Gisele Bundchen's pregnant belly seems to have popped overnight!

In Rio de Janiero, Brazil on Saturday, the catwalker worked her growing baby bump as she arrived at the city's Santos Dumonth Airport. Rocking skin-tight black skinny jeans, a soft grey T-shirt and a black jacket, the Native Brazilian let her natural beauty shine through her nearly makeup-free face.

PHOTOS: Supermodel moms

Just like Beyonce and Jessica Simpson, who wore heels through most of their pregnancy terms, the 5-foot-11 stunner reached new heights in high wedge booties.

PHOTOS: Pregnant in heels

Us Weekly first broke the news of the supermodel's pregnancy earlier this month when a source told Us that the Brazilian beauty was three months along already. "They are really happy!" the source says.

PHOTOS: Tom and Gisele's most romantic moments

This will be the second child for Bundchen, 31, and her husband of three years, New England Patriots quarterback Tom Brady. The pair have two-year-old son, Benjamin. (Brady also has a 4-year-old son, Jack, with ex-girlfriend Bridget Moynahan.)

This article originally appeared on PIC: Pregnant Gisele Bundchen's Baby Bump Is Getting Bigger!