No, it's not common at all. Blackmail in any form, especially related to such personal and inappropriate matters, is unethical and illegal. Most people respect others' privacy and dignity.
There are many great literature works that are suitable for all ages, such as 'Pride and Prejudice', which can offer much more valuable reading experience.
No. Sharing such stories is inappropriate and often violates moral and ethical standards. It may also be against the law in many places as it involves vulgar and inappropriate content.
It depends on various factors. In a committed relationship, if it's something that is privately and consensually part of the couple's understanding, it might be okay. But if it starts to affect the relationship negatively, like causing a lack of real intimacy or making the partner uncomfortable, then it's not appropriate.
Definitely not. These kinds of stories are filled with sexual content which is not suitable for everyone. For example, in a family - friendly environment or among young people, it would be inappropriate to share or expose them to. Only adults who have a certain level of sexual maturity and are not easily influenced in a negative way should be the potential audience for mature sex stories.
In general, they are not. While literature may explore themes of love and relationships, explicit sexual content like that in'mature erotic sex stories' is not in line with the standards of good taste and propriety. There are literary works that deal with sensuality in a more tasteful and metaphorical way, but this is quite different from what is implied by such stories.
No. Reading such stories is not appropriate as they often contain explicit and vulgar content that goes against moral and ethical standards in most societies.
There are some works in the realm of adult literature that might touch on such topics, but they are not widely promoted or recommended. We should instead look for books that offer inspiration, knowledge and positive emotions.