Frisk, at first, regretted sharing her dream. Seeing Sans' tears, she was sure she had ruined their perfect morning. The surface was a hard thing to think about for the monsters. As much as everyone was nice and friendly, they were still prisoners. Their population was squished together under the mountain, and no one should lie about times being difficult. Things had gotten easier in the many, many years they had to adjust, but still. They all deserved to see the sunshine.

But then she saw his smile. His real smile. The sight of it made her want to tear up as well. He was always faking his smiles, despite his face being constantly frozen into a big grin. She could see it in his eyes - his pain, his anger. Right now, all she saw was joy and warmth. She could even see the faint glow of his soul, though she kept from staring to avoid being rude. Still, he was happy. Papyrus was happy. She was happy.

Finishing her food, Frisk stood to gather Sans' plate and was pleasantly surprised when he took his plate to the sink himself. It must have been a good morning if the lazy skeleton was picking up after himself! Smiling to herself, she cleared the rest of the table and plopped everything in the sink. "Don't worry about the dishes, Paps, I got them!" 

As she got to work cleaning up, Frisk softly hummed. It was a tune she had often heard Toriel hum, so often that it was burned into her memory. But it was a nice song, even if she never heard the words. 

It didn't take her long to finish. Once the last dish was clean and put away, she dried her hands and turned around. At that point, she wasn't expecting either of her favorite skeletons to be in the kitchen. Papyrus had training with Undyne, and she was sure Sans would have wandered off to find a comfortable place to take a nap.