South African beauty Charlize Theron is considering starting a family of her own after playing a struggling single mother in new movie North Country.

The Oscar-winning Monster actress has been dating Irish heart-throb STUART TOWNSEND since 2001.

She recently insisted they will never marry - but hints kids could be on the agenda.

Theron, 30, says, "My biggest fear in this film was my relationship with the children because I don't have any kids of my own.

"It really made me think..."