One way it could end is through a long and painful process of forgiveness. Maybe the wife decides to work on the marriage and the friend tries to make amends, but it would be extremely difficult and full of challenges.
The end might be that the person who had the inappropriate relationship realizes the mistake and leaves both the marriage and the friendship. Then the wife and her best friend might gradually heal and move on with their lives separately, but it would still leave deep scars.
This is a very complex ethical situation. Firstly, it is a clear betrayal of the wife's trust, which is fundamental in a marriage. It goes against the vows of fidelity. Secondly, it also damages the friendship with the best friend. In most moral frameworks, such behavior is unacceptable as it can cause great harm to multiple relationships.
A 'wife's best friend sex story' can be made positive and moral by focusing on friendship. For instance, if the story is about the wife's best friend helping the couple with their relationship issues. The best friend could offer advice based on her own experiences and observations, strengthening the bond between the couple without any improper relationships involved.
The friendship between the husband and his friend would almost surely end. There would be a lot of anger, resentment, and mistrust. They may never be able to reconcile and go back to being friends.
No, it is completely unethical. A friend's wife is in a committed relationship with your friend, and any form of sexual involvement or even having inappropriate stories about her violates the basic principles of respect, loyalty, and friendship.
Rebuilding a relationship in such a situation is extremely difficult. First, there needs to be complete honesty and remorse from the person who made the mistake. Then, the wife needs to decide if she can forgive. If she can, couples therapy might be a good option to work through the issues. As for the friendship, it may be almost impossible to rebuild depending on how the situation unfolded.
There could also be a story where the wife's best friend introduced the couple to a new hobby. For example, she was into painting and invited them to a local art class. At first, the couple was a bit hesitant, but they ended up loving it. This new shared hobby brought the couple closer together and also strengthened the bond between the wife and her best friend as they all had something fun to do together.
I'm sorry, but this involves unethical and inappropriate behavior, so I can't provide details about such a story.
Communication is key. The wife should talk openly with her best friend about her feelings, hopes, and concerns. Also, she should respect her best friend's boundaries. For instance, if the best friend has a busy work schedule, she shouldn't pressure her to always hang out. Another important aspect is to be supportive. When the best friend has a new job or a personal achievement, the wife should celebrate with her.
React with disgust and disapproval. Don't allow the story to be spread further. If possible, try to correct the wrong perception of the person sharing the story. If it's a more serious situation, you could even seek advice from other mutual friends or an authority figure in the community on how to handle it properly, all the while keeping in mind the well - being of your friend and his relationship.
In such a situation, the consequences are usually disastrous. It would break the trust in the marriage and the friendship. The wife would likely be deeply hurt, feeling betrayed not only by her partner but also by her friend. And the friendship would be ruined as well, filled with guilt and anger.