As if you needed proof that a more ample derriere is, in some quarters, the thing to have, the American Society of Plastic Surgeons has released statistics showing that procedures to increase the size of women's bottoms were among the fastest growing cosmetic surgeries last year.

The number of buttock augmentations, which use grafts or injections of fat from other parts of the body, rose to 11,505, up 15 percent from the previous year. Buttock implants hit 1,863, a 98 percent increase from the year before, and the number of buttock lifts reached 3,505, up 44 percent, according to a report released Thursday.

Scot Glasberg, president of the American Society of Plastic Surgeons, said there's no doubt that stars flaunting what's in the trunk started the trend. "The media effect, Kim Kardashian, Jennifer Lopez, are having a phenomenal effect on what patients want, what they are coming in and asking for," Glasberg said.

Kardashian, of course, famously broke the Internet in November with photos of her well-oiled, well-endowed rear end in Paper magazine. Rapper Nicki Minaj was the subject of heated online debate over her ballooning buttocks, and pop stars Lopez and Iggy Azalea showed off their assets in their "Booty" performances.

But it's improved technology that has allowed plastic surgeons to deliver what some women want. Buttock implants don't really work well, Glasberg said, but the ability to remove fat from one area of the body, inject it into another and have it stay put in a desirable shape is really (wait for it) behind the numbers, he said.

"It's a much better option than we had with implants," he said. Costs run about $7,000 to $10,000, often depending on where patients have their surgeries.

Not surprisingly, more men also sought to get bigger, but not where you're thinking: 1,054 guys had pectoral implants in 2014, a 208 percent increase from the previous year. That didn't come close to matching the number who looked to get smaller: 26,175 had breast reduction surgery, a 14 percent increase over 2013.

Glasberg said the growing acceptance of cosmetic surgery for men and the increased popularity of procedures that result in subtle changes have driven this trend. Pectoral implants and other surgeries favored by men aren't nearly as dramatic as buttock augmentations, he said.

None of these surgeries rivaled the continued popularity of breast augmentation (286,254 procedures, down 1 percent from 2013); nose reshaping (217,124, down 2 percent); liposuction (210,552, up five percent); eyelid surgery (206,509 down 4 percent) and facelifts (128,266, down 4 percent), according to the report.

Among minimally-invasive procedures, Botox treatments (6.7 million procedures, up 6 percent from 2013) led the way, followed by soft tissue fillers (2.3 million, up 3 percent); chemical peels (1.2 million, up 7 percent); laser hair removal (1.1 million, up 3 percent) and microdermabrasion (881,905, down 9 percent).

All told, there were 15.6 million cosmetic procedures in 2014, an increase of 3 percent over the previous year. Nearly 14 million were minimally invasive; the rest were surgical. In addition, surgeons performed 5.8 million reconstructions, including 102,200 breast reconstructions. The vast majority of reconstructions (4.4 million) followed tumor removals, including skin cancers.

The data come from an online survey the organization -- one of two major cosmetic surgery groups in the United States -- conducts among its more than 7,000 members and more than 21,000 other physicians likely to perform such surgeries. It received 953 responses and used data from an online database that tracks plastic surgery procedures. The survey is accurate to plus or minus 3.77 percent, according to the organization.