The Priest and the Vampire

Alexander Anderson finds himself in an odd situation, he is well aware of the vampire, Alucard's, feelings for him but for the longest time he ignores them and thinks they will fade but they don't. Integra has passed away and the priest was given control over the vampire, which he long ago wasn't to happy about but has come to accept it over the years of working with the vampire. He finds himself slowly falling madly inlove with the vampire but once he starts letting himself fall for the vampire old memories resurface and their old past is unraveled before him. And he learns he's not as pure as he once thought he was and things go horribly wrong once he learns the truth about the past they used to share.
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Some ideas for this story come from the ideas of a person I watch on Deviantart