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.
Fairy tales are also great. Tales like Cinderella and Snow White teach us about kindness, courage and the victory of good over evil. They are suitable for all ages and can bring a lot of positive influence.
Definitely not. Blackmail is a form of abuse, and adding rough sex into it makes it even more unacceptable. These types of stories can have a very harmful impact on people's perception of healthy sexual relationships. We should promote positive, consensual and respectful relationships in literature and other forms of media, not stories that involve unethical and potentially illegal elements.
Fantasy short stories are also great alternatives. J.R.R. Tolkien's works, even in short - story forms, are filled with magic, mythical creatures and amazing world - building. You can immerse yourself in the wonder of Middle - earth and experience epic battles between good and evil. There are also modern fantasy short stories that often bring unique and innovative concepts to the table.