With Kaworu, huh? Much as the idea of Shinji/Kaworu intercourse intrigues me (I cannot deny it), I still feel that I'd rather stick him with one of the female pilots. (For one thing, at least in my version, I would want it to be completely accidental. I have doubts that anything Kaworu would do could be considered accidental; he always seems to have a pretty good idea of what's going on (well, 'cept the whole "Adam/Lilith" thing).)
Don't worry, I don't plan to watch it . But, for benefit of others:
But then, on the other hand, the Evas are kinda female (Anno's whole "uterus" thing)... But maybe they can be re-interpreted as hermaphrodites? Hmm... Yeah, I'm not really sure how it'd actually be justified in-story... But no reason I can't contradict established canon! And yes, you're right; the female one would have to take a dominant role... (By the way: that might make it seem like Rei'd have to be the one to do it. Because (at least in my head-canon) Rei's true self is Rei I, and aggressive, while Asuka's is "the doll", and passive... And I was going to say "No, 'cause the Eva's are doing it on their own"... but if it's brought about by the high sync rate, then the pilots' souls would have to be involved in some way. So, yeah. Rei it is.)
P.S. Wow, that's a lot of ellipses.