Khloe Kardashian reportedly hired a private investigator to follow her husband Lamar Odom once she speculated he was cheating on her. According to Radar Online, Kardashian had someone trailing the NBA player and discovered that there were a total of five mistresses.

Only two - Polina Polonsky and Jennifer Richardson - have come forward with claims they had an affair with Odom but three more could surface soon.

A source told Radar that Kardashian had someone spying on Odom because of an infidelity clause he signed in their prenup that states if he cheated she could walk away from the marriage with millions of dollars.

"Khloe has not only photographic proof that Lamar cheated on her with at least five women, but has copies of text messages between Lamar and the other women," the source said. "She is a very smart woman and knew that she had to get the proof because of the infidelity clause in their prenup."

Several sources have said that the "Keeping Up With the Kardashians" star doesn't want her three-year marriage to end in divorce and wants to help Odom get better. However, if they do decide to split she could get paid a "very large lump sum of cash or a very hefty spousal support."

The former Clippers player reportedly signed a clause that would grant Kardashian millions but it would also drag out a divorce if they did decided to split.

"An infidelity clause can make divorce prolonged and complicated," a source told the Life & Style. "Of course, then you have to prove the infidelity; all the dirty little secrets have to be exposed."  

Kardashian and Odom would also have split most of their possessions in the event of a divorce including a $500,000 Rolls Royce, a $140,000 Porsche Panamer and her $850,000 engagement ring. According to Radar the 29-year-old would most likely end up keeping their Tarzana mansion.

It has been rumored that Odom hasn't even been staying at their house ever since he returned from his secret one-day rehab stint. According to TMZ he has been living in a downtown Los Angeles apartment where he was recently spotted wandering around late at night before getting into someone's car.