The only thing I can say at this point is:
GIVE. HER. THE. D.
Also, now I'm aching for a mango where the main character is like Moeyuki from Bokuben and the gyaru is like Anjo-san, it won't happen in this lifetime though.
I have mixed feelings about this: should she really be happy hearing a request like that? I mean, he basically said that she’s easy with men, or even worse.
Everything is topnotch but the writing is getting borderline stupid here.
No amount of MC cowardness/hesitation could compensate this kind of obvious flirtation and provocation by the FMC. Only a masochistic eunuch would see this as harmless teasing. Either she takes it down a notch or the MC has to at least act on it somehow, even if just a little. This kind of main cast dynamic is way too unbalanced to be able to last a lot of chapters without showing some kind of p-r-o-g-r-e-s-s or becoming plain annoying.