Prince George Is All Smiles in 4th Birthday Portrait
The petite Jersey Shore star slimmed down in record time after giving birth to son Lorenzo in August 2012. Taking special care to stay in shape while pregnant -- opting to focus on back-strengthening moves and cardio -- Jionni LaValle's fiancee chose to breastfeed her son, which can burn up to 500 calories a day. "I love nursing my little man!" enthused the reality star.