"If the only thing my apparent mind control aura is making you want to look at my abs I think it's probably a consequence of me not wearing a shirt," a shirt appears, "and you being from 1933 where they haven't invented gay people yet."

"Uh, I know same-sex attracted people " - namely both his parents - " but I'm attracted to women?"

"Ah, sorry. 1933 where they haven't invented bisexuals yet."

"What. Is that... common?"

"Seems pretty culturally dependent really, but yeah."

Now apparently it is time to feel incredibly embarrassed. 

"Ah."

"No big deal. My only problem with shirts is that I don't like how they interact with wings when they're put on or taken off, it's not uncomfortable to wear one."

"That's convenient I guess." 

Lucien ... is going to push the embarrassment into a box in his head. It is not helpful and he can deal with it later.

"I think than my only worry is the being a demon thing, even if you aren't native to my universe I am used to almost all magic things being at least as bad as there reputations and generally worse, even when this isn't obvious at first. I can probably address this by truth spelling you, I suppose?"

"You can do that? How's it work?"

"I point a branch at you and hold a vial and they react if you lie, for a notion of lying that is relatively broad. I'd need a piece of you for it to work - a fingernail or hair would do."

"It doesn't mind control me at all, just detects it? Despite what my fantastic abs would have you believe I'm very much against mind control."

"It might feel a bit weird but in a - tactile sensationey way and not in a forcing you to tell the truth way."

"Okay. You can truth spell me then."

He actually has all the materials with him, - it's a useful spell. It will take a bit to assemble them since two of the ingredients need to be mixed shortly before casting and the small tree cutting needs to be refreshed with a technically separate spell involving a weirdly large amount of blinking but after a few minutes he can be holding the aforementioned branch and vial.

"Uh, you can refuse to answer questions if you don't want to - if you lie about minor things it might pick it up just as much as lying about major things. It also sometimes picks up misleading things as lies."

"I will try not to be too sarcastic."

"Fingernail or hair?"

Cam plucks a hair and hands it over.

The original version of this ritual would involve eating the hair but Lucien managed to get adding his stomach acid to the vial to count instead so into the vial the hair goes. The liquid inside bubbles and turns silver and to a consistency somewhere between oil and mercury. 

"So uh, have you, through action or your presence, affected my mind in ways other than the ones I am aware of and am accustomed to."

"...it sounded like you were not accustomed to being distracted by guys' abs. So far as I am aware I have never magically or supernaturally affected anyone's mind. I do know of some mind-affecting drugs I could in theory administer at range but have not done this to... I think anyone outside of medical school volunteer test subjects, but in particular not to you."

(The liquid bubbles but doesn't tilt to either side and the branch rustles but doesn't bend.)

Lucien has in fact been distracted by guys abs before like that but those were statues made by great artists so he assumed that they were meant to evoke that sort of feeling! Possibly he should reevaluate that assumption.

"Were you in fact a human, and if so did becoming a demon change how you think or feel in any supernatural or otherwise non-mundane ways?"

"I was. Being indestructible has some downstream psychological consequences but they're on the order of 'I spend a lot more time caffeinated' and 'I don't get sick so I don't spend any time in mental states influenced by being sick'; since being indestructible is magic I don't know if you mean for that to count as non-mundane or not."

"I would count that as non-mundane. Mundane is only for things that are... ordinary, I guess."

What else....

"What are your broad intentions towards me and towards my world?"

"...universal sapient flourishing as mediated by the commitments I have elsewhere and applicable practical limitations and opportunity costs?"

... Lucien stares at the vial.

"Uh, can you say that again?"

"Probably not verbatim. Universal sapient flourishing, except where mediated by my commitments elsewhere, and resource constraints and opportunity cost."