Adam Levine and Behati Prinsloo expecting baby No. 3  

Prinsloo was seen stepping in out showing her growing baby bump while out to lunch with Levine in Santa Barbara on Saturday.

They married in 2014. They have daughters Dusty Rose, 5, and Geo Grace, 4

but also needed a moment to catch her breath after the roller coaster of raising two under two.

"We always knew we wanted another. So I guess for me those two years,

when I had two kids under the age of two, I was like, 'Don't even think about it!

But I also want five kids, but don't even think about it," Prinsloo said of raising her family

after initially pumping the brakes after Baby No. 2, "You know that, 'Never Never say never.'

We want a big family, who knows, we are leaving it to fate and just what happens. Whatever happens, will happen. So there is no limit to it."