Report: Did Lamar Odom Cheat on Khloe Kardashian?

Rumors are again swirling about the state of Khloe Kardashian and Lamar Odom's marriage thanks to a Los Angeles woman who has come forward claiming to be Odom's mistress.

Polina Polonsky, a lawyer, allegedly passed a lie detector test administered by Radar Online before telling the site details about her alleged six-week affair with the NBA player.

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According to Polonsky, their affair started in early June. At the time, Odom was allegedly staying at the Roosevelt Hotel. "I was under the impression that he had left Khloe ... he acted completely available and we definitely had a mutual attraction," she said. "After we had sex, Lamar stayed the night with me; the next day we went back to the Roosevelt. ... I stayed there with him for the next couple of nights."

However, Polonsky says trouble started a short while later when Kardashian showed up at the room Polonsky was sharing with Odom at the Vagabond Inn on July 13. "I told her to leave, but she refused. I called the front desk and asked them to call the police because I was so scared, but no one ever came," she said. "While Khloe was screaming outside the door, Lamar was calling people to come and get her. She was out of control.

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"The whole scene was so frightening — and I couldn't understand why we were hiding, because he made it clear that he didn't want to be with her!"

Polonsky says she wanted to go public with her story because Kardashian has investigated her loved ones and has attempted to personally attack her. "I can't even go home, because I'm scared that something bad will happen," Polonsky said.

The news comes the same day that a woman named Jennifer Richardson told Star Magazine that she carried on a year-long affair with Odom. "I was kind of angry, at first, and pissed off," Richarson said. "But it just hit my heart so hard, I couldn't speak. I knew that staying with Lamar from that point on was only fooling myself."