Where the old hurts lie is where he can feel the least, scar tissue numbing the sensations if not the memories. He might not notice anyway, too consumed by other sensations, like their breaths intermingling and the softness of Oswald's skin under his lips. And the pleasant feel of his body where Riddler moves against him, slowing from his frantic need to shower affection and make Oswald feel wanted and instead enjoying the way Oswald's softer body feels against his own, all hard bones and angles.