Doesn't matter that he's a virgin, because he's a Hentai Protagonist, it's perfectly possible and probably quite easy on his end to just fuck her silly...Which he did.
Still...When he says they 'go way back', does that mean they're Osananajimi or something?
Hmmmm i dont know if id put my dick in her who knows how many men shes been with. Not that im saying its bad for girls to go have sex with alot of men. Its more of being careful that you dont catch a disease. And she looks like the type that doesnt use a condom. Oh well a happy ending
After that (a-hem) perpetraator of vanilla calling itself "I Want To Go On Dates, Too", THIS WAS SIMPLY GLORIOUS!
And if I read things right, we have Kazuomi achieving the "kogal/childhood friend" route, discovering Kanami's 'weak spot' (an amazing feat for a virgin-kun's first time at sex) and effectively making her his girlfriend (lucky bastard).
In The End, There Can Be Only One Conclusion ... APPROVED!