Definitely. In an academic setting, professors are in a position of authority. A sexual relationship as described in 'gay sex with professor stories' blurs the lines between professional and personal relationships. It can lead to unfair advantages for one party, like if a student is involved, they might get preferential treatment in grades or access to resources, which is not fair to other students. Also, it goes against the moral fabric of an educational environment.
There are indeed ethical issues. In the context of 'gay sex with professor stories', regardless of sexual orientation, the relationship between a professor and someone in their academic sphere is a tricky one. If it's consensual but within the academic environment, it can still create a conflict of interest. For example, it can affect the objectivity of the professor in evaluating the other person's work. And from a broader perspective, it can damage the reputation of the academic institution as it goes against the expected standards of propriety.