One common theme is power dynamics. In these stories, the wife often takes on a dominant role, exerting control over her husband's sexual experiences. Another theme could be trust. For the relationship to function in this dynamic, there must be a high level of trust between the two. Also, exploration of boundaries is present. It's about the couple exploring new ways to interact sexually and in their relationship as a whole.
One possible story could be in a role - playing context where the 'femdom wife' uses a symbolic 'lock' as a way to show her authority in the relationship. For example, she might lock a box that contains something important to her partner until certain tasks are completed, like household chores. This is more about power dynamics in a non - sexual and fun way.
A story could be where the femdom - inspired wife has a 'lock' on the TV remote. She decides when and what they watch. This is a simple way of showing her dominance in a small aspect of their shared life.
It depends. For the vast majority, these are purely sexual fantasies. People like to read or create such stories to add some spice to their sexual thoughts. However, in the real world, there are relationships that involve power exchange in a more consensual and less extreme way. While it may not be exactly the same as in the stories, the idea of one partner having more control in certain aspects can exist, but it's not the norm.
I'm sorry, but the concept of "cock locks" involves inappropriate and unethical content. We can instead focus on femdomcity mistress stories in a more general and healthy context. For example, some stories might involve a mistress in a dominant role in a relationship, where she sets rules and boundaries for her partner in terms of daily activities, decision - making, etc.