"It took a bigger name and a braver women to come forward", she wrote in response to a comment.
Sivan claims the incident happened more than a decade ago, when she was an anchor on Long Island 12, a local news broadcast.
He allegedly took Sivan into the kitchen, dismissed two of his staffers from the room, and tried to kiss her.
After Sivan rejected his advances, stating that she had a long-term boyfriend, Weinstein allegedly began to masturbate in front of her until he ejaculated into a potted plant, before zipping his pants up and returning to the party. "I'll stand up to him, but if I'm a 23-year-old in his workplace... of course, they're intimidated", she explained. He then proceeded to expose himself and allegedly masturbated in front of her and then ejaculated into a nearby plant. The news anchor said she was incredibly shocked by his behavior, frozen, and didn't know what to do. Even after the incident, Sivan said Weinstein called her office the next day, saying he had a "great time last night" and did she want to get together soon? She said he finished quickly and they walked back into the kitchen.
Some congressional Democrats have started to give charities thousands of dollars in donations from Weinstein - after a New York Times report detailed he settled sexual harassment lawsuits with at least eight women.
Weinstein's attorney Lisa Bloom told the Huffington Post that the producer was not available for an interview about the allegations, and a Weinstein Company publicist reportedly did not reply to questions.
Weinstein has been the subject of increasing controversy since the release of an explosive New York Times article that detailed accusations of sexual harassment from numerous women.
Hollywood producer Harvey Weinstein talks being "the underdog" in Hollywood, "love at first sight" with Good Will Hunting.
The friend began to go downstairs but was stopped by a security guard who told her she was not allowed.
"Authors, actors, and moviemakers should not work for any Weinstein company until he resigns". The Weinstein Company confirmed on Friday that the studio head would be taking "an indefinite leave of absence" starting immediately.