I am getting married in June of 2014, and I already know in my head some of the girls that I want to be in my wedding (my fiance's sister, my niece, my best friend) but I don't know when to ask them. I think I know how I want to ask them, but I just don't know when. I know that they are probably assuming that they will be in the wedding, so I don't want to wait so long that they are beginning to wonder if I am going to ask or not... Also, there are some other girls that I think I would like to have by my side, but I know that a lot can happen in 16 months, so I am ok with waiting to ask them. What do you guys think about the others? Should I go ahead and ask or should I wait and ask everyone at once?