A child sex abuse victim of an Australian man at the centre of a surrogacy storm says pedophiles shouldn’t have children and she’s disgusted he has a baby daughter.

David Farnell was placed in the international spotlight after a Thailand surrogate mother alleged he abandoned his Down Syndrome son Gammy and returned to Australia with the healthier twin sister, now seven-month-old Pipah.

Questions have been raised over Mr Farnell’s suitability for surrogacy after it emerged he was jailed in 1997 for indecently dealing with three girls.

One of Mr Farnell’s victims, using the pseudonym Sarah, has spoken about the impact of the offences.

“The damage is done and it can take years to repair,” she told The West Australian newspaper.

“It’s my belief he should not have any children – not just him, all pedophiles.”

The 39-year-old said she feared for Pipah’s safety.

“We need to stop putting these perpetrators first … because there are so many innocent babies and children that are abused day in, day out.

“It’s disgusting.”

Mr Farnell and his wife Wendy have denied abandoning Gammy in Thailand, saying they wanted to take him back to their home in Western Australia.