Jana is Vivian MN. @ paulmarkham :
http://www.paulmarkham.com/content.php?modelId=451
Nika is Kate V. @ 1by-day :
http://www.1by-day.com/modeldetails.php?703
matiasal:In sapphic she appears with nika and michelle, but i think i saw her in fresh auditions or another site, i dont remember