Lost Creek Hollow Nothing more than The Next Good Deed

You're welcome, Kel warmed to see Crowfeather so touched by his gift. It was worth the effort, then. But then the dark leader began to speak of something entirely unexpected. Fatherhood. Kelsier felt his heart drop into his stomach, and for a moment he could say nothing at all.
He managed to collect himself. I - no. I can't, There was a firmness to his tone that suggested Crowfeather should not press the subject. Kel was normally quite easy-going, so it felt odd to close himself off, but this was one thing he could never discuss. His voice softened with his next words, however. Have you? Are you?