PICS: Amber Heard bonds with Elon Musk and his kids

Cape Town – Amber Heard has taken another step in her relationship with Elon Musk on social media - sharing her life with his kids.

The South African-born billionaire has six sons – Nevada, who died when he was 10 weeks old, twins Xavier and Griffin and triplets Damien, Kai, Saxon - with his ex-wife Justine.

Amber and Elon made their relationship Instagram official in April and now the Aquaman actress has made her fun relationship with his children official too.

The 31-year-old shared a series of snaps fooling around and having fun with Elon and the boys at the Sydney Opera House in Australia on Instagram on Tuesday.

SCROLL THROUGH THE PICS HERE:

Elon also took to Instargam to share pics and a video of their day out.

SEE THE PICS AND VIDEO HERE:

Amber is currently filming Aquaman in Australia.