Three family members who have accused a man of sexual assault have denied putting their "heads together" to make "false allegations," a jury has heard.
Tyson Bonfield, 46, is facing an ACT Supreme Court jury trial after pleading not guilty to 43 charges relating to the alleged sexual and indecent assault of 11 people between the 2000s and late 2010s.
He is accused of sexually assaulting four female members of his family when they were children or teenagers. The seven other alleged victims were family friends.
Bonfield has been named with the consent of the family members who have accused him of sexual assault.
On Wednesday, September 9, defence barrister James Sabharwal cross-examined two of the family members who have accused his client of sexual abuse.
Both alleged victims responded "no" and "we did not" when asked if they had discussed making "false allegations" against Bonfield.
The day before, Mr Sabharwal asked another alleged victim if she "concocted" the claims with others. She denied having done so.
Last week, ACT Office of the Director of Public Prosecutions deputy director Trent Hickey alleged Bonfield repeatedly engaged in non-consensual sexual acts when family members were asleep, including sexually assaulting them and masturbating nearby.
He is also accused of repeatedly forcing, or attempting to force, people to perform oral sex on him.
One alleged victim was 11 when Bonfield is said to have sexually assaulted her one night after school camp.
Mr Hickey told jurors the evidence would show that Bonfield routinely walked around his home naked when people were visiting or during parties.
Mr Hickey argued this desensitised those around him and "normalised an environment in which sexual conduct occurred".
The prosecutor said people would say "that's just Ty being Ty".
The accused man also allegedly hid cameras in bedrooms and put vibrators in the beds of children.
The court heard he would ask family members to tickle or massage his back and then allegedly stretch his arm back to touch their genitals.
Other alleged victims have accused Bonfield of groping them and a family friend claimed he had tried to Taser her genital area at a party.
The trial before Chief Justice Lucy McCallum continues.
