Bella, who insisted on matching Lucius drink for drink for whatever else earlier, is considerably less likely to come to her senses anytime soon, in part because she isn't nearly as much of a drinker as he is, and in part because there is less of her to go around to begin with.

She reaches out to Draco, then, a delighted smile on her face. The kind that would be nice on another person, but considering that he's only ever seen her not refuse the touch of someone she considers 'lesser' in her twisted worldview usually saw that person dead, it's probably not all that convincing. Well, it's just his coat she is touching, but the movement has her sleeve slip up enough for him to see ... nothing. However out of it she might be, she is still managing to keep the concealment charm up.

"Then you should join us. The night is still young, isn't it, Lucius, darling? We should all live a little."