In 1996, to escape their crippling debts, at Franck's suggestion, the couple began working as a couple in pornographic films. In the film "L'Indécente aux enfer" (1997) she for the first time performed unsimulated sex scenes with other partners. The couple divorced shortly after. Following their divorce, Franck quit the pornographic film industry but Karen continued to appear in pornographic films both in Europe and the United States. Lancaume's debut in the United States was in "Private Gold 25 - When the Night Falls".