If so, which girl would you want to befriend, which one would you marry 'n which one would you have sex with?
(Note: I know that if you try to do this to an actual touhou girl she'd kill you (or Master Sparked in the face...)... , but hey!, let's use our imagination and think like they wouldn't kill us and what would be the case if it would be possible to do this with some of the girls.)
(CAUTION: Do not imagine this near Satori Komeiji or any Satori.)