Ease of access to content - including illegal and extremely violent material - is increasing the risk of accidental exposure by children, sexual violence prevention expert Maree Crabbe says.

The Reality & Risk project director warns porn is an issue parents and schools can not afford to ignore.

"Porn is increasingly playing a role in how young people learn about, think about and experience sexuality," she said.

"Many adults are unaware of how pervasive pornography has become, the nature of the material young people see or how it is affecting young people's sexual understandings and experiences.

"Young people need us to help them navigate this space safely."

Ms Crabbe said pornography conveyed complex messages about gender, power, sexual health, bodies, consent, performance, sexuality and sex.

"Young people often do not have the critical frameworks required to deconstruct and understand these messages," she added.

Statistics show 88 per cent of the most watched porn contains scenes of physical aggression.

In 94 per cent of cases, the aggressive acts were directed at female performers.

Additionally, Ms Crabbe revealed, 71 per cent of young people were not looking for pornography the first time they saw it.