The infant joins Theron's first youngster, Jackson, who was embraced in South Africa in 2012, as per superstar news site TMZ.
The 39-year-old American performing artist allegedly embraced US-conceived August in July, TMZ said.
Theron and performing artist Sean Pean as of late canceled their engagement, taking after reports that Penn wanted to formally embrace Jackson.
The discriminatingly acclaimed performing artist won a Best On-screen character Oscar for her part as a whore cum-serial executioner in the horrifying 2003 film "Creature."
She is additionally known for her parts in "The Contentious third party," "The Fruit juice House Guidelines" and "Distraught Max: Fierceness Street." (AFP)