Being kissed as a vampire feels a bit different than it does to be kissed as a human. He’s more aware of the warmth of Bruce’s lips and their texture as they move over his skin. He can feel the variance in temperature from his breath and without really thinking about it, tilts his head just slightly to give him the room to do it.

It’s completely inappropriate to the moment, but he finds himself wondering if vampires can have sex. And if they can’t, how easy it will be to stake himself, especially if he doesn’t have a functional heart in the first place.

Silent for a moment, Tony processes Bruce’s words before slowly turning around, careful not to break the hold he has on him. He needs to look at him for this, and it’s only once he can that he seeks his eyes and asks quietly, “Do you trust me, Bruce?”