Dancing with the Stars: Behind the Scenes!J.R Martinez wigs out! Rob Kardashian & Derek Hough re-enact Lady and the Tramp! See how the contestants goof off when they're not on the parquet!

KISSY FACE

"Me & Kristin had THE BEST time tonight!!!!! Thanks for watching. Xoxxo," gushed Chynna Phillips, who posed for this smoochy shot with Kristin Cavallari.