"SANS!? HAVE YOU FOUND FRISK YET? YOUR SPAGHETTI IS GETTING COL-"
Papyrus stopped himself as he saw what was clearly not Sans. Or at least, not the Sans he knew. He was, however, wearing the same clothes as Sans, and covered in dust.
Papyrus's smile faltered as he thought about what this could mean.
"H-HELLO SMALL HUMANS." Papyrus trembled. "MAY I ASK WHERE MY BROTHER IS?" Papyrus paused. As if trying to hold back tears. "H-HE WAS WEARING.. A BLUE COAT... W-W-W-WITH..."
Ness cut him off, "Papyrus it's OK, I'm right here. There's no need to be upse-"
"DON'T LIE TO ME, HUMAN!" Papyrus yelled, and then was taken aback by his own aggression. "F-FRISK, YOU WILL TELL ME THE TRUTH, RIGHT? WHERE IS SANS?"
Frisk pointed at Ness, whilst nodding her head.
"A-ALRIGHT THEN... OTHER HUMAN, I WILL BELIEVE YOU. IF YOU TELL ME ONE THING THAT ONLY SANS WOULD KNOW."
Ness pondered this for a while.
"..Remember when you and I first met the rabbit lady and her kids? You tried one of her cinnamon bunnies, and you ended up having a sneezing fit just ten minutes later. We kept going back there for a few days, and you thought you had a sugar allergy after a week of the same thing happening. But it turned out it was just the dust bunnies."
Papyrus's face lit up instantly. He picked up the small boy, and hugged him tightly.
"SANS! I WAS SO WORRIED! WHAT HAPPENED TO YOU? WHY ARE YOU AN ADORABLE LOOKING HUMAN? I HAVE SO MANY QUESTIONS!"
"I'll try to answer all your questions, Pap. I just need a little rest."
"GREAT! YOU AND FRISK COULD HANG OUT WHILE I MAKE A FRESH BATCH OF SPAGHETTI! " Papyrus trumpeted, as he marched toward the kitchen.
Ness turned to face Frisk. "Welp, I'm sure glad that worked out."
"Poor Papy, he was this close to bawling." Frisk replied.
"There's one more thing I want to ask you before I take a nap." Ness suggested.
"What's that?" Frisk asked.
The boy's face turned a little red.
"...Do I look cute to you?"