In This Body Bleed (слэш)

Summary: "Do you remember when you broke into my thoughts, when you got a glimpse of all you wished you hadn’t?" Snape's words in Al's voice seemed almost fond. "And there you were, weak and full of hate, on all fours in my office. Do you recall?"

Written to this prompt: Albus Severus is the reincarnation of Severus Snape; Harry discovers a very problematic crush on his own son.