Real Housewives of Beverly Hills star Kim Richards has some serious dirt on her sister Kyle and apparently she's waiting to reveal the shocking information to the world.

Will Kim & Kyle Richards Reconcile After Crazy 'RHOBH' Season 5 Reunion?

During part 3 of the season 5 reunion, the two sisters got into another heated argument about why their family feud began and according to Kyle the issue began after Kim's dog Kingsley bit her daughter Alexia.

Kyle told mediator Andy Cohen that her child stayed overnight at Cedars Sinai Medical Center for five days because Kingsley bit her hand.

'RHOBH' Execs Reportedly Firing Kim, Kyle And Lisa Rinna From Reality Show

A furious Kim said that she's upset because her sister decided to make the situation public, which ultimately hurt her family. "You're horrible! This is why I don't like her," Kim said during the show.

Kim implied that there is more to the story and while she threatens to reveal the shocking information, Kim didn't say what she knows.

Kyle admitted that she never said that the dog was Kim's animal and despite the fact that Kim gets emotional, her sister refused to let her get away with her behavior.

The two ladies clearly have yet to resolve their issues and the drama between the sisters is still up in the air.

Real Housewives of Beverly Hills has been picked up for a sixth season and details about the cast are still up in the air. Rumors around the Internet claim that reality star Brandi Glanville has been fired from the show, and apparently Kim, Kyle and Lisa Rinna may be getting the boot as well.

Be sure to check in for more updates on when the show will returns and for information about the cast.