Detectives from the Cairns Child Protection and Investigation Unit have charged two people with historical child sex offences, following extensive investigations as part of Operation Whiskey Soundview.
It will be alleged between 2011 and 2016, a 53-year-old man and a 57-year-old woman committed offences against two young girls known to them.
The victim reported the alleged offending to police in May this year.
Detectives charged the 53-year-old man in Townsville on July 7.
On July 9, detectives travelled to Mackay and executed a search warrant at a Bucasia property, before taking the 57-year-old woman into custody.
The 57-year-old woman has been charged with four counts of involving children in making child exploitation material, three counts each of rape (domestic violence offence), taking child for immoral purposes, and one count each of indecent treatment of a child under 16 (expose), indecent treatment of child under 16 (procure to commit), strangulation, common assault, and deprivation of liberty.
She is due to appear in the Mackay Magistrates Court on 27 July.
A 53-year man was charged with 46 counts of rape (domestic violence offence), seven counts of take child for immoral purposes, three counts of involving children in making child exploitation material, two counts of deprivation of liberty, and one count each of possess child exploitation material and stalking.
He was remanded in custody is due to appear in the Rockhampton Court on 24 July.
Officer in charge of the Cairns Child Protection and Investigation Unit, Detective Senior Sergeant Mick Gooiker said the Queensland Police service is committed to protecting vulnerable young people.
"We will continue to investigate all reports of offences against children, and hold offenders to account," Detective Senior Sergeant Mick Gooiker said.
"These people have shown incredible bravery in coming forward and speaking to police, and we encourage anyone who has any knowledge of this type of offending or has been a victim of a sexual offence to come forward so we can assist them."
If you have information for police, contact Policelink by providing information using the online suspicious activity form 24hrs per day at www.police.qld.gov.au/reporting.
Report crime information anonymously via Crime Stoppers. Call 1800 333 000 or report online at www.crimestoppersqld.com.au.
If you've experienced sexual assault, it is not your fault and you are not alone. There are multiple ways to report what has happened to you depending on your situation.
If there's an immediate danger, call Triple Zero (000). You can also report online via: https://forms.police.qld.gov.au/launch/SexualAssault, over the phone or face to face at a police station.
There are also Alternative Reporting Options available depending on your situation.
For confidential information, counselling and support, call the State-wide Sexual Assault Helpline on 1800 010 120 or 1800 RESPECT for 24-hour help.