You woke up with a small yawn. You looked to the left, Chara and Frisk accidentally became one being again. Charisk. You giggled, which woke them up.

"What? Huh?" They asked. They looked left and right, then at you.

"We fused again didn't we?" They asked.

You nodded, giggling.

Sans walked up, probably for his next shift, and when he saw Charisk, he fell back and landed on the wet ground with a thump.

"WHO IN THE WORLD-"

"Charisk. Chara and Frisk's souls merged again," you said. Sans got up, collected his thoughts, sighed, and approached.

"Wonder if a monster-human fusion could happen, eh?" He said. You flushed, imagining the possibilities of you and Sans becoming one being. He chuckled as well as Charisk. You realized they were slightly taller than Frisk or Chara.

"How do you do it?" He asked them. They split up and smiled.

"It's usually a dance. The closer the two individuals are to one another, physically and emotionally, the easier and more stable the fusion is," Chara said. Frisk nodded.

"And for us, our souls represent the same trait, so our fusion looks more like either one of us at a given moment," Frisk added. Sans looked your way and smiled.

"What do you say, (y/n)?" He asked. You blushed and looked down.

"I...I guess?" You said, nerves wracking through you. He chuckled and grabbed your hand. You were forced to follow his movements. He stared into your eyes almost the whole time and you eventually kept up with him, dancing with him.

You both laughed and just when you thought it wouldn't work, you both were encased in a blinding white.

You opened your eyes and looked around. You were a good four feet taller and well aware of the two extra arms. You shot up and stared at Frisk and Chara, who's faces were lit up. You looked at your hands. You could see the bone, but they were all encased in a translucent (f/c) light, the same as your soul. You started freaking out.

"Holy crap we did it!" You said.

"Awesome!" You said, though your voice was slightly deeper that time. You could tell it was Sans.

"What the heck do I do now!" You said. You laughed, Sans again, and one arm raised on your right. The outfit was the black and grey striped shirt you were wearing, a blue hoodie, black sweat pants, and black converse. You saw the arm jerk upwards, spawning a bone in front of you from the ground. You gasped, and looked to Chara, who was sitting on your shoulder.

"Awesome!" She said. You smiled and went back to the bone. You focused and closed your eyes. When they opened, you found a light blue bone in front of you. You were excited and squeaked.

"Oh my god this is actually fun!" You said. Sans laughed.

"Check this out!" You said, with Sans speaking in the form.

You saw a wisp of blue light, then found yourself across the area. Teleportation.

"Oh my god!" You said, squeaking. Chara floated to the ground and Frisk giggled excitedly.

"This is amazing!" They said. You smiled, then found yourself in light again.

Next thing you knew you were looking back into Sans's eyes. He lifted you up and spun you around in a hug, both of you laughing.

"That was amazing!" You said. Sans laughed and kissed your cheek.

"It sure was!" He said.

You talked and then headed off, of through Waterfall you went where Undyne awaited you.

I liked this chapter. Sorry if updates are coming so slow! But first update of the new year! WOOO!!!

Enjoy