And then there's the awesome mythological background, being as in the old stories, Lilith was Adam's first wife, created from clay as he was (thus, the Clays), and it's interesting to note that pretty much every reference to her includes the point that Lilith liked to top during sex. Given that this is written by the author of Xxxenophile, I'm pretty damn sure Phil knew about that point when he named them.

. . . ohgod. For the sake of my brain, I'm gonna have to decide here and now that it won't be a smutfic.