When is the best time to get bridesmaids dresses? I'm having all four of my sisters as my bridesmaids, they youngest being 16. So I think between now and the time I get marrid (2019) her body will change the most. I don't want to risk getting something that won't fit her when the tme comes?
I would look at bridesmaids dresses but not actually buy until nearer the time because, as you say, your sister's body may change. Maybe about 3 to 6 months before?