Giving evidence Monday in the New South Wales state Supreme Court, Gayle said the allegations were "the most hurtful thing I've come across in my entire life".
The team's former massage therapist Leanne Russell claims the big-hitting batsman pulled his towel down to reveal his privates during the 2015 World Cup.
"He pulled his towel out and down, I proceeded to shield my eyes and said 'no",' Ms Russell said.
"Chris asked me what I was looking for", she said.
He says Fairfax falsely claimed he intentionally exposed his genitals to, and indecently propositioned, Ms Russell in the West Indies dressing room during a Sydney training session at the 2015 World Cup.
Matt Collins QC, for Fairfax, has said Ms Russell would testify that Gayle exposed himself to her, leading her to rush from the room and burst into tears.
She said she was on antidepressants, but had not, and did not, receive treatment from a psychiatrist.
'I saw the top half of Chris's penis, I apologise, and I thereafter shielded my view, ' said Leanne Russell in an overflowing courtroom in the NSW Supreme Court on Wednesday.
She said Gayle asked her: "What are you looking for?" "I was crying uncontrollably".
Ms Russell told her Gayle's comments made her "physically sick" and she wanted to show support for McLaughlin and other women working in sport.
But he admitted he sent a text to Russell on February 10, a day before the alleged incident, which simply said "sexy".
Ms Saltau said Ms Russell had "nothing to gain and a reasonable amount to lose" by coming forward with her claims.
Bruce McClintock SC said the West Indies team operations manager, Sir Richie Richardson, "repeatedly refused to confirm or deny the story".
"I remember being upset", Russell said.
Russell told her friend in the messages that she had "told them all to f-- off with their late-night texts".
According to reports, Russell went to the West Indian dressing room looking for a towel.
"I have a history of eating disorders", she said.
Smith accepted he sent it but said it was "maybe a minute before the massage".