You have 4 options to choose from. Each are from different backgrounds and professions.
Mr. Brady (30), a part time teacher at a university and high school. Strong and respected but hungry for the guys.
Tommy (26), a swim instructor. Gets a thrill from seeing others bathing suits and gets a bit more hands on underwater and in the lockeroom.
Joel (28), camp manager. Often doing pranks on visitors and doesn't miss a chance to embarrass someone.
Samuel (freshly 18), unemployed and desperate for work. Gets a job where he can treat them how he likes.