MANY OF US WOULD LIKE TO HAVE A SMALLER BACKSIDE, BUT A GROWING NUMBER OF PEOPLE ARE ACTUALLY GOING UNDER THE KNIFE FOR A BIGGER, ROUNDER BOTTOM. WHILE THE NUMBER OF BREAST IMPLANTS, LIPOSUCTION, TUMMY TUCKS AND FACELIFTS ALL DECREASED FROM 2007 TO 2008, BUTT AUGMENTATION INCREASED NEARLY 10-PERCENT. A QUICK WARNING THIS STORY CONTAINS BEFORE AND AFTER PICTURES OF BARE BOTTOMS. J-LO HAS IT. SO DOES BEYONCE. KIM KARDASHIAN IS FAMOUS FOR IT. WE'RE TALKING ABOUT A BIGGER, ROUNDER BUTT! "The idea of having a full, firm butt is something that's gained popularity in recent years." FROM 2000 TO 2008, BUTT LIFTS INCREASED 162-PERCENT. DOCTOR ADAM RUBINSTEIN (ROO-bin-steen) ENHANCES BUTTS WITH FAT GRAFTS. FIRST, HE DOES LIPOSUCTION. "And then you use that fat and re-inject it into the buttocks. This is your stuff. We're taking your tissue and using it in your body." ONCE TRANSFERRED, THE FAT CREATES A ROUNDER, FULLER BUTT -- EVIDENT IN THESE BEFORE AND AFTER PICTURES. "The fat that we remove in liposuction and put into the buttocks with transfer should go on and live as long as the patient does." RISKS INCLUDE BLEEDING AND INFECTION. "Feeling better about how you look, it helps in every way." ANNA PAGANI HAD GASTRIC BYPASS, AND SHE SHED 140 POUNDS. TODAY, SHE'S HERE FOR HER SECOND BUTT LIFT. "It was very good. It gave it a very good shape, you know, made it more even, more rounded." AT ALMOST 50 YEARS OLD, SHE SAYS SHE JUST WANTS TO BE HAPPY IN HER OWN SKIN. "Losing the weight and then fixing all the problems that were left from the overweight, it just makes me feel better. It makes me feel more confident." BUT OF COURSE, THAT CONFIDENCE COMES AT A PRICE. BUTT LIFTS RANGE FROM EIGHT-THOUSAND TO ABOUT 18-THOUSAND DOLLARS. THE FAT THAT IS TRANSFERRED WILL GROW AND SHRINK AS THE PATIENT EITHER GAINS OR LOSES WEIGHT. IMPLANTS ARE ANOTHER OPTION FOR BUTT AUGMENTATION, WHERE DOCTORS ACTUALLY INSERT SILICONE GEL IMPLANTS UNDER THE SKIN -- LIKE BREAST IMPLANTS. DOCTOR RUBINSTEIN SAYS IMPLANTS CARRY MORE RISKS LIKE SHIFTING, NERVE COMPRESSION AND MORE PAIN.