You had known Papyrus for a long time and one day he invited you too hangout with him! You can be Frisk if you want* Eventually once you make it to his house you knock on the door*

Papyrus opens the door* 🍝 Papyrus: "Hello friend! Come in!" You come in and see a sock on the ground with a few sticky notes near it and Sans seems to be watching you* 🍝 Papyrus: "Would you like to try my great spaghetti? "