Molly Sims and Husband Scott Stuber Welcome Baby Girl!

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Actress Molly Sims and her husband, film producer Scott Stuber, welcomed their second child on Thursday.

Sims announced the news on Instagram, posting an incredibly sweet photo of their baby girl Scarlet May.

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Sims captioned the photo, "We welcome Scarlett May Stuber into our family. Our hearts are bigger with you here."

The 41-year-old mother of two revealed that she was pregnant in September in a post on her personal website. In January, she wrote another post to share that she was having a daughter.

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"We couldn't be more excited," Sims wrote in a blog post. "I can't wait to meet our baby girl and I just know that Brooks is going to be the very best big brother ever. Two kids under three … here we GO!"

She also posted the news on Instagram with an adorable pic filled with pink balloons and the simple caption, "IT'S A GIRL!"

Sims and Stuber, who tied the knot in September 2011, welcomed their first child, son Brooks, in June 2012.

VIDEO: Hollywood Moms React to Super-Fit Pregnant Model Sarah Stage

Recently, Sims, Vanessa Lachey, Rachel Zoe and Kerry Washington spoke with ET, where the moms and mothers-to-be shared their thoughts on pregnant supermodel Sarah Stage, who is barely showing despite being nearly nine months pregnant.

Hear what the actresses had to say in the video below.