Khloe Kardashian, Lamar Odom Cheating Scandal: Third Mistress Comes Forward with Allegations of Infidelity

The third woman has come forward and alleged to have had a relationship with Lamar Odom going back nearly a decade as the troubled NBA star battles allegations of drug abuse.

Sandy Schultz, 29, is the third woman to come forward to say she allegedly had an affair with Odom, 33, but their relationship reportedly began long before he had ever met Khloe.

"Lamar and I first met in 2003 at Studio One nightclub in West Hollywood," Schultz tells Star.

Over the next two years, she claims, the couple "dated solidly … and then on and off for seven years after that."

The second woman to come forward alleging a six-week affair with Odom is Polina Polonsky who claimed that she carried on with the affair while under the impression that Lamar's marriage to Khloe was about to end.

Polonsky claims that the two met on June 2 at L.A.'s Roosevelt Hotel and according to her, the NBA star had been living at the upscale hotel for a week.

"I was under the impression that he had left Khloe, and that's why he was living at the Roosevelt," she told Star magazine during an interview. "He acted completely available and we definitely had a mutual attraction."

The first alleged mistress, Jennifer Richardson, previously claimed to have several items proving she and Odom were involved in a relationship for several months.

Richardson is thought to have plane tickets, invoices and game tickets from her time on the road with Odom between December 2012 and February 2013, when Odom played for the L.A. Clippers, a source told Radar Online.

Despite both Polonsky's and Richardson's claims, neither Odom nor his wife Khloe have addressed the unconfirmed rumors, and claim publicly to have a happy marriage. There is potential that the claims of affairs are nothing more than vicious rumors.