She originally worked as a make-up artist, but was herself inspired to pursue a more risky route and decided to try her hand in the adult industry at age 23.
Kassin's first job was selling ice cream at an Italian restaurant at age fifteen.
Her first audition won her the role of Kirilenko in David Cronenberg's Eastern Promises, starring Viggo Mortensen and Vincent Cassel.
Actress Like many born under communist rule, Petra, a Czechoslovakian child with Slovak-Hungarian roots, grew up in a time of change, so she is used to pushing the boundaries, both professional and personal.