A new report revealed there is another concern that has been added to Lamar Odom's growing list of problems.

A hip-hop dancer, who is alleged to have had an affair with the NBA free agent while married to Khloe Kardashian, is reportedly shopping a sex tape of her in bed with Odom.

In the latest issue of Star   magazine out on newsstands, an insider with knowledge of the situation said Khloe is aware a tape is being shopped around by a friend who works in the adult entertainment industry. The mystery mistress is shopping the footage to adult film production companies.

"[Khloe] wasn't going to leave Lamar," our source reveals. "She was trying to get him help and work on forgiving him in an attempt to save their marriage. But this is just too much for her to deal with."

"Khloe still loves Lamar, but the emotional hits just keep coming," the source added.

Star reported earlier this year that at least two women have come forward about having an affair with Odom during his marriage to the Keeping Up With The Kardashians star.

Lamar Odom Mistress Jennifer Richardson Reveals Alleged Affair With Khloe Kardashian's Husband

Jennifer Richardson, told Star in a bombshell report that she first met Odom at the Stadium Club in Washington D.C. in January 2012. She said they first hooked up in the nation's capital, and the NBA player later arranged for her to fly to meet him in North Carolina and other cities during his away games. She said they slept together at hotels in various states, and she attended his basketball games when he played for the Los Angeles Clippers.

Lamar Odom Mistress Jennifer Richardson VIDEO, Discusses Threesome With Khloe Kardashian's Husband (Watch)  

Star magazine later reported that attorney Polina Polonsky said she met Odom the same night as Kim Kardashian's baby shower. Radar Online published excerpts from Polinsky's interview.

"Lamar and I have known each other for a long time, but June 2 was the first time we really hung out," Polonsky reportedly told Star.

She said she was under the impression that Odom was separated from his reality star because he acted "completely available."

Odom wed Kardashian in a lavish affair in September 2009 after one month of dating. Their wedding was televised for an E! special. They later had their own reality show Khloe & Lamar on E! for several seasons. Odom has two children with his ex-wife and childhood sweetheart Liz Morales. Morales shared the woes of her marriage to Odom in TLC's now cancelled series Starter Wives.