Harley Quinn/Ivy
Harley kind of liked this whole being busy thing. Between shooting off fireworks (successfully, she would add, without catching anything on fire) and mixing cocktails for others, Harley didn't really have time to notice that she didn't really have a date for the evening. A fact that normally would have made her a tiny bit sad.
But she had plenty of people around her to distract her. In fact.. there was one person who hadn't distracted her enough that night. Someone she had noticed was missing, even with having her hands full. So Harley would mix up a special drink just for Ivy: a hibiscus cocktail. No flower garnish, of course. Harley would take a break from her bartending job long enough to seek Ivy out and personally deliver the drink.
"I know, I know, it's a champagne kinda evening, but we'll get to that - Here, just taste it, tell me whatcha think. Too sweet?"