@Doomroar I'd say rather for some straight women in general, lol. But one way or another, even 40-50 years ago, teen boy's group masturbation on a rare Playboy wasn't something unusual. Millenials and internet really kills many things.
@Doomroar Dude, seriously? With the same logic, you could demand from me proof that before the Internet, children often walked on the streets. These two are completely pure virgins and in Japan it is not so easy to get an illegal item, especially for a child. Not to mention the fact that the author needed a fan service.
@Doomroar Well, as people often say in my country, "If the plot had developed logically, the plot would not have happened." But anyway, I still remember what my fap content looked like in the pre-internet days ... lol, now I wouldn't even say it looks exciting.