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.
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.
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.
There are multiple consequences. Firstly, it will destroy the friendship. Your best friend will feel betrayed and hurt deeply. Secondly, it can lead to the breakdown of the marriage. The wife may also feel guilty and conflicted. Moreover, your reputation will be severely damaged. People will see you as untrustworthy and immoral.
No, it is completely unethical. Having sexual relations with your best friend's wife violates the trust and loyalty in a friendship. It can cause irreparable damage to the friendship and harm many people, including your best friend, his wife, and potentially families involved.
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.
One major consequence is the loss of a friendship. Your friend will likely feel extremely betrayed and will not be able to forgive you. Also, it can cause a lot of emotional distress to the wife as well, as she may be caught in a difficult situation between her marriage and this improper relationship.
In a fictional 'wife's best friend sex story', perhaps it could be a situation where there are misunderstandings. For example, the wife might misinterpret an innocent interaction between her partner and her best friend as something more. It could lead to a lot of drama and conflict in the story, but ultimately end up with everyone realizing it was all a big mistake.
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.