Bella laughs. "Yeah. That's what you do with a degree in a magic discipline. I mean that a lot of people get their degrees planning to make careers out of them - like, I'm majoring in subtle arts because I'd like to be a mental healer."
"Uh, I'm not unusually well-informed about things specific to human boys, but you can try me, I guess," says Bella.
"...On humans there are clothes involved, so not so much out there, but human beings do not have any outright retractable parts."
"I don't know the typical opacity, I'm not personally familiar with the taste but I don't think it's supposed to be sweet, and 'goopy' is probably a fair description," says Bella.
"You're welcome. You know, you could just talk to Celo himself about this kind of thing, he knows human anatomy, better than I do. He lives on my hall."
"Some people behave differently around nymphs than they do other people, but I don't see a good reason to do that, so I'd only want to have sex with him if we were dating, since that's also when I'd have sex with a member of any other species."