The law graduate was born in Cape Town in 1983 and grew up in Port Elizabeth. Her father, Barry Steenkamp, is a high profile horse trainer within the country.
The model became the face of Avon cosmetics in South Africa after moving to Johannesburg, having previously fronted campaigns for FHM, Toyota, Clover and Italian brand Zui.
Her Facebook account said she had a "passion for cars and cooking."
More top news
A woman who has battled anorexia for more than a decade has released a heartbreaking video pleading for help in fighting the disease.
A man from London who was the subject of cruel online taunts has had the last laugh when a group of celebrities threw a party for him in LA.
The Sydney gunman who took 18 people hostage in central Sydney last year was a self-obsessed fantasist, an inquest has heard.