The main accuser in US actor and comedian Bill Cosby's trial gave testimony in court Tuesday, her first public retelling of the alleged 2004 sexual assault. 

44-year-old Andrea Constand said Cosby gave her three pills and wine before sexually assaulting her on his couch after she went to him for advice about a potential career switch and move to Canada.

Andrea Constand on Tuesday, June 6, 2017. /Deadline Photo

The then 30-year-old director of women's basketball at Temple University - where Cosby served on the board of trustees - said she had asked Cosby if the pills were herbal, to which he answered yes.

Around 30 minutes later, Constand said she had trouble talking and difficulty moving and was suffering double vision. After losing consciousness, she woke up to find Cosby touching her intimately. 

"I wanted it to stop," she told the court.

Bill Cosby walks to the courtroom during a break on the second day of his sexual assault trial at the Montgomery County Courthouse in Norristown, Pennsylvania, US, June 6, 2017. /Reuters Photo

In one of the US' biggest celebrity trials in years, Cosby faces three counts of aggravated indecent assault, which each carry a maximum sentence of 10 years in jail and a 25,000 US dollar fine. 

Around 60 women have publicly accused the Emmy award-winning star of being a serial sexual predator, allegations which ended his career and have left him isolated by friends and celebrities.