Okay, how will author-san manage to get out of this one? There's no way they're actually going to have sex, I suspect the inevitable interruption will be someone abruptly barging through the door. Another possibility is one of the two inexplicably falling asleep immediately...
Hiiragi: Do you think of doing those things with me?
Kotori: Lewd things? What, hold hands and take you home at weekends to meet your mother?
Lt. Flashheart: No, you git, she means get inside her five times a night and take her to heaven and back! Woof!