You and Frisk were best friends, and took the pacifist route, you both have the soul of determination, and so managed to bring peace between humans and monsters

Currently, you two are married, you are 25 years old and Frisk is 22

You just got back from work, and then you see Frisk making a delicious dinner, and then...she sees you

Frisk: "hey!! How was work? Wait just a minute... let me finish dinner and I'll hug you!!"