You also forgot to mention . . .

. . . the Twilight series. Bella wants to be converted to a vampire, but for various reasons Edward refuses, or rather, postpones the event until the time is right. The analogy there between MAPs and kids should be easy to spot. Speaking of vampires and pedophilia, have you read Octavia Butler's book Fledgling? There are other stories where vampirism and pedophilia overlap. Let the Right One In is obvious, but there are some manga that do as well. I will have to look them up though; I forget the titles.