[There's no reason to look up from her book, she knows that voice quite well.]

You always assume it's hentai. I can only surmise that you have a secret yearning to be the submissive party in the all-encompassing grip of a 20 foot long octopus. Or would you prefer a giant squid?

[She looks up with one eyebrow raised, curious to witness his full reaction, though she doubts she'll get any real rise out of him. He's an especially difficult nut to crack.]