"Yeah, that's not even close to all of them, either."

"Are there more of some kinds?"

"I don't know if there are more that are general--like water--than specific--like rivers or rain--but there's going to be more that are general than there are of any given specific thing."

"Do air and rain parents always have water babies?"

"No. They're a lot more likely to than, say, fire and earth parents, but theoretically I could have been anything."

"Ooh."

"If I ever have a spirit baby waiting to see what it turns out to be will be fun."

"Are you likely to do that?"

"Not anytime soon, at least."

"It would need another spirit. And you are hiding."

"Yeah."

"I think elementals can't have babies."

"That would make sense, since you didn't start as one."

Nod.

"You do seem to have the relevant bits, though, or at least the externally visible ones."

"I do?"

"Remember how I said human babies happen when a man and a woman have the right kind of sex?"

"Yes."

She gestures at her hips. "You seem to have the parts involved with the right kind of sex. And breasts, which are used for feeding babies."

"Oh. Babies eat them?" Water asks dubiously, prodding one of her breasts.

"No." She takes off her own shirt. "See the nipple? Babies suck on that. When a woman gets pregnant her breasts start producing a fluid called milk that's good for babies."

"Oh. Huh."

She puts her shirt back on. "You'll see in three months."

Nod.

Something occurs to her. "Do you want clothes?"