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A former Playboy model apologized to first lady Melania Trump for a 10-month affair she claims she had with President Donald Trump that started with him offering her money after the first time they had sex.

During an interview with CNN's Anderson Cooper that aired Thursday night, Karen McDougal said Trump tried to pay her after their first sexual tryst at a bungalow at the Beverly Hills Hotel in 2006.

"Well, after we had been intimate, he, he tried to pay me. And I actually didn't know how to take that," she said. "But I looked at him and I said, 'That's not me. I'm not that kind of girl.'"

She cried on the way home and didn't think she would see him again, but agreed to go on other dates with him after he called her back, she said. McDougal repeatedly described Trump as "very charming" and "sweet."

McDougal said she continued the relationship with Trump for about 10 months and broke it off in April 2007 because she felt guilty. She recalled traveling to meet Trump at his properties in New York and New Jersey and said she had sex with him "many dozens of times."

McDougal said they also spent time at a resort at Lake Tahoe in California, where adult film actress Stormy Daniels has said she met Trump.

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Daniels, whose real name is Stephanie Clifford, said in a lawsuit filed earlier this month that she had an "intimate" relationship with Trump in 2006 and 2007, and she is now locked in a legal battle over whether she can publicly discuss it.

Daniels signed a nondisclosure agreement shortly before the 2016 election in exchange for a $130,000 payment facilitated by Trump attorney Michael Cohen.

For her part McDougal said she never wanted to discuss her relationship and repeatedly rebuffed inquiries from reporters about the alleged affair. But after the story became public, she wanted to get out and tell her side of what happened, she said.

The White House has said Trump denies having an affair with McDougal and did not immediately respond to a request for comment about the interview Thursday night.