Ariel (14) who plays the part of Alex Dunphy on ABC's comedy hit Modern Family has been under the care of her elder sister Shanelle Gra since early October.
The child star was removed from her family home after allegations that she was being physically and emotionally abused by her mother Chrystal Workman.
A Hollywood publicist has now come forward claiming he was being hounded by Chrystal, who said she had nude photos of daughter Shanelle (34). It's understood the photos are almost 10 years old.
The publicist refused to get involved -- but he claimed Chrystal "hounded" him about leaking the photographs for a number of days.
Chrystal has repeatedly denied she was abusive towards Ariel in a bitter custody battle.
Publicist Jonathan Hay said that Chrystal wanted him to sell the photos for her so she could discredit her daughter Shanelle.
"In all my years of being a publicist, I have never seen anyone stoop as low as wanting to sell out and destroy the reputation of her own daughter," he said.
"Chrystal said she wanted the public to see Shanelle for who she really was and smear her daughter in attempts to try and get custody back of Ariel."
Mr Hay, who lists Rihanna and the Kardashian family nanny as previous clients, has also claimed Ariel's mother has been phoning him repeatedly in a bid to win him over to the idea.
Chrystal reportedly said she is only trying to do what is best for her daughter Ariel.
"I love my daughter Ariel and I am trying to make sure she doesn't fall under the wrong influences so she doesn't become the next Lindsay Lohan," she said.