"I hope she feels supported and knows she has a team behind her".
But David McFarland, his lawyer, insisted his client's hand "is not underneath Miss Swift's skirt, and her skirt is not rumpled in any fashion".
He was also asked whether it was he who had touched Swift inappropriately, as was alleged in Mueller's testimony.
In addition, Swift repeatedly peppered her responses with tough comeback lines.
Taylor Swift's former bodyguard told how he witnessed the pop star's skirt being flipped up before she was then groped by a DJ as he gave evidence in a USA courtroom Friday. "I heard it from my daughter's mouth". Coomer called it a lie.
She got a laugh when she said Dent saw Mueller "lift my skirt" but someone would have had to have been underneath her to see the actual groping - "and we didn't have anyone positioned there". Mueller's hand is behind Swift but it is not clear where it is placed.
When it was brought up that Mueller lost his job over the incident. Austin Swift, the pop star's younger brother, arrived to court via the main entrance on Thursday, marking his first appearance at the trial.
"I am not going to allow your my client to make me feel like it is any way my fault because it isn't".
The case remains underway in federal court in Denver.
McFarland said to her that she didn't know whether Mueller had groped Swift.
In all, Swift testified for about an hour. Her team told the radio station about the incident but never demanded the DJ be fired, she said.
"I don't know anything about Mr. Mueller".
Taylor Swift's former bodyguard has told a jury he witnessed a DJ putting his hand up the star's skirt.
"Because my ass is located on the back of my body", she replied. "I saw her push her skirt down and move away", towards Mueller's girlfriend, who was standing on Swift's other side.
Swift alleges that in 2013 Mueller groped her during a meet-and-greet event at the Pepsi Center in Denver. She testified she first mentioned the incident about 15 minutes later to her photographer Stephanie Simbeck.
Twitter commentaries took note of her strong presence, as well as the text of her suit against David Mueller, where she hopes that it will set an example for women who might have second thoughts about revealing any past moment of humiliation when inquired of them.
Swift has testified that "it was a definite grab". A very long grab, ' she added. Asked if he grabbed her backside, he said: 'No, I did not'.
He was sacked from his $150,000-a-year "dream job" at country station KYGO-FM after Swift's team reported the alleged assault to his boss.
Andrea Swift said she wanted to keep the encounter private because she didn't want it to define her daughter's life.
Mueller is suing the pop superstar, saying her claim that he groped her during a meet-and-greet in 2013 is false and caused him to be fired.
Swift countersued, claiming sexual assault.