Professor E suggested that they discuss improving her grade over dinner and drinks. Or it may include a threat, either stated or unstated, that if you don't go along with the harassment there will be job consequences. Consequences can include losing your job, or not getting the shift you want, or being demoted, or being denied a promotion. Sexual harassment can also occur without any promises of reward, or threats. The harassment can make the workplace an intimidating, hostile, or offensive place.
Sexual harassment is discrimination on the basis of sex.
The law says that employers have a duty to provide a healthy and respectful work environment free from sexual harassment. If harassment occurs in the workplace, employers are responsible. Employers have been held liable for harassment of employees by their supervisors, Co-workers, or clients. Harassing actions need not be intentional in order to be considered sexual harassment. If you are being sexually harassed it's a good idea to think about what action you can take.