Legal Aid lawyers in New South Wales are dealing with teenagers in trouble over "sexting" on a weekly basis, the state's head of Legal Aid for children says.

Sexting — the practice of sending explicit content, including photos, using mobile phones — is one of the topics being examined by a NSW parliamentary committee, which is investigating the sexualisation of young people.

The state's peak body for youth services and organisations, Youth Action, yesterday called for a change to laws that treat consensual sexting as the distribution child pornography.

Children's Legal Service solicitor in charge Debra Maher said she agreed, because teenagers were regularly being charged.

"There wouldn't be a week that goes past where we don't either represent a child in court charged with a sexting offence or take a hotline call on the Legal Aid hotline for a child who's at a police station being investigated for a sexting type offence, so they're very regular," she said.

"They're potentially going to be on a sex offender register for the rest of their life."

The inquiry's public hearings continue today.