Zack is your enemy, one day your class went on a trip on a beach

You're walking in a swimsuit around and suddenly you saw your ememy with a group of few guys who aren't from your school

One of them whistled at you

"Nice ass!" another yells

but before you can walk by, you hear someone hit the ground

"Don't talk to her that way" It's Zack and he just pushed his friend

he approaches you and you thought hes gonna do something but he just puts his jacket over you to cover you up