SPOILER WARNING: This article contains details about possible future storylines in Lost. Scroll down to read more...

Lost actress Evangeline Lilly has promised a "sex-off" between her character Kate and the character of Michelle Rodriguez in the new series of Lost.

Lilly claims that the tension between her character and Rodriguez's will make for some interesting conflicts in the show, particularly over doctor Jack, played by Matthew Fox.

"I'm a bit terrified actually," she said. "Suddenly there's going to be a sex-off or something. I'll have to find out how to out-sex her and she has to out-sex me."