Gisele Bundchen and Tom Brady's family is growing, as is the pregnant supermodel's ever-expanding belly.

Bundchen, 32, is expecting her second child with her husband Tom Brady, the 35-year-old quarterback for the New England Patriots. The model showed off her baby bump during a walk in the park this week with the couple's first child, 2-year-old son Benjamin Brady.

CLICK HERE to see photos of a pregnant Bundchen's day at the park.

Bundchen and Benjamin joined some friends at a park along the Charles River in Boston, Mass. Photos show mother and son hugging, kissing and having fun as they enjoy the outdoors.

The former Victoria's Secret model was dressed for a casual day of comfort in a T-shirt bearing the face of a white leopard, sunglasses and a black headband.

Brady married Bundchen in February 2009, and the couple wasted no time in growing their family. Their son Benjamin was born only 10 months after the wedding. Bundchen revealed her second pregnancy earlier this year by baring her belly in a tiny bikini on the beach.

There's no doubt the couple will have plenty cash to spoil the new baby. Bundchen is the world's highest-paid model; she raked in $45 million from modeling, endorsement deals, licensing and real estate between May 2011 and May 2012.

Brady isn't doing badly for himself, either. He signed a four-year, $72 million contract extension with the Patriots in 2010. 

Tags: Victoria's Secret Victoria Beckham Tom Brady