Ay, Joe! Sofia Vergara is reportedly engaged to hunky beau Joe Manganiello after dating for six months.Take a second to let that all sink in. Or ponder natural selection.The engagement news came via E! News, Page Six and Us Weekly on Monday, which reported that the "True Blood" actor proposed to the "Modern Family" star on Christmas Day.Neither Vegrara nor Manganiello publicly confirmed the news, and reps for both...