Jana Defi from Praha, Czechoslovakia, posed for 172 covers, 93 photosets, and 79 videos, before retiring in 2010. Boobpedia: As an adult model she was also commonly known as Maria Swan or Princessa. Jana Defi was first published on the web (as "Maria Swan") by the Polish erotic website Polish Busty in May 2005. Defi began nude modeling for the website in videos and pictorials. Some of her most stunning photosets and videos have appeared on the high resolution glamour/artistic site MC Nudes, where she is identified as "Princessa" and models nude. Because of Jana's enormous tits and slender figure, some have expressed suspicions that she's had breast implants (which would disqualify her from becoming a Page 3 model). Pin Up Glam, where Jana is a model, responded to these accusations with a video featuring a Los Angeles plastic surgeon and a radiologist. The video contained not only their testimony but a sonogram exam of her breast tissue. According to the video, Jana's breasts were 100% natural. With the merge of Pin Up Glam and PinupFiles, however, the full video appears to have disappeared. Boobpedia has archived part of the movie which can be seen in the free movies section. Defi achieved mainstream popularity in the UK, appearing with top UK glamour model Michelle Marsh on the front cover of the popular lads' mag Loaded in January 2007. She appeared on the cover of Loaded again in the March 2007 issue and was featured in the magazine's bonus 3D DVD. In the May 2007 issue she features as the magazine's top centrefold model. She has also appeared topless in the UK publications Zoo, Daily Sport, and Nuts.