He could see Oliver inching dangerously upwards, but before Percy knew what was going on, Oliver was sucking him in a highly inappropriate place. And it blew his mind. "Ohsssssweeeeetgods," Percy whimpered, throwing his head back and closing his eyes. His hands scrambled through the sheets for purchase and his toes curled in ways he didn't know toes could. Oliver's warm mouth sucking him there – it was a sensation he had never experienced before.