The stork has certainly been busy this week! Victoria's Secret Angel Adriana Lima and hubby Marko Jaric welcomed their second daughter into the world on Wednesday in NYC.

OK! GALLERY: ADRIANA LIMA, ERIN HEATHERTON AND CANDACE SWANEPOEL PROMOTE THE "VERY SEXY" LINE

She Tweeted, "Marko and I are overjoyed to welcome Sienna into our family, and Valentina is looking forward to becoming a big sister."

Sienna was born in the early afternoon and weighed seven pounds. It sounds like both Adriana and her hubby didn't know whether or not 2-year-old big sis Valentina was going to have a little brother or sister.

OK! GALLERY: ADRIANA LIMA LOOKS FLAWLESS IN SOUTH BEACH

On August 30 she Tweeted, "For the rumors about the gender of my and Markos baby I would like to make clear that both me and my husband don't know."

Awww, looks like of course now they know! Congrats!

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