[That gets another laugh out of Kaworu, but this time, there's warmth in it. Isn't that the very reason Billy is attracted towards him? And the reason Kaworu is intrigued by his kind, too. Truly... he has never been anything more than a foolish boy...]

Please... forgive me. Don't concern yourself with trying to understand. [he takes a few slow breaths.] I've betrayed you, but just stay with me a little longer. Let me listen to your heartbeat. I've realized how deeply I need you all.