternate universes?" UF Sans asked.

"Nope, but it's a key trait."

"So, are you gonna go and talk about your problems or what?" I asked them. They looked at each other and nodded.

"Good." UF me put them down. UF Paps and UF Sans walked out with an awkward silence. I turned to my alternate self.

"Go with them, they might not listen to me." I rolled my eyes. She smiled at me and hugged me which I didn't expect.

"Thank you. Thank you for that." I smiled and hugged back.

"Anything for you."

We pulled back and UF Kiara ran up to them. I turned to Sans.

"didn't know you can make an outburst like that." He jokingly said.

"Well I can." I answered him with a big smile.

"we should go to UF Alphys and see what we could help." He suggested. I nodded and followed him outside.

~*****~

*UF Kiara*

Everything's going smoothly. They're not fighting physically nor verbally. They're just talking. I was hidden under some trees kinda like spying on them.

I'm really thankful for what UT Kiara did. I usually stay quiet when they fight and I just longue around while they fight. I'm really glad they get to talk about their problems.

I walked towards them and they noticed.

"um... hey Kiara. i'm... we're sorry for the trouble we make." Sans told me. I smiled at him.

"It's okay, bro. It was worth it."

"I also apologize for the trouble I have caused you and for torturing you."

"Come on! Stop apologizing! We're siblings, we help each other." I hugged them both as I smiled happily. They both smiled and huggdd back. I'm glad we're alright now.

~*****~

*Kiara*

For the next few days, my alternate self and her brothers are getting along well. They even helped us make the machine. After a week the machine was done. Time to go.

"Break a leg!" My counterpart jokingly said. I laughed.

"I will never forget that!" I replied. I lookef over the others. Sans and the other Sans were talking with UF Papyrus and UF Alphys. I'm gonna miss it here even at first they wanted to kill me.

"So... see you on the other side, buddy." She said, qouting Sans. I smiled sadly.

"Yup, see you at the other side." I agreed and hugged her. She's beter than Underswap me.

Me and Sans entered the machine ready. I brought a bag with food like fries and ketchup. I also brought an extra hoodie and sweater. Sans got a suovenir from UF Sans. It's a black jacket that pretty much looks like UF Sans' jacket.

"This is it." UF Alphys said. We waved goodbye as we entered the machine.

"Bye both of you!" UF Kiara called.

"good luck." UF Sans simply said with a smile.

"Good luck, human and my brother's alternate self!" UF Paps called.

"Bye!" I waved to them as the machine made it's noise.

"bye, see you again sometime." Sans said with a smile.

Just before the door close, UF me said something.

"Thank you!"

The machine gave of a bright light and I suddenly felt like I'm lightheaded. I feel like vomiting.

Suddenly, we tumbled down into the snow. The same thing that happened when we were teleported to Underfell.

"So, where are we? Are we home already?" I asked Sans. Sans looks around cautiously.

"it feels different." Sans whispered. I felt like someone's watching us. Sans helped me up and we walked towards the bridge. Someone's following us.

We continued towards the bridge but a forced made us stop.

"hey, don't you know how to greet a new pal? turn around and shake my hand." A voice that resembles Papyrus said. Wait, is this universe what I think it is?

I turned around and shaked his hand cautiously. As soon as my hand touched his, a whoopie cushion sounded. Sans snorted and I giggled. Suddenly, the tension that was there a while ago was lifted. I looked up and saw... Papyrus?

Papyrus? Hoodie? Smoking? Chill?

"what the..." Sans trailed off as surprised as I am.

Papyrus looks down at us questioningly. Wow, I really feel short.

"Sans? Kiara?" He said with a puzzled look. Okay, now I'm pretty sure this is Underswap.

I cleared my throat. "Okay, Undertale Sans meet Underswap Papyrus."

"He's Sans/Papyrus?!" They both exclaimed at the same time while pointing at each other. I sighed.

"Yup."

They looked at each other suspiciously.

"what is happening here?" A voice like Sans but a little loud asked with authority. I looked around and saw Underswap Sans. He looks more cute up close!

"Brother?" US Papyrus asked. US Sans saw Sans and his pupils turned into stars.

"wow! you look just like me! except you're like Papyrus. but you still look like me! where are you from? how did you get here? do you like tacos too?"

Sans stood there sweating nervously. Suddenly, a rustle of bushes was heard. We all turned to the direction of the sound.

"Why is it so noisy here?" Underswap me asked annoyed.