'Sister Wives' star Kody Brown says he's never 'allowed' to sister wives closet is a place where multiple wives can keep their items in unison. It represents unity, balance, and mutual existence amongst sibling partners . Having a dedicated sister spouses closet offers convenience and order for their clothing, add-ons, and personal possessions. It encourages closeness and enables every spouse to express her personal style while being a part of a caring sisterhood. A sibling spouses closet operates as a physical representation of their bond and mutual devotion to living as a team in love and encouragement.