As part of our wedding party, my FI and I decided to ask my neighbours twin daughters to be our flower girls. Their mother is thrilled that I'm including her daughters as this will most likely be their only opportunity to do so except that she has another daughter who will only be 3 and a half at the time of our wedding, and has now mentioned casually in conversation to my mother that she was wondering if I'd consider having her third daughter as well. As much as I can see where she's coming from I'm wonder if 3 flower girls is just too many. I also have concerns that her youngest may be too young to understand what's going on. My FI and I have discussed it, but we really have no idea what to do. I want to be able to give my neighbour an answer...please help!