Sam Worthington and Lara Bingle have welcomed their first child together, Us Weekly can confirm Credit: Jason LaVeris/FilmMagic

They're parents! Sam Worthington and his wife Lara Bingle have welcomed their first child, Us Weekly can confirm.

"The baby was coming any day for the last week. Their families came in and they've been staying at his place…" a source tells Us. "Sam couldn't be happier."

Us broke news in September that the Avatar actor, 38, and Bingle, 27, were expecting a baby together. The couple have kept mum about parenthood, but Bingle has shown off her growing baby bump on several occasions while photographed in both L.A. and NYC.

Worthington and Bingle began dating in September 2013. "They're inseparable," a source previously told Us of the couple. "They've been making steps in their relationship but he's an extremely private guy."