Adriana Lima on April 25, 2012 in New York City. Credit: Neilson Barnard/WireImage

Swimsuit model Adriana Lima isn't shy about showing off her changing shape.

The 30-year-old Brazilian beauty attended the opening of the IWC Flagship store in NYC Wednesday, flaunting her baby bump--and her long, runway-worthy stems--in an itty-bitty LBD.

Lima announced on Twitter last month that she and her basketball player hubby, Marko Jaric, are expecting their second child together (the pair are already parents to Valentina, 2).

"Big news everyone! Marko and I are so happy to share some wonderful news with all of you! I'm pregnant," the Victoria's Secret stunner wrote. "My favorite job in the world is being a mom! My family could not be more happy!"

Earlier this year, Lima opened up to Us Weekly about soon-to-be-big-sister Valentina's latest milestones.

"She knows already how to count to five," Lima gushed. "And she knows colors, like red, pink, white--it's so cute! Everyday it's something new."