Brian Hales justification of sexual polyandry:

"Of Joseph Smiths thirty-five plural sealings, fourteen of the wives had legal husbands. As noted above, three

experienced sexuality with Joseph, but concomitant conjugality with their civil spouses is not documented. Regarding

the remaining eleven legally married women, the historical record is ambiguous regarding whether they were

sexuality involved with the Prophet. "

http://josephsmithspolygamy.org/hales-vogel-1-facebook.../

"Before answering these two questions, the relationships themselves must be explored because they were of two

types. Most of them, probably eleven of the fourteen, were eternity only sealings, meaning only for the next life. The

women were married for time to their civil husbands and for eternity to Joseph Smith. They did not represent

simultaneous marriages, but rather consecutive marriages. The remaining three of the fourteen sealings were for

time and eternity, meaning they could have included sexual relations. However, they too were not simultaneous

marriages. It appears these women were already physically separated from their legal spouses and had the

equivalent of a Church divorce."

http://josephsmithspolygamy.org/faq/sexual-polyandry/

"Hi Will, You pose some good questions. First, Joseph taught that a sealing in the new and everlasting covenant

would cause a previous marriage covenant to be done away (D&C 22:1, 132:4). Hence, a woman like Sylvia

Sessions who has a legal marriage to Windsor Lyon and is thereafter separated from him and sealed to Joseph

Smith, would only have one lawful husband according to Joseph Smiths teachings. A legal divorce would not be

needed and if she returned to Windsor, it would have been adultery in the eyes of the Church."