Former Bishop of Broome Christopher Alan Saunders is fighting a slew of sexual assault charges at trial in the West Australian District Court.
The retired clergyman, 76, who was known as Brother B to his alleged victims, is accused of sexually abusing multiple young Aboriginal men in the Kimberley from 2008 to 2017.
An Aboriginal man, who cannot be named for legal reasons, told the court on Thursday that he went to the bishop's Broome home with a group of other young men for a barbecue when he was a teenager.
"He told all of us to take off our shirts, and we took off our shirts," he said.
"There were things happening at the house at that time.
"The bishop sexually interacted with and groomed us."
The man, then 18, said Saunders gave the youths cans of Jack Daniel's whiskey and Coca-Cola, and that he was also drinking alcohol.
The bishop allegedly invited the teen to sit next to him and then placed his right foot on his crotch area.
"I was in the area where all the boys sit and have drinks," he said.
"His foot was close to my private parts and in between my thighs.
"He said: 'You're alright, brother ... kick back and enjoy the drinks'."
The man, now 30, alleged that Saunders rubbed his foot against his penis through his clothing for about two and a half minutes.
"(Then) I got up and said I had to use the toilet," he said.
"That was my excuse to get out and get away from him; I wasn't going to let him do that again.
"When I came back, I did not sit in the same spot.
"I stayed well away from harm's way."
Saunders' lawyer, Tony Hager, drilled into the man's criminal record, which included convictions for assault and drug possession.
He also asked questions about his use of drugs and alcohol and whether it had impacted his memory.
"I wasn't an alcoholic; I had a few drinks, and that's it," the man said.
He also denied smoking marijuana or drinking alcohol before going to the bishop's house.
Prosecutors have alleged Saunders put on alcohol-fuelled parties using church funds to get access to Aboriginal boys and men so he could sexually assault them.
The trial continues.