In a lawsuit filed on Tuesday, the woman, named Miranda Pacchiana, 51, alleges that Savage abused her repeatedly between the ages of 7 and 10 years old.
She claims Savage, who was between the ages of 9 and 12 at the time, nicknamed himself the 'r.a.p.ing blob' and masked the abuse as a game.
'Beginning in or about 1976 and continuing until approximately 1979, Adam Savage, would repeatedly r.a.p.e Miranda Pacchiana and force oral sex upon her, and forced Miranda to perform oral sex on him, along with other forms of sexual abuse,' the lawsuit, filed at Westchester Supreme Court, reads, according to New York Post.
Pacchiana claims the abuse took place when the siblings were growing up in Sleepy Hollow, New York. She says in the suit that Savage would prevent her from leaving the bed and anally rape her.
The New York Child Victims Act allows victims to file lawsuits against abusers during a specified one-year 'look-back' window, giving victims the opportunity to file cases that have already exceeded the statute of limitations.
The original deadline was extended last month to January 14 2021 due to the coronavirus pandemic.
The 'look-back window' of one-year permits survivors of any age to bring lawsuits against their attackers regardless of how long ago the abuse occurred.
Savage has denied his sister's accusations, saying in a statement through his lawyer Andrew Brettler: 'While I hope that my sister gets the help she needs to find peace, this needs to end.
'For many years, she has relentlessly and falsely attacked me and other members of my family to anyone who will listen,' Savage said.
'By spreading numerous untrue stories about us in pursuit of a financial bonanza, she has tortured our entire family and estranged herself from all of us. I will fight this groundless and offensive lawsuit and work to put this to rest once and for all.'
In a statement also released through his lawyer Andrew Brettler, Adam's mother Karen Savage said: 'It makes me very sad to say this, but my daughter suffers from severe mental health challenges, and it’s devastating that she’s putting Adam and our entire family through this. Adam is a good man, and I support him completely.'
Pacchiana, a social worker, blogged about being a survivor of abuse and losing her family after coming forward with the accusations.
She wrote, 'When I first disclosed to my family that my brother had abused me as a child, I thought my whole world would change,
'I assumed my family members would share my desire to examine what had gone wrong in our home and pursue a path toward healing together. I was sadly mistaken.'
'In fact, their behaviors left me feeling as though the abuse didn’t really matter,' she continued. 'Yes, they believed me — but my family members still seemed determined to brush my trauma under the rug. Over time, I came to realize they viewed me as the problem for focusing on the abuse. Not the brother who had abused me.'
