Charlie Sheen and Emilio Estevez reunited for a rare photo together. Thirty-eight years after the release of their hit 1988 movie “Young Guns,” Sheen, 61, Estevez, 64, and their co-stars got together at Fan Expo in Dallas, Texas, on Saturday. Fellow “Young Guns” cast member Lou Diamond Phillips posted a photo of himself on social media, along with Sheen, Estevez, Casey Siemaszko, Kiefer Sutherland and Dermot Mulroney with the caption, “F’ing Epic!” Fans were enthused by the rare cast reunion, including “SNL” star Kenan Thompson, who commented with fire emojis. The movie was a Western, fictionalizing the real-life outlaw Billy the Kid,…