One of Craig McLachlan's castmates has told a Melbourne court the Rocky Horror Show was a highly sexualised environment both on and off the stage.
McLachlan has been charged with 16 counts of indecent assault, attempted indecent assault and common assault coinciding with productions of the stage show.
The 54-year-old is contesting the charges in Melbourne Magistrates Court.
Kristian Lavercombe, who has played Frank-n-Furter's loyal handyman Riff Raff in more than 1600 performances of the Rocky Horror Show, said the small cast were very affectionate with one another.
"It was part of the show for our characters to be sexual with one another," Lavercombe told the court via video link from South Africa.
He said he had seen two of McLachlan's alleged victims sit on the Gold Logie winner's lap.
One of the women "regularly" sat on McLachlan's lap between scenes, while Lavercombe said he heard the other make a crude joke as she got off his lap during a promotional photo shoot.
Lavercombe also told the court he had seen another alleged victim "goosing" - pinching - McLachlan's bottom.
"I would say her sense of humour was fairly close to the mark and would be quite sexualised," he said of the complainant.
Lavercombe said McLachlan regularly professed his love for members of the cast and crew in an effort to "make everybody laugh and feel comfortable".
"Craig possibly told me that he loved me every single day," he said.
"I heard him tell nearly everybody at some point."
His evidence came after another witness recounted a threat made by McLachlan to one of his alleged victims.
The victim alleges the actor put his tongue in her mouth during an unscripted kiss and then threatened her career when she confronted him about it.
"He backed her against a wall and said, 'don't you talk to me like that, I will end you,'" a friend of the woman told the court.
"It absolutely threw her. No one had ever spoken to her with such intensity in such a negative way."
The friend said the woman also told her about another incident in which McLachlan allegedly pushed his erect penis against her.
The alleged victim told her friend she was relieved when the production ended.
"She told me that she would love to do the show but she did not want to work with Craig," the friend said.
"She was done spending her days ... thinking she would potentially be violated at any moment."
Defence barrister Stuart Littlemore QC asked the friend if the complainant was so concerned with working with the star then why did she audition to work alongside him in later productions.
The friend said it was a difficult industry to get work.
The four women involved in the case cannot be named and gave their evidence in a closed court.
McLachlan became a household name for roles in the Australian soap operas Neighbours, and Home and Away.
The actor launched defamation proceedings against Fairfax Media, the ABC and a former co-star in 2018, but that case has been delayed until after the criminal charges are dealt with.
The contested hearing before magistrate Belinda Wallington continues.