I quite agree with you about Crowley/Eiri. Also, wow, snark. And about Seishirou and Spike, thoroughly. And Draco and Hakkai.

The reason I disagree with you about Jack and Hisoka is that I think that as far as Hisoka's concerned, if he doesn't top, he doesn't play. And I don't think Jack would be focused enough on him to be worth forcing him, so. But really, you're right-- Hisoka wouldn't have sex with almost any of these people, so it makes sense for him to drop out.

Re: Ayame, I just got this visual of him spreading his arms wide and shouting, "Now, Superman, take me! And we shall make love as the gods!" or something along those lines, only better phrased, because, dude, Ayame. I think he'd really enjoy it. And Clark would go along with it, cuz, I mean, what? (Assuming there weren't the problems referred to last comments thread.

But the thing about Kira and Shuuichi is a) the last third of Seed, and b) I think Kira is entirely capable of bottoming from the top, and likely to when confused (see "Fray.") And while Shuuichi may have questions about his masculinity, I think he enjoys bottoming, and would go for it. I think.

You picked Tsuzuki. If that jogs your memory, I'd love to hear your logic.