In some very limited and specialized fields that are for adults only and with strict regulations, there might be some exploration of certain sexual themes in a more 'artistic' or 'psychological' way, but even then, it is still controversial. Generally speaking, in the broad sense of literature that is accessible to the general public, such stories are not acceptable.
No. Such stories are completely inappropriate and unethical. Teachers are in a position of authority and trust, and any form of sexual relationship with students is a serious violation of professional ethics and the law. We should firmly oppose and not tolerate the spread of such immoral content.
No. Rough sex fan fiction is not appropriate as it often contains sexual and potentially disturbing content that goes against general moral and ethical standards.
Rough sex fan fiction is a type of fictional writing created by fans that may involve sexual content with elements of roughness. However, this kind of content often contains adult and inappropriate themes, which may not be suitable for all audiences.