I slept with my highschool drama teacher
Why would you sleep with your highschool drama teacher?
Because he promised me to give high grades.
You should never sleep with any of your teachers, it could get them in a lot of trouble and hurt both or your reputations.  Instead of sleeping with your teacher's to get good grades, you should study and earn your grades for working hard and applying yourself.
But I like fucking teachers, I prefer them over kids my age.
It is still not appropriate, besides the age difference there is the difference in power.  It is a terrible choice for you and illegal for them.