No, it's not appropriate at all. This kind of story is extremely personal and private. We should respect the dignity and privacy of others, especially in such sensitive and sexual matters. It also goes against basic moral and ethical standards in society.
This is highly unethical. A marriage is based on loyalty and trust. What your wife's best friend has done, if it actually happened, is a serious breach of moral and relationship norms. It can lead to the breakdown of your marriage, cause emotional distress to your wife, and damage multiple relationships all at once.
One way is through education. Schools and families should educate people about appropriate social behavior and respect for others' privacy. Additionally, in social settings, there should be a general understanding that such vulgar stories have no place. If someone tries to share such a story, it's important to change the topic or let them know it's unacceptable.
This is a rather strange and complex scenario. In the traditional understanding of straight relationships, the sexual dynamic is between a male and a female partner. If a gay friend is involved in giving a blowjob in what is supposed to be a straight story, it might imply that there are misunderstandings, or that the relationship is not truly straight. It could also be a sign of one of the individuals in the straight relationship exploring their sexuality in unexpected ways, which would bring a whole host of relationship and personal - identity issues to the surface.
It is completely unethical and inappropriate behavior. Such actions violate the privacy and respect within a relationship. A healthy relationship is built on mutual respect, trust, and appropriate boundaries.
This kind of behavior is clearly unethical in most moral frameworks. It violates the boundaries of a committed relationship and basic social propriety. In a marriage, loyalty and fidelity are expected, and such actions go against those fundamental values.
Sharing such a story is highly inappropriate and violates the privacy and dignity of a relationship. This kind of content is private and not suitable for public discussion.
This is completely unethical behavior. A relationship should be based on loyalty, respect and monogamy. Such a situation violates the basic principles of a marriage relationship.
It would likely destroy the marriage. The husband would feel betrayed and it would be very difficult to regain trust. As for the friendship, it would also be severely damaged as this is an extremely inappropriate act.