Sans was just chilli'n on the couch as usual with his red bottle of ketchup you gave him for Christmas because, Why not? It's basically the only thing he wants.

"Sup kid, you gotta bone to pick?"

He chuckled. When he laughed he sounded like a cheeky fellow...except Sans and his brother were skeletons so more like hollow fellows 😎💀

(Get it? Because they're skeletons and like- okay nevermind you get the point)