No, oh no. This is a bit of a bridezilla-moment for me, if you will. And I don't think there will be many brides in agreement with me here, because I see it everywhere, ev-er-y-where! And quite frankly, it makes me think that you really hate your friend, or you so scared that she will look so much hotter than you on your wedding day, so you put her in this extremely unpleasant, unflattering monstrosity. It makes me want to cry.
Just remember one thing ladies, this is your wedding photos and memories we are talking about, and if you want to look at your friend's saggy boobs for the rest of your life, and it is your fault, then so be it. But please, people, please reconsider the twisty convertible piece of nylon garbage you are putting your friends in. And sorry if your face appears in the next few photos, but I am trying to make my point.
I am probably writing out of fear here, that someone puts me in this someday. It's not fair to big chested girls to put them in a dress like this. Really, not fair. Love your friend, and give them support.