Pansy & Neville
Pansy had had to leave Draco eventually; there was more mingling to do. She'd made a round of the ballroom, sipping at her champagne, and making sure everything was going just perfectly. She was keeping her eyes on several people she was sure hadn't been invited initially, but this was hardly the time to make an issue of that. Besides, as long as they behaved themselves, everything was going to be just fine. She wasn't going to let anything ruin Daphne's night.
At the moment, she was making the rounds with Stephen's mother, chatting to all of her aunt's friends and associates. She wasn't quite certain why her aunt had attached herself to her all of a sudden,; they were hardly close and their family relation not exactly paraded around. However, she found she couldn't get rid of the woman without being unforgivably rude.
When she saw the direction they were heading in next, though, she did have the urge to break away. Neville Longbottom and his grandmother were standing at the edge of the crowd, and he aunt was heading straight for them. By the time Pansy realized it, they were too close and escaping now would look cowardly. She wouldn't give Longbottom the satisfaction of seeing her run.
Pansy was saved from having to say anything by her aunt's cheerful chatter to who must be Neville's grandmother. She made sure to keep a blandly pleasant look on her face during the conversation, while doing her best to ignore Neville. That might be the reason it took her a minute to realize that the look of horror on Neville's face was less to do with having to stand and talk with her, as it was due to the fact that Pansy's aunt had just suggested they dance.
"We must be boring you dreadfully. Please, go enjoy yourselves on the dance floor. Neville, you could get Pansy a drink after, I've kept her talking far too long without refreshment."
Her tone of voice left no room for argument, not without making a scene.