If in a story, where a vampire and a human have sex, and the human has fully and clearly consented to the sex and continues to do so enthusiastically during the sex and is aware that he is having sex with a vampire, but then the vampire bites him, explicitly unconsensually, during the sex, would you classify this story as non-con due to the allegorical nature of vampire content as regards sex, and because, duh, the human didn’t consent?
I mean, obviously, it’s a violation of consent, and consent to one act is not consent to all acts, but would you say “Yo, vampires, horror, duh” or would you say this is non-con sexual content that must be warned for?
And is your answer different outside a fandom context as opposed to inside a fandom context?
I think I would only label it non-con if other elements of the sex/story were kinky. It’s the difference between physical and sexual assault —if the vampire was punching you and it was hot, and then bit you and it was assault, I would classify that as kink-turned-non-consensual, and tag it as non-con. If you were doing some sexy sweet lovin’ with the vamp (or hell, even rough but not explicitly “kinky”, if you get the difference) and he bit you, that’s just the vampire physically assaulting you like some sort of giant bat-douche.