Types of Harassment:

Quid Pro Quo

So for example, if a supervisor demotes an employee because he or she rebuffed the supervisor's sexual advances, that is prohibited supervisory harassment.

And what if the employee instead submitted to the supervisor's demands for sexual favors in exchange for a promotion, and the supervisor then promoted her, and she complained about his behavior? Well, that too is prohibited harassment because the supervisor made sexual favors a condition of her promotion.