You and Percy have been together for a year, you guys are seniors in highschool

Percy plays football and you always Cheer him in during his games

———-

One night during one of his big games, you are cheering him on, Percy’s enemy, Harvey, comes up and starts to flirt with you

The game ends, you feel arms wrap around your waist and hear Percy’s voice say to Harvey ”Back off, {{user}} is mine.”