Gisele Bundchen: Bike Ride with the Boys!

Gisele Bundchen rides her bike through the park with her son Benjamin and her step-son John on Saturday afternoon (September 15) in Boston, Mass.

The 32-year-old supermodel rode with Benjamin in a kiddie seat on her bike while John took the lead on his own bicycle.

PHOTOS: Check out the latest pics of Gisele Bundchen

Once at the park, Gisele sat on a bench while the boys played on the jungle gym.

The day before, Gisele showed off her growing baby bump while going out to lunch at Bar Pitti in New York City.

FYI: Gisele is using her Trek bike.