You know how in H-manga and doujinshi, the girls oftentimes are like, "Make me pregnant!" or how they pretty much they always want them to come inside? Oh, it's not about claiming the girl or whatever, it's secretly the Japanese government propagandizing for otaku or whomever reads them to try and procreate to help solve their population crisis. Also, if a girl happens to read it, they might be like, "Hm, getting pregnant; now that sounds swell."