[The First Aria]

Does anyone know if there is  way to help develop the lower half of the breast more  I guess it's called underboob ? 
All my development seems to be on the top part of the breast. Starting to fill out from the sides more becoming a little more rounder.but the bottom half isn't really getting any more developed.

I really don't know of any reliable way to do that.  I have somewhat of the same problem.  I am just hoping that the bottoms with catch up eventually.