When I bought my gown I worked with 2 different consultants on 2 different days. One told me that the bra I was wearing would work very well. The other said I needed a bustier because the strapless bra would pull down. I need someone with experience to tell me which they'd go with and why. I don't want to spend the extra money if I don't need the bustier and I'm not chesty so I don't have to worry about big boob issues. Thanks!