Christina Ricci is set to play the lesbian lover of a serial killer in a new film.

The 22-year-old actress will appear naked with co-star Charlize Theron in Monster.

It is based on the story of prostitute Aileen Wournos, who lured seven men to their deaths on Florida highways in 1989 and 1990.

Dubbed "The Damsel of Death", she posed as a stranded motorist and hinted at sexual favours to get into victims' cars - then shot and robbed them.

Christina told The Sun: "I'm pretty f****** naked. My agent persuaded me to go for it. She keeps saying "You have beautiful breasts"."

Wournos was executed at 46 last year after a decade on Death Row.

Source: Press Release