So in the February 2014 study edition of the Watchtower there is the article, Rejoice Over the Marriage of the Lamb. In paragraph 6 it identifies the future bride as "the king's daughter." This daughter is identified as the anointed. You can see where I'm going with this already, can't you?
If they are "the daughter" of Jehovah, "the king," then they are also the sister of the Son of God. Not only that but they are the brothers of Christ, and then son and daughter and brother and sister and son and son are going to get married.
Hmm...