Ok so my dress fits perfectly and doesn't need any alterations, not bad for an off the rack dress. However, me and my B cups don't fill out the bust completely (it doesn't look bad, just not all the way full) so I was going to get some of those gel/silicone pads. This may sound dense, but do I need to get a bigger bra to accomodate the pads? Or if I use my usual size bra (which I already have) will it give "the girls" more lift? I don't want to look fake and busty when everyone who knows me knows that I'm not.