[HP + DC] My Lover Is One of a Kind

Medium-to-long fic, length undecided. Update schedule unknown. Unusual pairing, highlighted! Sirius Black x Dick Grayson, no set top or bottom. What if Sirius hadn't changed the Secret Keeper? Nothing would have changed. His family would have... sold him out to that man! And that damn traitor, too! He watched helplessly as his best friend and the person he loved died before his eyes! At least... there was still Harry. His godson had survived. But... he had to get revenge. He found the traitor, but he was at his limit too. He couldn't die before killing his enemy with his own hands. But where could Sirius, whom everyone regarded as a traitor, turn for help? Just as he was at the end of his rope, an organization calling itself Kingsman found him. "Magic and the real world are intersecting more and more. We need someone who understands magic to help us." "I'll work for you, on one condition: you help me find the traitor." Years later, Sirius was no longer the man he once was. He had become a phantom agent in Kingsman, absent from the Round Table and hidden in the darkness: Galahad Alter. Once seated in the seat of calamity, his noble soul still remained within this shell, but the fire of revenge burned in his heart! If anything on this journey of revenge took Sirius by surprise, it was the agent from America. Agent 37, Dick Grayson. At least, marrying a fellow agent hadn't been part of his plan... Dick: Come clean. Have you been secretly keeping a dog behind my back? Sirius: Actually, you're the one keeping a dog. Me. Sirius: Why are you so close to that playboy Wayne? Dick: Don't be jealous. He's your future in-law. "So, can you tell me what's with that blue leotard?" "Sure. First, you can explain the stick you're holding."