"Eh..." That's hard for him to answer, because he's not totally sure that he can answer in a way that would make sense. "We're all still human genetically and the layouts of our bodies are still pretty much that. But, some of us don't expressly look human, no. We're referred to as heteromorphs."

As in, they have their own classification. And if Undine knows her prefixes, she'd realize that the classification is based on the distinct difference in morphology.

He accepts her hold on his arm, the opposite hand coming to rest lightly over the back of it. He's deliberate and gentle about every move he makes.

"I take it that it isn't something in your world."