Bridesmaid #1 is very large-chested and has thus requested a dress with straps. No problem. We found one without straps that she liked, and I bought the extra material so that she and the other girls could add a halter strap if they wanted. Bridesmaid #2 is also large-chested and B #1 has pointed out that B #2 constantly pulls up any strapless dress/shirt that she wears. I personally never noticed it before, but now of course I notice it whenever she wears anything strapless.
I don't really care if all the dresses have straps. I just worry about this girl constantly pulling up the dress during the wedding and reception for her sake (apparently others have noticed and commented). If you were B#2, would you want me to point this out? Or just avoid possibly offending her and let them do whatever they want.
I know there's no "etiquette" really here - I'm just wondering what you personally would prefer if you were B #2