Hello, and thank you for your question. There are several variables that go into planning and undertaking breast augmentation, which include the overall breast shape, the starting volume, the skin laxity, and the position of the nipple-areola. A lot depends upon your starting chest wall anatomy and breast template. And how this all fits with your body shape. When considering what implant to choose, there are more things that come into the picture. These include the width, the overall volume, and the shape of the implant. The projection and the width are important in that they need to match the base width of your breast and still provide the fullness that you wish to achieve. Another factor is the distance between the nipple-areolae (plural) themselves. From your photos, the nipple-areolae are slightly wide. The options would include a slightly wider implant that would reduce the gap - but because it needs to be centered on the nipple-areola - this would also increase the distance laterally. Another option would be to use techniques to center the nipple-areolae but these would require external scars as skin would have to be removed. Putting implants into a breast often magnifies the little imperfections. As a general rule, it takes about 200 cc per cup size increase. It appears that you are closer to a small B. So, a 350-400 cc implant would be expected to give you a two cup increase to a D cup. We would then give you appropriately sized implants to try on at different volumes. In this way, you would have a very good understanding of what to expect. I would be interested to see how HP or HP Xtra sizers fit you. In our office, you would try on or 'test drive' the implants. Based upon the information, a range on implants would be ordered for your surgery. A board certified plastic surgeon will be able to identify your individual requirements and give you realistic expectations of what surgery can or cannot be achieved. Respectfully, Jules A Feledy, Jr, MD American Board of Plastic Surgery, American Society of Plastic Surgery