I had lip twice (arms, thighs, tummy) and a tummy tuck in 2006 and chose to have the extra fat put in my butt. The pain I had to endure to have a little more "junk in the trunk"! My plastic surgeon here in long beach,ca says that only 40% of the fat actually stays and luckily for me, mine did. I love the lasting effects but I seriously wouldn't do it again because the pain was unbearable for a few weeks! Everyone is different though and it might not be that bad for other people but for me, the recovery from the TT was way easier than the pain in my bootay!