She probably based that figure off the same thing happening to her when she was younger. She knows what's up.They don't need two hours. I'd say they'll last like 20 minutes tops but the other hour and a half would probably be arguing about who strips first and akutsu beating the shit out of ooyama instinctively when he touches her so two hours actually checks out.
FUCK SAFE SEX, BRUTAL HANDHOLDING BREEDING IS THE WAYPractice safe sex, kids.