Kathy Griffin and Russell Brand out-filth each other in a hilarious preview for her Bravo TV talk show, and Breaking Celebrity News has the outrageous clip!

The dirty-mouthed comedians can be seen dropping crude words, with Russell, 37, screaming “w****r” and Kathy, 52, dropping the C-bomb!

The pair then get into some serious sex talk when Kathy tells Russell: “You’re going to be sore when I’ve finished with you,” to which Russell replies he’s built with a special “lubricant,” - how charming!