AceShowbiz - %cRob Kardashian%'s sisters declare a war against his fiancee %cBlac Chyna% after she was caught cozying up to another man. Rumor has it, %cKim Kardashian%, %cKourtney Kardashian% and %cKhloe Kardashian% hire a private investigator to spy on Blac.
"Rob's sisters have hired a private investigator to follow Chyna and catch her cheating," an insider reveals. While Kim, Kourtney and Khloe would certainly like to get rid off Blac, they are not hoping to catch her in the act as "it will break Rob's heart."
"It is a double-edged sword. Rob's sisters know that, if they catch Chyna cheating, it will break Rob's heart! The last thing that anyone wants is for Rob to slip back into the dark depression he was in before meeting her," the insider tells Radar Online.
"Rob is starting to think he's not man enough for Chyna," adds the insider, "The drama is really affecting him."
A spy, who saw Blac with another man while attending a Super Bowl party in Los Angeles on Sunday, February 5, told Page Six, "I would definitely have thought they were a couple if didn't know better." According to the spy, the guy "at some point had his hand in her lap or on her legs." Blac was also heard saying she was "faded" at the bash.