Khloe Kardashian's Mom Hitting On Her Co-Worker?

Kris Jenner is on the prowl! Khloe Kardashian's married momma was caught cuddling with her X Factor co-host Mario Lopez, backstage! The flirtatious momanager, bragged about her close-encoucter with Extra host, by Tweeting this (above) pic, and writing:"Prom date at XFactor with @mariolopezextra"We're not sure if this pic was intended to make her husband, Bruce Jenner, jealous or embarrass Khloe… Either way, the fact that Mario was willing to pose for this picture proves how sweet and charitable he is! [Image via Twitter.] Tags: bruce jenner, khloe kardashian, kris jenner, mario lopez, twitter, x factor