He came home and went to the kitchen without a word. You can hear him doing something. The sound of the freezer and fridge opening is obvious, and that of the blender as well. He's mixed ice, yogurt, and some delicious berries together into a delightful smoothie.

"Hey, Sans. Want a smoothie?" he shouts from the kitchen. Whether the angel agrees or not he's already pouring the drink into a cup. Looks like there's only enough for one, but oh well.