[Ren's talked to a few angels here, and while some have observed humans enough to know their weird proclivities, he knows Sandalphon hadn't had the best grasp on that either. So he supposes it makes sense that Lucifer doesn't either.

He taps his chin thoughtfully, like he's trying to figure out how to explain. Though he might be kind of letting slip that this isn't the first time he's met (a) Lucifer.] I'm guessing if you're asking that question, nobody's ever told you what sex is...it's one of those things that's weird to explain to people who aren't human, there's all sorts here...

[Somehow it's not even the worst thing he's had to explain to a non-human.]