On rare occasions, we get to see Dashing Diether in his underwear or in the buff. He doesn’t really do naked romps for ads, except the usual low-rise-denims-and-shirtless stuff he does for Bench shows. In the movies, he’s more daring like when he wore grandpa underpants 13 years ago. Recently though, he upped the ante [and dropped his shorts] by showing his butt in the ensemble movie 24/7 In Love released last year. See his butt….