One possible scenario could be that the wife's best friend has always had a secret crush on the husband. In the story, she might accidentally let it slip out in a moment of weakness or when under the influence of alcohol. This revelation could cause a huge rift in the relationship between the wife and her best friend, and also put a strain on the marriage.
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.
In a story, the 'wife slut story' could be the result of a cultural misunderstanding. For instance, the wife is from a different culture where physical affection among friends is more common. When she moves to a new place with her husband, she hugs and kisses her friends of both genders on the cheeks as a normal greeting. But the local people, who are not used to such displays, start gossiping and creating a 'wife slut story' around her.
One possible plot could be that the wife's best friend is an artist's model. She might be posing naked for an art class in a very professional and respectful environment. The wife could be involved in some way, like she's helping to organize the art event or she's there to support her friend's career choice.
One possible plot could be that two wives discover they are in love with the same man. They initially try to be civil but as their jealousy and possessiveness grow, they start to engage in a series of verbal sparring. This could escalate to a more physical 'fight' not in a violent sense but more of a competitive one, like trying to outdo each other in cooking the man's favorite meal or impressing him at a party. Eventually, they realize that the man isn't worth their friendship and make up.
Fictionally, it might be achieved by bending the rules of time and space in a very extreme way. Let's say the time traveler's journey through time not only allows them to move forward or backward in a linear fashion but also creates duplicates of themselves that exist independently. These duplicates, due to some strange time - travel anomaly, might not recognize the other as the same self and engage in sexual activity. But this is really stretching the limits of believability and is more of a thought - experiment in wild fictional concepts.
Well, in a very strange fictional world, perhaps it could be about a miscommunication in a magic spell gone wrong that causes an accidental 'fisting' - like situation during a wizard's experiment on his wife, which then leads to a series of comical attempts to reverse the spell.
Well, it could be about a wife who decides to go on a wild adventure in a natural setting, like a forest, without any inhibitions, exploring nature freely. Maybe she discovers a hidden part of herself during this experience.
Well, perhaps the husband's best friend is a fitness enthusiast. The wife had been wanting to get in shape. So, the best friend offered to be her personal trainer for a while. They would go to the gym together, and he would give her tips on exercise and diet. This not only helped the wife achieve her fitness goals but also made their relationship more like a family. The husband was glad that his wife and best friend could be such good friends and support each other in a healthy way.
Well, perhaps the wife is in a mischievous mood. She tricks the stranger at the gloryhole by making sounds or movements that are not normal. Maybe she uses a device to create some spooky noises on the other side, scaring the stranger. It could be part of a comical story where the stranger overreacts and runs away in a panic.
Well, perhaps the husband in the story discovered his Asian wife was seeing another man. Maybe he found out in a very public and embarrassing way, like being confronted by the boyfriend in front of friends or family. This could lead to him feeling humiliated as his relationship was being violated in such an open manner.
In some fictional stories, a character might consider it because they are in a situation where they are feeling unloved or unappreciated in their own relationships. But this is no excuse. They might also be influenced by a sense of envy towards their best friend's relationship, thinking that having his wife would somehow make them feel better. However, all these reasons are just wrong and unethical justifications in the real world.