Your current body fat seems to be sufficient for the procedure, as fat for BBL is harvested through liposuction from areas like the abdomen, flanks, and back. Gaining weight could potentially provide more fat for liposuction and fat transfer, but not all fat gained is usable for the procedure, and some may go to internal fat stores that cannot be used for transfer. If you’re seeking a more proportional look with a focus on a fuller butt without increasing your hips too much, liposuction to create an hourglass figure will help enhance your shape, and the transferred fat can create fullness in your gluteal area. It is very rare that I request a patient to gain weight for a BBL. Consulting with an experienced plastic surgeon is the best next step. They can provide personalized advice, evaluate your body, and help you determine the most effective approach for achieving the results you want. Krishna Vyas, MD, PhD, MHSHarvard, Hopkins, & Mayo Clinic Trained Aesthetic Plastic SurgeonNew York, New York