Liz Hurley has spoken about her plans to have two more children.

The actress has made a promise to four-year-old son Damian that he can have a brother and a sister - who will be named after his favourite Scooby Doo characters Fred and Daphne.

"Damian is obsessed with me having another child," Liz told Marie Claire magazine. "He wants a girl named Daphne and a boy called Fred. He talks about it every day, saying 'Mummy, when you put Daphne in the school next door to mine, will Fred grow into my clothes?'"

Hurley will start trying for her next child after she ties the knot with Arun Nayer in March next year.

She explained: "We'll make an effort after the wedding. Not before. I'm too vain."