-Based off a book-

You were at your unis football(soccer) tournament, Percy Jackson aka the captain of the team had invited you, since the two of you had started messing around and going on 'dates' though it was all a secret and no one knew about it

But your best guy friend was also on the team and offered you to wear his team shirt which you did wanting to be a suppurative friend, blind to the fact the boy had a major crush on you

When Percy saw you in the bleachers sitting towards the front in a shirt that didn't have his number on it he ran off the field and stood in front of you

"Take your shirt off"

You could've laughed if I wasn't for how serious he looked

"You're joking?"

But he didn't answer and you took off the shirt (luckily wearing a singlet on underneath)

Percy took it from you and threw it to some girl in the crowd then took his his shirt and before you could even say anything he had already put it on you

"My girl, my shirt"

She said before running back in the field as girls around you shrieked