Hmm, PVC costumes, page 3 girls, flirting with the new girl, and now hentai. Kay, you're beginning to warp my impressions of you as a fair-skinned, innocent Americano maiden... 
Party like it's 1199!
Fair-skinned: Racist and classist. Women who had to work for a living tended to have tanned skin from being outdoors in the sun. Fair skin was a sign of high class.
Karyuu wasn't saying that she liked Hentai. She simply said that people are individuals. (Personally, I think anyone who gets excited over that kind of stuff has a sickness.)
Innocent: Again, this pushes the idea that attractive women should be both innocent and sex ready at the same time. This is a very destructive idea for a few reasons -- mostly because of the expectations it encourages.
Maiden: Idea of the ideal woman as helpless, innocent, unworldly, in need of (male) protection and saving.
