@Julie808 nails it.

A simple answer could be "Not someone stupid and vulgar enough to ask the question you just did." combined with "I'll be leaving now."

I would reply by hitting the "next" button. No fair in trying to cheat out of the natural discovery. Spend time with a person and see what "turn ons" you share, quietly honestly and genuinely. Not going to get a real answer with with a cold question like that.

It's a question I'd only ask during foreplay, otherwise I'd have thought many women would respond "seeing a man do housework"

Intelligence and getting to know someone first. And friends wonder why I'm single; I tell them this is what is out there.

I don’t ask that question. I might ask what her passions are, like hiking, gaming, or whatever.

My answer if asked, is intelligence, looks, and touch

Not men who ask me intimate questions like what turns me on?

Intelligent Conversation, a kind personality, acceptance of each other and the faults of each other, a genuinely cheerful smile, a good sense of humour that allows for each other to be themselves humour-wise ( especially since mine can often be quite Risque, Bawdy, etc, etc,) NOT seeing the other person as clay awaiting to be re-modeled AND NO religion/religious affiliations in particular.

Intelligence, personality, education, looks

Maybe it's kind of clumsy and lazy to ask a question like that. If you really want to know what turns someone on, I think it's a matter of taking all the time it takes to know well that person, to be a good listener, to have some empathy, to make sure the mood and the chemistry is right.

Good answers!!