South Sudanese’s most successful international runway models, Ajak Deng is banging some old rich kawaja.

A photo which leaked online shows her kissing an old man passionately on the street of New York.

Sources in New York have seen her with the unnamed old kawaja dude on numerous occasions kissing in clubs and getting all nasty and staff.

28-year-old controversial Ajak quit modelling a year ago citing racism in the industry against black models.

Deng, who over the past has posed nude for editorials, has modelled for a number of high-profile designers including Dior, Louis Vuitton, Valentino, Marc Jacobs, Chloe and Jean Paul Gaultier, and starred in campaigns for Topshop, Barneys, MAC and Levis.