Most depictions of Vampires have them as enrapturing their prey, without regard to gender.
The Vampire need not be sexual, but the prey is often shown to feel it as a sexual embrace, not just a life draining one. Sometimes it's subtextual, someones it's overt. But that Dracula kept poor Renfield halfway between vampirism and mortal... the original is a classic case of subtext reading... there are several which seem stretches... such as Dracula/Renfield being a closeted homoerotic relationship...
Vampirism is, at least in fiction since 1800, often used to subtextually examine non-heteronormative relationships. Interview with a Vampire comes to mind. As does Forever Knight.