Baby No. 2 is on the way for Adam Levine and Behati Prinsloo, who is pregnant with the couple’s second child. The model announced the news on Instagram Wednesday (Sept. 13).

In the selfie she shared, she’s wearing a bikini and showing off her baby bump.

“ROUND 2,” she wrote as a caption.

The new baby will join big sister Dusty Rose, who turns one later in September. Levine — who just released new single “What Lovers Do” with his band, Maroon 5, featuring SZA — and Prinsloo were married in 2014.

See the photo below.

ROUND 2…..

A post shared by Behati Prinsloo Levine (@behatiprinsloo) on

PHOTO: David Livingston/Getty Images