Alessandra Ambrosio My Post Baby Body Is Belly Hot!

9/18/2012 7:30 AM PDT
Brazilian bombshell Alessandra Ambrosio proved she's back in supermodel shape by showing of her flat stomach in L.A. on Monday ... four months after giving birth to her second child on May 7th.

The 31-year-old Victoria's Secret Angel has a lot in common with 32-year-old new mom Jessica Simpson ... as Alessandra had her baby just six days after Jess, who gave birth on May 1st.

The gift of motherhood affects everyone differently.