I got an atlas of the human body as I was around 10 years old because I was interested in human bones and muscles and the last chapter of the book was about sex.
(Man, that sounds like the origins story of a serial killer...)
"Should we make a run for it"?
What, waste the opportunity given to you two by the Hentai gods (Or just her whims)?
Still, at first the glasses guy seemed like the type who wouldn't do anything simple due to his principles, as shown when we rushed to the toilet...But I guess actually seeing it happen in front of you can break many men.