Vampire Joke?

Three vampires go to a bar in search of bloodlust for the night. The first one finds a cute blonde and tells the other two he's going to "eat her out". She laughs, and the vampires understand what this really meant, and laughed along with her. The second vampire finds a chubby, but affable young lady and decides he will take her home. He informs the last one about this and the vampires nod as they part ways. The last vampire is sitting at the bar when he sees a frazzled and blatantly b*tchy woman walking around. He stands up as if to leave and looks at the bartender and asks for a cup of boiling water when he gets back. The vampire seduces the woman and takes her to the bathroom. Moments later, he comes back.