Kristen Bell and Dax Shepard. Alberto E. Rodriguez/Getty Images Kristen Bell’s husband, Dax Shepard, is enjoying the chemistry she shares with Adam Brody in Nobody Wants This. “Even I can acknowledge watching it, like, ‘Whoa, that’s hot,’” Bell, 44, recently told eTalk of her on-screen rapport with Brody, 44, in the hit Netflix rom-com series….