Cayce was caught somewhere dead in the middle between hilarity and anger.

"Kira," she said, laughing a little, even as her eyes sparked nastily. "I don't know about where you're from, what with the angels and shit, but where I come from? You need to have sex to get pregnant, and believe me, unless the park really pulled a number on me and wiped my memory to boot? I haven't had sex in the year-and-a-half or whatever the fuck it's been since I arrived here." She rubbed a hand over her face. "What kind of an industrial-strength springboard did you use to jump to that conclusion?"