I hope you enjoy this, it is all mine, my own, my preciou- No! We don't own this! Think of the lawsuits-URK! *removes knife* Honestly, just die already, this isn't Marvel where their characters never stay dead.
The Joker knew there was something special about her, and now he is sure about it. A witch, never had he thought something so wonderful could exist. The villain made up his mind, this chance was just too good to pass up. The Joker bent down on one knee, "Luna, we just met, and this crazy, so please join me in taking over the city, maybe?"
He looked up to see the blonde turned away from him. Luna looked up from the random rock in her hand. "Oh, I'm sorry. Did you say something? I was just admiring this amazing specimen."
"That's just a rock! Gosh, you are so stupid…" Harley Quinn said exasperated. Luna raised an eyebrow.
"I'm guessing you've never had a pet rock then, huh, Angry Badger? Shame. They make much better pets than avocados, and smell fresh for longer too." Luna smiled dazedly, losing focus in her surroundings. Harley took this as a chance to attack the oddball.
Before The Joker could do anything to stop it, Quinn had already swung her large, wooden mallet at the blonde. Luna calmly lifted her wand and shot a levitation spell at the hammer, stopping the weapon right in front of her face. She peered at it intently. "What a strange choice, and it makes no logical sense that you can even lift this thing."
"Stop criticizing fiction!" Harley yelled, shaking her fist at the blonde.
"I'll do that right after you admit to breaking the fourth wall." Luna smiled a little too cheerfully at Quinn.
"Wha? I break a lot of walls! You're just so… so insane! Like, really insane. Completely bonkers, off your rocker, insane." Harley actually looked concerned.
Just then The Joker decided it was time to scram when he heard the police sirens, -the cashier must have called them- not that he wouldn't love to stay and play with the cute, little policeman. It's just that he'd rather like to be the one to introduce Luna to this fun world. And attracting Batman wouldn't be ideal for that right now. "Alright, ladies! Let's go chat in my lair!"