Dear Gilzaa, Butt implants flipping or rotation are very rare when the right measures are taken. Besides, fat injection is a waste of time and money, because the fat disappears completely or almost completely after few months or even sooner, as I have witnessed with many patients who came to my surgery center for butt implants surgery after their big disappointment from the fat injection surgery that was done by other surgeons. My technique involves oval round implants placed in a sub fascia pocket (above the Gluteal muscle). The advantages of this technique over the intra muscular technique are the followings: 1. Much larger implants size possible. The biggest that I have used is 660 cc , but bigger implants can be used when the anatomy allows it. 2. More natural look with nice 'S' curve, because the pocket is dissected up to the posterior Iliac crest bone , where the Gluteal muscle attaches to. 3. More round butts, because the implants can extend to the lateral indentation under the hips. 4. Quicker recovery with less pain since the pocket is above the muscle. To avoid rotation of the implants, I stitch them to the fascia, make a precise pocket and apply a Velcro binder on the butt for one month. This manoeuvres stabilize the implants until the capsule (scar) around the implants becomes strong and holds the implants in their desired place. Always, consult with experienced board certified plastic surgeons who do lots of butt implants surgery in accredited surgery center for your safety. Most importantly, check the before and after pictures in the photo gallery, to make sure that they are numerous, consistent and attractive. Read also the 'realself' reviews for positive experience reports. Best of luck, Dr Widder