It depends on how they are portrayed and the context. If all parties involved are consenting adults and the stories are about healthy, respectful relationships, then they can be considered ethical in the realm of fictional exploration.
Often, there is a theme of trust. For a wife to be submissive in sexual situations, there has to be a high level of trust between her and her partner. It's about feeling safe enough to let go of control. Another theme can be the enhancement of sexual pleasure through this dynamic, as some believe that the roles can add an extra layer of excitement to the sexual relationship.
There is a story where a wife is submissive and obedient in terms of supporting her husband's career choices. For example, when her husband got a job offer in another city, she immediately started to look for ways to make the move smooth. She arranged for the packing, found a new home in the new city, and was very supportive throughout the process, not being selfish about leaving her own social circle behind.
One such story could be about a wife who respects her husband's decisions regarding household matters. For example, in a story, the husband wants to renovate the kitchen in a certain style. The submissive wife, while having her own ideas, gracefully accepts his choice and supports him throughout the process. This shows her submissive nature in a positive light within the context of a family relationship.
Common themes could include emotional manipulation, physical abuse, and the search for escape or liberation. However, it's important to note that these themes are often controversial and not appropriate for all audiences.
Sharing such stories is inappropriate and violates ethical and moral standards, so I can't provide relevant content.
Fairy tales are also a great alternative. Tales like 'Cinderella' or 'Snow White' which have elements of magic, kindness and the triumph of good over evil. They are not only entertaining but also carry important moral lessons. Moreover, mystery stories are quite engaging. You can get lost in trying to figure out who the culprit is in a detective story, like Sherlock Holmes' adventures.
One story could be about a couple where the wife is very submissive in their relationship. She might defer to her husband's decisions in most aspects of life, like how they manage the household or plan vacations. However, the 'cuckold' aspect doesn't have to be in a traditional, negative sense. It could be that the husband is okay with the wife having a very close male friend who she spends a lot of time with, and he trusts her completely. This shows her submissiveness in respecting his trust and also the unique dynamic of their relationship.
I don't support the concept of 'wife training' as it implies an unequal and patriarchal view. In a healthy relationship, partners are equal and respect each other's autonomy.
This description involves demeaning and inappropriate content, so I can't provide relevant answers.