Kassin began nude modeling in Germany when she was 20 years old. She shot her first porn scene in Germany in May 2002. She contacted German adult Actress Dru Berrymore, who invited her to travel to the United States. In March 2003, Kassin shot her first American sex scene in Straight to the A 4. In her first month working in the United States, she shot 25 scenes. In 2015, she appeared in the mainstream film Tangerine.
Kassin permanently moved to the Los Angeles area in late 2004 and married fellow American performer Sledge Hammer in January 2005. They divorced in October 2006.
