Bangkok: A mother has been arrested in the Philippines after she allegedly spent five years sending sexually explicit images of her two daughters to an Australian paedophile in the country's booming cybersex industry.

The youngest daughter was only 10 when Stephen James Sheriff, 46, of Cairns, started sending money to her mother in Mandaue City on the Philippine island of Cebu.

Nine months after Sheriff was arrested by the Queensland Police's ARGOS Child Abuse and Sexual Crime Group, Philippine police burst into the mother's house on May 27 and allegedly caught her live-streaming her now 15-year-old daughter performing sex acts for another paedophile.

The girl told Philippine journalists she had been praying for the abuse to stop.