Perhaps she was under the influence of alcohol or some substances that made her lose her inhibitions. Another possibility is that she has some very different ideas about body freedom and family gatherings that are not in line with the norm.
One reason could be that she has recently been exploring some extreme ideas about self - expression and body acceptance. But she failed to realize that a family party is not the place for such extreme forms of self - expression. Another aspect could be related to some psychological issues she might be having, like a desire to shock people or a lack of understanding of social boundaries. But this is just speculation. In any case, it's crucial to address this issue with her in a proper and understanding way.
One reason could be for shock value. Writers or storytellers might create such scenarios to get a strong reaction from their audience. Another could be to explore themes of liberation in a rather extreme way, but this is still not a common or acceptable way to do it.
Maybe she was under the influence of drugs or alcohol and lost her inhibitions. But that's no excuse as she should still be aware of proper behavior.
There could be some psychological factors at play. If your wife is overly comfortable in her own space and not fully aware of social boundaries, it could lead to such a situation. Or perhaps she was under some sort of stress or distraction that made her forget about the presence of your friends. It's also possible that there was a lack of proper communication between you two about having guests over and what is appropriate behavior during such times.
Perhaps she was part of some avant - garde performance art piece in the fictional world of the story. However, this would still be a very controversial and boundary - pushing concept. It could also be that she was trying to make a statement about freedom or break free from some form of social constraint, but it's a very extreme way to do so in the context of a party.
Maybe she wanted to be more comfortable. Parties can be long and wearing a bra might feel restrictive.
She might be under the influence of alcohol or drugs which could impair her judgment. Sometimes excessive drinking can lead people to do things they wouldn't normally do.
It is completely inappropriate. Family parties are supposed to be family - friendly and modest events. Going naked violates basic social norms and can make family members extremely uncomfortable and embarrassed.
The idea of a sister wife loving to be naked might seem strange at first. In some cultures, nudity is strictly taboo, while in others there are more liberal views. If she has this preference, it could potentially stem from a sense of self - acceptance and a desire to be free from the constraints of clothing. But she also has to consider the impact on her family members, especially in a polygamous family where multiple relationships are involved. There needs to be communication and mutual understanding to ensure that everyone's feelings are respected.
There could be several reasons. It could be an accidental situation, like she thought she was alone in a part of the house and didn't realize your friends could see her. It could also be a sign of a deeper issue in your relationship. Maybe she feels neglected and is trying to get a reaction from you. Or it could be a cultural misunderstanding if she comes from a background with different norms regarding nudity and privacy.
This is a very awkward and unacceptable situation. Firstly, make sure to protect your wife's privacy as much as possible in that moment. After the party, sit down and talk to her about why this is not okay. It could be that she misjudged the situation or there was some misunderstanding, but it's important to set clear boundaries for family gatherings.