Models Moms: Giselle Bundchen & Heidi Klum’s Growing Baby Bumps

We’re used to seeing supermodels Gisele Bundchen and Heidi Klum gliding down catwalks around the world looking stick thin – but these days they are parading their growing baby bumps.

The fashion queens both sported stylish maternity wear as they ran errands in Boston and Los Angeles on Thursday.

See more photos of Heidi Klum's Recent Maternity Chic!

Bundchen, 29, stepped out on the East Coast wearing a full length summer dress to hide her growing baby-bump – the Brazilian is six months pregnant by her New England Patriots quarter-back football star husband Tom Brady.

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Despite her pregnancy, Bundchen recently started taking lessons to learn how to fly a helicopter and these will continue up until November according to her instructor.

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Meanwhile, Klum, who is expected to give birth within the next few weeks, was spotted taking her brood to karate lessons in Los Angeles.

The Project Runway host already has three children Leni, 5 (from her relationship with Flavio Briatore), Henry, 3, and Johan, 2, with her singer husband Seal.

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For her day out, she sported a baggy maternity sweat-shirt, black leggings and metallic baseball boots.

She said recently: “It’s bizarre. Just as it’s a miracle that you can grow a human being in your belly, it’s a miracle that your body goes back to normal again.”

And who would place a bet against these two stunning women hitting the catwalks once again after they give birth.