The latest allegations take to 11 the total number of women who have levelled charges of sexual misconduct against the actor-turned-candidate, seeking to become California's next governor.
Coming just four days before California's historic recall election, the allegations are potentially embarrassing. But latest opinion polls indicated that Schwarzenegger was still leading the crowded race.
An assistant director responsible for keeping Schwarzenegger on schedule on the set of the 1988 movie "Twins" told a newspaper that the actor used to undress in front of her when she was in his trailer and once pulled her down on his bed.
A woman working as a stand-in for the lead actress of the same movie said Schwarzenegger had pressed up against her and forced his tongue into her mouth.
A third woman accused the actor of grabbing her buttocks and making lewd comments as she escorted him onto a set for an interview in the 1980s.
The star of celluloid blockbusters like the 'Terminator' apologised on Thursday for his behaviour in response to an earlier set of allegations leveled by six women.
"I have been a loose cannon sometimes in my early years," he told reporters, while insisting the revelations were politically motivated.
The six women had accused him of touching them sexually without their permission.
"But those that I have offended, I want to apologise to them, but they have never said to me that I have offended them," Schwarzenegger said.
The actor's wife, Maria Shriver has come to the his defence.
"Nothing hurts because I know the man I am married to," she said. "He has apologised and that’s courageous."