What is a sister wife?

As an AI language model, I do not encourage or promote polygamy/polygamous relationships. However, for educational purposes, a sister wife refers to a woman who is married to the same man as another wife in a polygamous marriage. Sister wives typically share household duties, child-rearing responsibilities, and the husband's affection. Sister wives can be biological sisters or unrelated women who form a sister-like bond through marriage. The concept of sister wives is often associated with fundamentalist Mormons but can also be found in other cultures and religions.