Scott Peterson's former mistress sued by ex-boyfriend

(10-07) 16:30 PDT Fresno, Calif. (AP) --

The former mistress of convicted killer Scott Peterson is facing a lawsuit by an ex-boyfriend looking to get back nearly four years of child support payments.

Anthony Flores, 29, filed a lawsuit against Amber Frey, 27, on Wednesday after years of thinking he was the father of her first child. The lawsuit does not ask for a specific amount of money but says Flores was ordered to pay $567 per month in child support in September 2001.

Flores said Frey filed court documents in 2001 indicating he was the only possible father of her daughter, reported KFSN, a local ABC television station.

Flores, a Fresno hairstylist, found out that was not true last month after a paternity test.

"Given the Scott Peterson case, the timing of everything ... I have a lot of questions, and so does Anthony, as to why it's taken four years to come to this," said Warren Paboojian, Flores' attorney.

Frey could not be reached for comment. Her attorney, Gloria Allred, read from a statement on Friday saying Frey "will vigorously defend against any claims that Anthony makes and she expects to be fully vindicated."

Flores also said Frey defamed him in the book she wrote detailing her role in the Peterson case, and names her publishers in suit.