Prime minster Scott Morrison will meet with Chanel Contos to discuss reforms to sex education in schools, after the petition Contos began prompted hundreds of testimonies from schoolgirls about sexual assault.

Contos says sex education is taught too late, with 50% of children already sexually active by the time it is taught in year ten.

The Morrison government has allocated four point seven million dollars over two years to strengthen criminal justice responses to sexual assault, but Contos hopes there can be a focus on prevention as well as cure.