Jessica was once in romantic love affairs with Nicolas Potts. Nicolas Potts is one of the main members of Tamarama band. Though they were together for a long time, they didn't get married and they called off their love life in 2010.
In 2011, Jessica was seen dating Stavros Niarchos III. Stavros Niarchos III is a Greek billionaire and they have been in this relationship from that time on.
It is said that when she was on her way to the local shopping centre, she was discovered by the modeling agent. But later news about how she entered into the modeling also became public. In 2000, when Dolly Magazine hosted a modeling show in her home town, her aunt persuaded her to enter into this show and she also won this competition at the end. Though she has gap-tooth smile, she moved to New York City and now she is one of the famous model in the world. At the end of 2008, she appeared in the Swimsuit Issue photos in Mexico and then she got her breakthrough in her career after she appeared in the 2009 Sports Illustrated Swimsuit Issue. The actual figure about her salary is unknown but her net worth is said to be around $8 Million.