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Gisele Bundchen hit the runway over the weekend for the first time since welcoming son Benjamin six months ago.

The supermodel showed off her slim post-baby bod in a bra top and sheer shirt for fashion line Colcci.

"I was very nervous," Bundchen, 29, told Brazilian newspaper Estado de Sao Paulo. "But I am very happy. Everything went right."

In April, Bundchen boasted to Vogue that it wasn't hard to shed the 30 pounds she gained during her pregnancy.

"I did kung fu up until two weeks before Benjamin was born, and yoga three days a week," she said, adding that she was "mindful" of what she ate.

But just because she didn't overindulge, that doesn't mean Bundchen -- who gave birth in the bathtub of the townhouse she shares with husband Tom Brady in Boston -- didn't enjoy being pregnant.

"It was the most amazing experience of my life, feeling him come through my body," she said of Benjamin's birth. "And once he was born, I never felt so empowered as looking at him and thinking, Oh, my God, we did it together!"