Sans' POV
I was just still, standing there.

I had to do something.

I stormed off into the direction of the castle.

"Sans, wait! What are you doing?!?" Papyrus shouted.

"Dealing with Toriel!"

Before Papyrus said anything else I got into Waterfall as quickly as possible.

Then, once I did, I took a deep breath.

A bright, blue flame appeared in my left eye.

I snapped my fingers as I teleported to the castle.

When I was there, I let the flame die down before I saw Toriel.

"Queen Toriel.." I said as I walked toward her.

"Oh, hello, Sans...I um...didn't see you coming...heh.."

"That's because I'm as quiet as a ninja..."

Toriel chuckled at that remark.

"Anyway, did you need something....?"

I nodded.

"Yes....Toriel...you see...a while back..me and Papy found a human..."

She gasped.

"A-a human???"

I nodded.

"Yes....but Toriel-"

"Then bring them to me...I will take their soul and we will be free!"

"But Toriel..."

"What is it, Sans...?"

I closed my eyes.

"Sans...?"

I opened them up....but now they were pitch black.

"Sans?!?"

"D o n ' t  e v e n  t h i n k  a b o u t  t o u c h i n g  t h e m."

Toriel just went quiet.

"B e c a u s e  i f  y o u  t o u c h  t h e m...y o u ' r e  g o i n g  t o  b e  s o r r y..."

Toriel just looked at me in fear as my pupils came back.

"Glad we could have this chat..." I said, before running out.

Once I was out, I teleported back to Waterfall.

And then ran home.