Pregnant Adriana Lima Bares Belly in Stunning Calendar Shoot

Model was first to pose with a full-on baby bump for the famous Pirelli Calendar

Adriana Lima is all the living proof we need that impending motherhood is sexy.

The Victoria's Secret Angel gave birth to daughter Sienna in September, but in July she became the first model to ever pose in the full bloom of pregnancy for Pirelli's annual calendar.

And that's not the only new route the Italian tire maker took for 2013.

Usually at least some of the Pirelli Calendar girls pose nude—but, this year, photographer Steve McCurry captured all of the beauties fully clothed.

Well, maybe not in snow suits, but relatively more covered up than usual.

Joining Lima in the lineup, which was revealed today in Rio de Janeiro, are Karlie Kloss, Petra Nemcova, Liya Kebede, Summer Rayne Oakes and Sonia Braga, Elisa Sednaoui, Isabeli Fontana, Hanaa Ben Abdesslem and Kyleigh Kuhn.