No. The Church of Jesus Christ of Latter-day Saints (the “Mormon” church) banned the practice of polygamy (having more than one wife) over 120 years ago, in 1890. The only way that a Mormon man could have more than one wife in his lifetime is if he has been divorced or widowed then remarried – NEVER more than one wife at the same time.
Mormons are very strict about chastity and fidelity. Church members are expected to have sexual relationships only within a legal heterosexual marriage. Those who have sex outside of this context run the risk of being excommunicated from the church.
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