That's one fancy way of saying saying that you're going to jack off like crazy until your lust goes down... Well, any man would understand. Seriously, with this girl around you'd either need to get castrated, empty your sacks 2-3 times a day or just give in and do her as she's clearly willing.
...I would've done her already... Well, maybe I would've waited a few days until feelings were confirmed properly... Nah, who am I kidding, I would've already gone all the way the very first night... Or perhaps the second one because I'd be a bit worried about what she's trying to pull the first night, if it was a trap etc.
I don't know whether I should respect these japanese protagonists that just refuses to do it or if I should look down on them for being ball-less cowards that aren't true men. I think the second option is more apt. But really, I doubt that these guys would really exist and if they do, they're inept cowards. It's just something that we find in manga often because if the mc would actually do the girls as quickly as any normal human being would, the story would quickly end. After all, it's a manga about their relationship as they get closer day by day, if they had sex we'd reach endgame already and it'd become a whole other kind of manga. We have real porn for other things.
I wish the author wrote a true hentai version AS WELL though(so we have both! That'd be cool), where the mc goes on a rampage and fucks everyone, be it her, her loli mother or every other relevant person in school like. But I guess we'll have to make do with this teasing and these borderline porn scenes. It's not as if our imagination can't fill up the missing scenarios, wahahaha. Don't underestimate internet warriors that've trained their erotic imagination since they were 8. Well, actually, the author did draw up a hentai version, "okusama wa seito kaichou", which is something like a first version or alternate version of this manga, but the art is honestly terrible not to mention overly censored. It's not sufficient as porn and even the story was shit. Amazing how much someone can change in 4 years(that alternate/first version was drawn 2007, this one started 2011), the entire art style changed and became ridiculously much better.