'Alexis Bellino Is So Full Of (Bleep),' Says RHOOC Castmate Tamra Barney

Tamra Barney and Heather Dubrow are taking their new The Real Housewives of Orange County costar Lydia McLaughlin under their wing, and it's all about getting her on board in detesting Alexis Bellino!

Over a Champagne lunch, Tamra and Heather grill Lydia over her friendship with Alexis, and clearly are trying to turn her.

"I don't like liars," Tamra says bluntly.

"Alexis is so full of sh*t," Tamra later says into the camera.  "She's like a puppy who needs to be guided one moment and craps on your floor the next."

The Real Housewives of Orange County airs Monday 9/8c on Bravo .

You can watch a sneak peek here!