Judging from pics taken of Ciara at last night's L.A. premiere of "Death At a Funeral", it appears that Ciara recently revised and upgraded her twins for the 3rd time. The recent surgery gives her artificial orbs a softer, fuller and more natural profile.
This would make breast surgery #3 for Ciara. The revisions over the years were subtle, but obvious to my trained eyes.
Still, I'm not a fan of plastic surgery when that option isn't even necessary. There was nothing wrong with Ciara's original factory equipment, and there is nothing sexy about breast implants.