>>4076368What about the small(ish) division of people who are jealous of the fictional character dating the other fictional character and want nothing to do with the first fictional character? But in answer to your questions, I'll try my best.
>Does Kazuma ever learn how to flirt?Probably not, he doesn't seem like the kind of guy who would flatter with words, he'd probably just act (sort of like your image),
>Who sets the tempo?In the LN, Megumin is quite a bit more... feisty, so as realistically we can get with fictional characters, she'd probably set it. Doujins, on the other hand, have Kazuma... well, you know. These guys describe it pretty well:
>>4075998>>4076037>How do they get Aqua out of the house long enough to fool around?Probably just tell her they restocked her favorite booze at the other end of town at discounted price to get her out for 45 minutes or something along those lines,
>Do they ever do chuuni shit to spice things up?Maybe occasionally, Kazuma doesn't really like Megumin's little flair so there you go,
>Just how would a developed relationship, which means including their sex lives, between the two of them look like?Probably lots of banging due to Kazuma's constant horny, but there'll be some romantic aspect to it (maybe). In public, of course, they most likely wont do displays of affection right in front of everyone, so most of it will be, as you said, behind closed doors.
