There it was, that look in Percy's eyes just as he came and there wasn't anything in the world that Cass would trade that for at this moment. He didn't need the command, his body was already so highly strung that it was a small miracle that he hadn't come already.
When he did let go though, there was no holding back, and he moaned with pleasure as he spilled over Percy's hand and his own stomach.
After he could only pant, releasing his grip on Percy's hair, letting that hand move over his face. 'Gods, I-' he halted himself, smiling. He didn't want this to turn into another discussion on whether or not he really meant it when he told Percy he loved him. Instead he pulled Percy's face closer, kissing him before leaning his forehead against his. 'See not hurt at all,' he said with a grin, deciding that the small stab of pain in his abdomen was completely not relevant. It wasn't as if the pleasure wasn't much greater, after all.