When we think of The Tonight Show with Jay Leno , we picture a family-friendly forum where Republican candidates can come to read funny headlines out loud and maybe, finally, meet a real-life black musician. Lately, though, our G-rated suppositions have gone to hell as the lame-duck Leno has regaled the audience with stories about his interest in an underage Jessica Biel and his auto-erotic fantasies involving actress Scarlett Johansson. Into a more ribald chat show, then, does cheeky VMAs host Russell Brand walk — and boy, does he make the most of it:As he sits on the couch next to guest Eva Longoria Parker, a misheard reference to PETA sends the comedian on a tangent that splashes the audience with sexual offers they've likely never contemplated before bedtime. Bold talk when delivered to a Desperate Housewife , Russell, but we're reserving your comedy credibility until you introduce Miley Cyrus to the concept of a Dutch Oven during this weekend's VMAs.