Michael Aaron Milligan prepared for his full-frontal scene on The Hunting Wives weeks in advance — and it was surprisingly physically demanding. “I was so excited to put myself out there and put myself forward by just really showing up in a much different way than I’d ever had before. I’m like, ‘I’m going to be nude, I’m going to be holding a gun and it’s going to be dangerous,’” Milligan, who played Kyle in the hit Netflix series, exclusively told Us Weekly. “For my preparation, it was just trying to free my mind.” Milligan, 45, tried not to stress…