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The latest woman to level accusations of sexual assault against comedian Bill Cosby is former entertainment executive Cindra Ladd.

Writing for The Huffington Post, Ladd says she met Cosby when she was "a 21-year-old single woman in the world's most exciting city. He was a 32-year-old internationally known comedian and television star, one of the most likeable and popular entertainers in the business. He asked for my number and I gave it to him."

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Ladd says her relationship with Cosby began as a platonic one, with him spending time in Ladd's apartment with her and her roommate at the time. "He was married to his current wife and he acted like a perfect gentleman who didn't come on to either of us, which, I have to admit, made me wonder what his objective was," Ladd writes.

But one night, as they were getting ready to go to a movie, Ladd says Cosby gave her a pill that he described as a "miracle cure" after she complained of a headache. "For more than 45 years I have tried to recall exactly what happened that night. To this day it remains a blur," Ladd writes. "What I do recall, vividly and clearly, is waking up the next morning nude in the bed of his friend's apartment and seeing Cosby wearing a white terrycloth bathrobe and acting as if there was nothing unusual. It was obvious to me that he had had sex with me. I was horrified, embarrassed and ashamed."

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Ladd says she never discussed the incident with anyone other than her roommate at the time. "It never occurred to me to go to the police," she writes. "It was a different time and 'date rape' was a concept that didn't exist. Ladd writes that she decided to come forward publicly after hearing similar accusations from other women. (More than 20 women have accused Cosby of assault at this point.)

"I have no plans to sue, I don't want or need money," she writes. "So why speak out at all and why now? The simple answer is that it's the right thing to do. The truth deserves to be known."

Read Ladd's full post here.