text: Three new women have accused Bill Cosby of sexual assault, bringing his total number of alleged victims to 38. Janice Baker Kinney, Marcella Tate, and Autumn Burns held a press conference on Thursday morning in Los Angeles, California, to announce their claims. Their attorney Gloria Allred, who represents most of Cosby's accusers, said the event was timed deliberately to damage sales for the comedian's upcoming shows on his nationwide tour. Scroll down for video . Latest accusers: Janice Baker Kinney (far left), Marcella Tate, (second right) and Autumn Burns (far right) reveal they also claim to have been abused by Bill Cosby. They appeared with their attorney Gloria Allred . Bill Cosby has yet to comment on the new allegations, which have prompted him to cancel a number of upcoming stops on his comedy tour. Allred said the meeting was scheduled to damage Cosby's ticket sales . Kinney said she was 24 in May 1982 when she and a friend met Cosby at the casino where she worked in Reno, Nevada. She said the three of them went back to Cosby's apartment, where he gave her some pills. Hours later, she claims, she woke up naked in bed with the comedian - and he told her to keep their encounter to themselves. 'I was mortified at what had happened,' Kinney said. 'All this time, and for many, many years, I felt that this was my fault.' Burns said she was a 20-year-old Las Vegas casino worker in 1970 when she met Cosby. Autumn Burns (left) said she was 20 in 1970 when she met Cosby at the casino where she worked in Las Vegas. She says he gave her alcohol then forced her into sex acts. Janice Kinney (right) said she met Cosby at the age of 24 working in a Reno casino. She says he fed her drugs and she woke up naked in bed with him . Marcella Tate (center) said she met Cosby in Chicago in 1975, when she was a 27-year-old model. She said he asked her to take him to the Playboy Mansion, where he offered her a drink that left her feeling drugged . Speaking out: Burns (foreground) said she felt 'out of control' after drinking the alcohol Cosby gave her . She said she was invited to his suite where he made her a drink, leaving her feeling 'woozy and not in control.' She said the comedian then forced her into sex acts. Tate said she met Cosby in Chicago in 1975, when she was a 27-year-old model. She said he asked her to take him to the Playboy Mansion, where he offered her a drink that left her feeling drugged. The allegations have led to cancellations of a number of stops on his live Far From Finished comedy tour. Emotional: Kinney wept alongside her attorney Allred as she gave a detailed account of her allegations . Embrace: Allred, who represents many of Cosby's 38 accusers, hugged the women after they spoke . Growing case: The three women, who have not spoken out before, are the latest in almost 40 women to do so . Allred said her Thursday conference was held purposely held before Cosby's May 2 Atlanta show. 'I hope that the public will not buy tickets to his performance and that there will be many empty seats by the end of his performance,' Allred said. Cosby, best known for his America's Dad character Dr. Cliff Huxtable on the top-rated Cosby Show, has never been charged over any of the allegations. He settled a 2005 civil lawsuit alleging sexual misconduct. Representatives for Cosby did not respond to requests for comment on Thursday. Cosby's attorney Marty Singer has previously dismissed similar allegations made by other women as 'discredited' and 'defamatory.'
target: Two former casino workers and a former model spoke out for the first time .
  They were aged 20, 24, and 27 at the time of the alleged assaults .
  All claim Cosby, 77, gave them either drugs or alcohol .
  One described 'waking up in bed naked next to him after being drugged'
  Gloria Allred, lawyer for many of the 38 alleged victims, represents them .
  She said she planned the press conference to damage Cosby's ticket sales .