First off, you are curvy, you are lucky... I love my curves and embrace them, however I feel your pain in that not everything looks good on us due to the curviness we are blessed with, in my opinion you should be honest, it's not your day, however you were asked to be a part of it and I think you should be comfrotable too. I'm sure if you talk to her about it she will understand. We are here for you darling!