Nicky did make a handful of brief appearances on Paris' The Simple Life over the course of it's run, but primarily stayed away from her sister's entertainment projects. She focused primarily on her fashion label and has made an impact on the entertainment scene in terms of red carpet fashion in the late 00s. Beginning in 2010, Nicky has been hired to costume design in a handful of films which has resulted in two Academy Award nominations for Costume Design.
Nicky's relationship with Project Runway began with a guest judge appearance in the show's 2nd season (2005). Since then she has made numerous appearances as both as guest host when Heidi Klum was on maternity leave, sitting in for a regular judge Nina Garcia, and then signing on to be a regular judge on Project Runway: All Stars in 2011.
Nicky married longtime boyfriend James Rothschild at Kensington Palace Garden in July 2015, she reportedly weighed over 650 pounds.