Robert Phillip Dick told investigators the woman gave him a massage, arousing him, but he abandoned his desires because ''I thought it was the wrong thing to do''.

The 58-year-old is on trial in the ACT Supreme Court, having pleaded not guilty to twice having sex with her without consent and one charge of committing an act of indecency.

In mid-2007, when the alleged assaults occurred, the alleged victim had recently arrived in Australia to work as a prostitute.

Dick, also known as ''Bobo'' or ''Uncle'', was a friend of the woman who arranged for the complainant to travel from Thailand.

In a recorded interview with police, Dick said he collected her from the Canberra Airport and took her back to an apartment complex in Braddon. He said she willingly came to Australia to work in the sex business, and he believed she paid her own way.

But the complainant had previously told the jury her flight was paid for and a portion of her earnings taken to cover the debt incurred.

She said her passport was taken from her, but Dick told police he believed she kept it, and described watching her use it to do banking.

The defendant denied any sexual interaction with the woman except for one occasion when she gave him a massage, but he said he stopped before having sex with her.

''I was aroused, she was willing … and I thought it was the wrong thing to do,'' he said.

''I thought it was morally wrong, taking advantage of someone who thought that she had no other choice.''

He admitted using a sex toy on the woman during the incident but maintained that it was consensual.

The trial before Justice Richard Refshauge continues on Monday.