I have heard it is proper etiquette to let your maid of honor and BM's / GM bring dates to the wedding they are standing up in. I'm a bit confused with this, just because of personal experiences. I have stood up in 3 weddings, 2 of which a date was not invited for me, or any of the people standing up unless they were married. This made sense to me, I would be walking down the aisle, standing up for the wedding, and then sitting at the head table, why would I have a date? What have you/will you do for your BM's?