A 63-year-old man claiming to be alleged kidnap victim Jaycee Dugard's biological dad wants a paternity test and a reunion with the daughter he says he didn't know existed.

Ken Slayton says he asked for a private meeting with Dugard — the California woman allegedly abducted when she was a little girl and held captive for 18 years — and a confidential exam to determine whether he is her father.

"He wants nothing from her," said his high-profile attorney Gloria Allred. "What they really want to do is love her."

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Allred said Dugard's mother, Terry Probyn, and Slayton had dated for about a month in 1979 when Probyn got pregnant. Probyn never told him she had the baby, Allred said.

A spokeswoman for the Dugard family said they have not been contacted by Slayton since Dugard was found.

"This all comes as a big surprise," spokeswoman Erika Schulte told The Los Angeles Times.

Dugard was 11 when police say Phillip and Nancy Garrido kidnapped her and held her captive in a hidden backyard complex of tents and sheds.

Police allege the couple raped Dugard, and Phillip Garrido fathered her two daughters. The Garridos have pleaded not guilty.

Dugard's lawyer McGregor Scott told the press Thursday that Dugard — now 29 — will testify against Garrido and his wife Nancy if or when the time comes.

"She fully understands that if there is a trial, she will be a witness, and she fully understands that some terrible things were done to her and the people who did those things need to be held accountable, which is why she is fully cooperating with law enforcement and prosecutors," Scott told The Associated Press.

Scott, a former U.S. attorney in Northern California who is representing Dugard and her family for free, said the young woman initially had mixed emotions about the arrest of her alleged captors.

For now, Dugard and her daughters, 11 and 15, are getting psychological help, receiving medical and dental care and working on basic things such as getting birth certificates for the girls.

They have expressed a desire to remain within what Probyn has described as a zone of privacy and security.

"The law enforcement folks have been treating her and her daughters with the utmost decorum and respect, and have done a very nice job of balancing the demands of their investigation with Jaycee's need and the girls' need for space and privacy," Scott told the AP

Scott would not comment on what Dugard has told him or investigators about the years after her kidnapping and her relationship with the Garridos.

He also would not disclose where her family is living or how their daily expenses are being met, although he said a trust fund set up to collect donations has raised a significant amount of money that may give them a financial cushion.

Probyn has said the family is doing very well under the circumstances. They were reunited Aug. 27.

Probyn said in a statement that she hopes her family's story will focus attention on all missing children and give hope to parents that their children could still be alive years after their abductions.

The Associated Press contributed to this report.