Using lawyer notes from that workers' compensation deposition in 1996, he argued that her timeline had changed from that deposition to her testimony on Monday. She said she took the pill because she "felt extremely intimidated".
McMonagle said Johnson mixed up the years and other details of her encounters with Cosby, and he grilled her about why she never said anything when she left William Morris. "The next morning I made her breakfast", McMonagle said, recounting an interview Cosby gave to authorities.
Johnson tearfully explained how she was too "intimidated" to simply tell him no; instead, she tried to fake swallow the pill, so she could spit it out in the restroom, but that Cosby made her prove her mouth was empty, forcing her to swallow it for real. She was an assistant to his agent, Feden said.
The actress said that she will "accept whatever verdict" the jury hands down.
Constand will take the stand this week to tell her story in public for the first time.
Mr McMonagle, in response, attempted to cast doubt on Ms Constand's version of events. She said they did the scene six times, with Johnson refusing the kiss every time.
Mentioning the huge success of The Cosby Show and its creator and how she related to the fictional Huxtables at the show's center, Johnson testified she "had the utmost respect for [Cosby] and the highest regard" when it came to the actor.
Feden says there is no better window into Cosby's motives and methods than his own words.
"I loved Cosby", the Chestnut Hill woman said as she walked to visit her daughter in Norristown.
Constand, her mother and a forensic toxicologist will also testify at the trial. If he's convicted, he faces up to 10 years in prison on each count and up to $25,000 in fines. "I was afraid." When asked by the district attorney if she consented to this alleged sexual act, Johnson responded, "No, I didn't"; asked if she would have consented, she said, "No, I couldn't".
She said the iconic entertainer "used his power and his fame" to nurture a relationship as a mentor and friend to former Temple University basketball manager Andrea Constand - only to violate that trust by assaulting her. It is the only criminal case to emerge from the dozens of sexual assault allegations lodged against the actor.
Cosby's attorneys also broached the subject of race with regard to jury selection. The trial is expected to last at least two weeks.
Certain to rattle Cosby is the presence of lawyer Gloria Allred, who represents 33 of his accusers. In 2015, the Cosby Show actress spoke out in defense of her TV dad, lauding him for his character and accomplishments - as did some of her other former co-stars, including Phylicia Rashad, Malcolm-Jamal Warner and Raven Symone.
Pulliam played Cosby's youngest daughter, Rudy Huxtable, on "The Cosby Show".
Cosby smiled but said nothing when someone asked how he was feeling.
More than 50 women have accused Cosby of sexual assault, but Constand's case is the only one recent enough for criminal prosecution. Cosby also offered to pay for Constand's education, which Feden painted as a concession of guilt. But scores of photographers will be lined up outside the courthouse.
According to Donna Motsinger, one of the original "Jane Does" who came forward in Constand's 2005 civil suit and has since befriended Constand, told PEOPLE on Thursday that Constand was "ready, prepared" to testify. Cosby has denied these allegations. She described going to Cosby's house at his invitation not long before the alleged assault.
Cosby said he got seven prescriptions for qualuudes, a sedative that is now banned, from a doctor in the 1970s. She will tell her story in public for the first time when she testifies.
It is being seen as the biggest United States celebrity trial since former American football player OJ Simpson's murder trial in 1995. The cameras that dominated Simpson's trial aren't allowed in Pennsylvania courtrooms, but scores of photographers will be lined up outside the courthouse. The jury will be sequestered for the estimated two-week trial.
The the first witness took the stand, and things got more intense. Typically, defendants in a trial such as this one - one that has serious implications and is getting major media coverage - don't go to the courtroom with such an unbridled sense of joy.