Definitely not appropriate. Stripping is an extremely private and intimate act that should be reserved for a partner in a committed relationship. If a wife does this for friends, it shows a lack of respect for her marriage and her husband. It can lead to jealousy, anger, and a loss of trust in the relationship. Moreover, it can have a negative impact on the social circle as it goes against the norms of proper behavior.
It is completely inappropriate for a wife to strip for friends. This violates the boundaries of a marriage and basic social ethics. It can lead to a breakdown in the marriage relationship, as it is a form of infidelity in an emotional and physical sense. It also makes friends uncomfortable and can damage the wife's own reputation severely.
No, it's not okay. In most cultures and moral systems, this is unacceptable behavior. Marriage is a relationship based on loyalty and respect. Stripping for friends goes against these principles. It can cause a great deal of emotional harm to the husband, and may also create a rift among friends. Friends might view the situation as inappropriate and distance themselves.