Jaindoe,
There are often many possible answers to any given cosmetic surgery scenario or question. Having your picture is certainly helpful to giving you an answer without an in person consultation. I would say that you have maintained a nice breast shape after weight loss and couple that with your desire to have natural look and minimal scars, in addition to taking into consideration your profession, a breast augmentation with silicone implants placed through a small incision at the lower edge of the areola should be able to give you the look and feel you are looking for. I have performed many breast augmentations with silicone implants through this incision and this typically heals very well to the point that the incision is often difficult to see.
Good luck.
