Jana Defi is a Czech glamour model. Born in Prague, Czechoslovakia (now Czech Republic), from Italian father and czech mother, Jana Defi was first published on the Web by the Polish website Busty.pl in May 2005. Defi began modeling for the website in videos and pictorials. She modeled under different names, including "Maria Swan" and "Princessa. Defi is also a glamour, lingerie, topless and swimsuit model. Today, Defi is one of the top Czech models and represented by the German agency, Markuslensch. Defi has achieved mainstream popularity in the United Kingdom, appearing with top UK glamour model Michelle Marsh on the front cover of the lads' mag Loaded in January 2007. She appeared on the cover again in the March 2007 issue and featured in the magazine's free 3D DVD, photographed with Lucy Pinder. She was featured as the magazine's top centerfold model in the May and June 2007 issue.