Williams explained, "Family friends who had a daughter invited me to visit their friends in California with them. The family we stayed with had two kids.
One of those kids was a teenage girl. "Susan, who was 18, smoked, drove a car and was the epitome of cool. [My friend] Nancy and I slept in the den. One night Susan crept in."
"She told me to lie down on the rug. I was confused. Are we going to play a game? As I tried to make sense of it, Susan pulled down the bloomers of my cotton baby-doll pajamas. 'What are you doing?' I asked. 'Don’t worry -- it’ll feel good.'"
"I lay there paralyzed. What was going on? I didn’t speak. She kept at [the molestation] for I don’t know how long. She slid my bloomers back up and whispered: 'Don’t tell anyone.
Williams was so shocked by what happened that she didn't tell an adult what happened.
"For years I kept Susan’s visit to myself. I didn’t really understand until college. I was with my boyfriend and it hit me and I blurted out: 'Oh my god -- I was molested.'"
But the actress is a survivor, and as she explained in the new issue of People magazine the incident "didn’t paralyze me, and I don’t dwell."
She did make sure to use her experience as a learning experience for her kids. "I was verbal about it so they knew what to look for," she said.