Without pictures we cannot make an assessment. Generally speaking someone who weighs 300 pounds is not a candidate for a BBL and there’s a high likelihood they will never be a great or even good candidate for this procedure. The only appropriate change you need his weight loss. Successful weight loss after morbid obesity(greater than 100 pounds over ideal weight) typically leads to severe skin laxity making skin laxity the appropriate procedure.Not only will skin laxity become much more of an issue but patients with skin laxity typically make for poor candidates for both liposuction and fat transfer procedures.Almost universally patients who weigh 300 pounds should focus all their efforts a losing weight and with successful weight loss should focus your energy on skin laxity procedures like extended tummy tucks a.k.a. body lift, breast lift, thigh lifts and arm lifts.These are the procedures that are going to have the greatest impact and restore your body to looking normal.Talk to your primary care doctor about a referral for bariatric surgery or join support groups and join others who are successfully helping each other lose weight through organizations like weight watchers or overeaters anonymous.Best, Mats Hagstrom MD
