A loud BANG was heard from Sans’ room.

You’re using their guest room as your own bedroom because you had fell into the underground not to long ago, yet, you get up from your room and walk over to Sans’ room, knocking on the door, before entering in. “Sans..?”

He had his hand over his chest in fear, his left pupil flashed a cyan, then both of his pupils just went back to a white glow as he realized it was just you.

“Oh hey kiddo, don’t worry about me, just had a nightmare. Heh.”