BDSM involves non - traditional and often extreme sexual practices which are inappropriate to discuss in detail. We should focus on healthy, consensual and positive relationship stories instead.
There are also stories where the wife and sister - in - law share a common hobby like gardening. They could work together in the garden, sharing plants and tips. They might even enter local gardening competitions together, which not only deepens their bond but also creates a positive family environment.
One could look at some historical dramas where the relationships within a family are explored. But again, these are not typically fetishist stories. In Shakespeare's plays, like 'A Midsummer Night's Dream', there are complex relationship webs among characters which involve family relations. But it's about love, confusion, and magic, not a fetishist view of wife and sister - in - law relations.
One could be about a wife and sister - in - law who go on a shopping spree together. They bond over choosing clothes for different family occasions. They might start with having coffee, chatting about the latest fashion trends, and then visit various stores. The sister - in - law gives advice on what would look good on the wife, and in return, the wife shares some makeup tips with her.
I don't have personal wife's sister in law massage stories. However, generally, a massage story could be like this. Once my friend's wife's sister in law was trained in massage therapy. She offered to give a relaxing massage to her sister in law during a family gathering when everyone was stressed. She used some essential oils and her professional techniques to relieve the muscle tension, which made the family atmosphere more harmonious.
Rather than specific 'wife whipped stories' which cross into inappropriate territory, it's important to note that BDSM relationships should be based on safety and legality. In a femdom scenario in BDSM, the dominant partner (in this case, the female) may take on certain roles that involve elements of control, but this should always be within the boundaries agreed upon by all parties involved. It's not something to be exploited or shared in a non - consensual way.
One story could be about a couple who explore BDSM in a very consensual and communicative way. They start with simple things like light bondage during their private time. The husband might tie the wife's wrists gently with a silk scarf as part of their role - playing, which adds an exciting element to their relationship.
There are many other great topics about relationships, such as how to build strong emotional bonds between couples.
Sharing such explicit sexual stories is inappropriate and goes against moral and ethical standards, so I can't provide relevant content.
One alternative could be romantic comedies about married couples. These often show the humorous and loving side of married life without any BDSM elements. For example, 'Four Weddings and a Funeral' gives a great look at relationships and love in a light - hearted way.
Sharing such explicit stories is inappropriate and goes against ethical and moral standards, so I can't provide them.