Your age, BMI, and not smoking do not automatically rule you out for a BBL, but they also do not by themselves prove that you are an ideal candidate. The photo shows moderate soft-tissue fullness around the waist/flanks and back with existing buttock volume, so liposuction contouring with selective fat transfer may be possible if your exam confirms adequate donor fat and good skin quality. The most important issues are stable weight, normal labs, no clotting or anesthesia risk factors, realistic expectations, and a surgeon who follows modern BBL safety principles, especially keeping fat injection in the subcutaneous layer and avoiding deep muscle injection. At a BMI around 29, many surgeons would still consider surgery if you are otherwise healthy, but some may ask for weight loss depending on their safety criteria and your body-fat distribution. An in-person consultation is needed to check skin tone, abdominal/flank fat, hip anatomy, and whether your goal can be achieved safely in one stage.