Personally I would want to be an executioner at a female only prison, and only the cutest girls would be sent to die.
Or some type of deathmatch scenario where girls are kidnapped, punped full of aggression enhancing drugs, and outfit them with explsoive collars. I'd demonstrate the explosive collars on one girl chosen at random, as an example of what would happen if they were to disobey me, and then tell them that they would be set free if they managed to kill their opponents.