A: Sort of. You can explain why you want her to be visually ID'd as part of your girl tribe, and ask that she wear the dress until the reception's over. But unless she's just being picky, chances are she feels truly unattractive in the dress. Ask her if there's something specific about it that bothers her. Is it the shape? Does she think it reveals too much skin? If the dress hasn't been ordered yet, see if there's a more complimentary silhouette in the same color that suits her better (it's okay if your maids aren't exact matches). If she's already put down a deposit, a visit to a good tailor might make a big difference.