There are 2 ways of doing breast implants from an anatomical standpoint. The implant can be placed above the muscle (subglandular) or under the muscle (submuscular). I prefer the placement of the implant under the muscle for many reasons, including ease and accuracy of mammography, stability of implant pocket, and natural feel of breast with implant tucked behind the muscle. For those reasons, I would recommend a breast lift with an implant in your case, given the significant amount of sagging shown in the photos. With submuscular placement, the breast tissue will be sagging below the implants, necessitating a lift. If you would like to have an implant without a lift "at all costs", then you may consider having the implant placed in the subglandular space. With this technique, you will avoid scars; however, the implant will droop down with the breasts since there is no muscle to hold it in place. The aesthetic result is definitely inferior to that of a submuscular implant coupled with a breast lift. It may also be felt under the skin, and it may compromise mammography reading. Ultimately, it is best if you consult with a board-certified plastic surgeon who is experienced in breast implants and lifts and discuss with them your wishes.