Go figure! See how quickly Penélope Cruz, Kim Kardashian, Kate Middleton and more returned to their fab physiques
Credit: Limelight; Jason Merritt/Getty
Updated: Wednesday Oct 02, 2013 | 06:00 AM EDT
By: Brooke Showell
More from PEOPLE
See More News
See which stars are showing off a whole new look and attitude in 2013
11 of 19
Known for her super-sexy frame, it was no surprise the actress felt comfortable debuting her baby bump in a bikini. But she really turned heads Dec. 12 when she hit the This Is 40 premiere in a curve-hugging burgundy dress after welcoming son Noah on Sept. 27. Her secret? Regular sweat session with trainer Harley Pasternak.
Copyright © 2013 Time Inc. All rights reserved. Reproduction in whole or in part without permission is prohibited.
In partnership with AOL