HP Question

I've got an HP question for all of you followers of JKR out there: I've been reading her FAQ and responses to questions and things like that on her official page, and I've decided I'd like to write her a letter. But first, I want to make sure she's never actually addressed the thing I think she's never addressed.

Has there ever been any official discussion about sexuality in the wizarding world? Anti-discrimination and tolerance is such a huge theme in HP that I can't imagine everyone in the wizarding world is straight, but I don't know that the topic has ever been touched on. I've written up a letter asking about this, but I wouldn't want to send it if it's already been talked about and I just don't know about it.

I'm SURE that tons and tons of discussion has gone on in the fandom, but has JKR herself had anything to say about it?

Thanks :)

Also: Safe vibes to all our friends in Minnesota. *HUGS*