KNOXVILLE, TN—A compliment went horribly awry Monday, when Greg Upchurch, 26, praised girlfriend Sheri Werning, 25, for her "juicy ass." "I didn't mean fat," said Upchurch, explaining himself to the offended Werning. "By 'juicy,' I meant curvy, you know? Like, that you're really healthy and athletic, and not some sickly little stick figure." Having dug himself into a hole, Upchurch pondered comparing Werning's posterior to Jennifer Lopez's, but ultimately decided against it.