Colin curled against Zach for a moment, feeling guilty for bringing it up now. He shouldn't have said anything. He should have just let it be, but then he hadn't. He leaned back the more he spoke, watching him quietly. He couldn't what? The minute Zach finished the sentence, Colin's face fell.
"I don't know how to promise that. I'm going to die one day. I don't k-" He stopped himself. That wasn't being helpful. He placed a hand on either side of Zach's face as he looked up at him again. "I can promise that I'll take every precaution to make sure I don't die. Does that work? I'm not allowed to lie...so..." So he couldn't promise he wouldn't die.