A teenage friend of the girl groomed by Adam Johnson said she told the contact between her and the shamed footballer "wasn't right".
Follow our life coverage of the Adam Johnson trial here.
Johnson, who has been sacked by Sunderland AFC, denies two counts of sexual activity with a child, and is on trial at Bradford Crown Court.
The England international has already admitted one count of sexual activity with a child and another of meeting a child following sexual grooming.
Adam Johnson insists he's telling truth about under-age sex claims
The teenager, who cannot be named for legal reasons, appeared as a witness for the defence today via live video link.
When questioned by Orlando Pownall QC, she said: "I told her that I didn't think it was right ... [she said] that she didn't care because he was a footballer."
She added: "She said she was going to keep talking to him and she kept saying how much money he made."
Sunderland had known about Adam Johnson's admissions for months
The teen also told the court that the complainant bragged about what had happened with the footballer after the incident became "less newsworthy" and told jokes.
She added the girl was "upset" when everyone found out, and she said she had advised her friend not to continue the contact.
"I told her that I thought she shouldn't text him and she said she didn't care about his girlfriend and she was still going to do it," she said.
When asked by Mr Pownall how her friend had seemed upon telling her about the alleged sexual activity, she replied: "Happy."