Hello! Thank you for your question. In general, implant size does not correlate with bra cup size. The cup size itself will vary from manufacturer to manufacturer as well as who is doing the actual measurements. Thus, cup size is never a reliable indicator for your breast size. I typically encourage my patients not to communicate her desires in cup size but more on the actual look and appearance. Good communication between you and your surgeon of your expectations is warranted - choosing your surgeon wisely is the first step. Discussion of your wishes and having an honest and open dialog of your procedure is mandatory (e.g, implant type, incision, placement, lift, etc). I have found that photographs brought by the patient is helpful to get a visualization of the appearance you wish for in terms of size, shape, fullness, etc. In addition, your surgeon's pre and postoperative photographs should demonstrate a realistic goal for you. Once this has been accomplished, allow your surgeon to utilize his/her best medical judgment during the procedure to finesse the best possible result for you after preoperative biodimensional planning and fitting the right implant for your breast width. Currently, the largest size breast implant in the market is 800cc. It is typical to overfill saline implants, which can make the saline implants slightly larger in this size. An implant size in the range that you desire for a breast augmentation is not possible today. While there is currently a study with breast implants which some surgeons including myself have access to, they are indicated only for breast reconstruction following mastectomy at this time; not available for cosmetic reasons. Placement of multiple implants into one breast is also not indicated. When too large of implants are placed for breast augmentation, they may cause physical issues for patients, let alone the uncorrectable breast deformity that may result from too large of an implant for a patient's breast. Consultation with a board-certified plastic surgeon will assist you in determining what would be a reasonable size range for you. Hope me that this helps! Best wishes for a wonderful result!