In Marcmedal's 'Only One Naked' comedy sketch, a Rubia with a rack that won't quit is the punchline. She struts around, her big, jiggling tits the center of attention. The humor is in her confidence, her willingness to flaunt what she's got. But there's a thin line between comedy and desire, and this Rubia walks it expertly, leaving us in stitches and hard as a rock.