Women who want bigger breasts without implants or scars now have another option, but it can take weeks to get the final results.

This bra-like suctioning device called Brava, used before and after fat injections into the breasts, give women larger results than fat injections alone according to a new study partially done at the Miami Breast Center.

"They're large enough for my friends to notice, but they are also natural enough that I can deny it," said one patient.

That's why this 33-year-old patient did not want her name revealed.

She wore the Brava daily for a total of three and half months.

"It has a little bit of suction. It just kinds of grabs onto the skin and stays there with a light type of pressure, like a little suction pressure," she says.

That allows more fat to be injected by expanding the breast tissue before this procedure. Fat is harvested from the patient using liposuction. Doctor Roger Khouri, a cosmetic surgeon, invented the Brava system.

"In a small breast, there's no room to cram a lot of fat cells. People historically have tried to stuff it and the capacity is not there. If you crowd them, they all die and you'll fail. The graft won't survive," says Dr. Khouri.

Research in this month's journal of Plastic and Reconstructive Surgery looked at 81 women ages 17 to 63. It said the 71 who were compliant with Brava wear saw larger breasts, higher fat graft survival and minimal complications.

"We wanted to prove that it actually works. There's no reason not to do if you do it right," says Dr. Khouri.

(Information courtesy NBC News)