I have about 10 months til my wedding but my fiance has asked his sister to stand on his side as a groomswoman....she asked me what she should wear. He is clueless about it. I think she wants to know so she can save up for a dress if it's something we pick out.I was thinking just a black dress in any style to match the black tuxes or the bridesmaid dress in black (instead of the green the bridesmaids will be wearing), both with a colorful bouquet or corsage. What do you think? or what have you done?