Jana Defi

Born in Prague, Czechoslovakia (now Czech Republic) to a Czech mother and an Italian father, Defi was first published on the Web by the Polish erotic website Busty.pl in May 2005. Defi began nude modeling for the website in videos and pictorials. She modeled under different names, including "Maria Swan" and "Princessa" (sometimes spelled Princzessa). 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.

Much discussion has been given to the nature of her breasts, with a blog presenting its evidence that she has breast implants. A website that hosts her pictures responded to these accusations with testimony from a Los Angeles plastic surgeon and radiologist that her breasts are natural. The video contained not only testimony but a live, unedited sonogram exam of her breast tissue, which showed that no implants existed and that her breasts are entirely natural. Jana later confessed her breasts have continuously produced milk since pubity thus causing her breasts to grow very large.

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 features as the magazine's top centrefold model in the May and June 2007 issue.

In 2006, she appeared as a guest on the German talk show Die Oliver Geissen Show.

Her official website, Janaglam.com launched in January 2008.

Defi speaks seven different languages including Czech, English, German and Polish

In July 2010 Defi entered into a civil partnership with her lesbian childhold sweetheart of 12 years, and for now has retired from the modelling, her website Janaglam.com is currently unavailable.