I've been having fantasies about my coworkers. I've been sexually involved with a coworker but that ended quickly and she quit work. I'm quitting my current job but I have had fantasies about two of my bosses and two of my coworkers. I have also pictured my coworkers naked (although I do tend to picture everyone I see naked) and I've had sexual thoughts about my coworkers, like whether they shave and who they have been with or the type of people they have been with. Sometimes I have dirty thoughts about customers. I know I would never act on any of these thoughts and I do remind myself that I shouldn't be thinking these thoughts. They are simply fantasies and nothing more.

Is this normal?