Harley covered her mouth in shock as to what she had just done. She had swallowed the object that the Joker was after. Joker gave off an angry scowl, as he managed to get Batman and Robin to fight his goons, and walked over to Harley.
"Come with me, dear," He said in a deadly tone as he dragged Harley out of the museum and into their getaway car, a clown car.
Later, at the Joker's hideout, an abandoned theater, Joker dragged Harley up stage, onto a chair, where he turned his scowl upside-down.
"Harley, you know I love you, right?" Joker said in a friendly tone.
"More than anything in the world, Mr. J!" Harley replied with a big grin.
Joker's big grin eased slightly. "Then I hope you don't mind me asking you to COUGH UP THE TRINKET BEFORE I'LL HAVE TO CUT YOUR STOMACH OPEN AND GET IT MYSELF!" Joker yelled in her ear.
"I-I-I'm sorry, puddin'!" Harely frowned "I just can't! I've been trying to the whole car ride! Cut me some slack, Mr. J."
Joker sighed. "I wish I could, kido. I really do. But I also need that thing in your stomach."
Throughout this whole conversation, Harley has been ever so slowly growing in her seat, and Harley was just now feeling the chair she was on creek underneath her.
"So unless you can prove that you're more powerful than that thingumajig, I'm afraid I have no other choice." Joker said in a caring voice, but couldn't resist smiling.
Just then, the chair Harley was on collapsed, bringing Harley's big ass to the floor, and catching Joker's attention. Harley yellped and started to rub her ass.
Joker stared at her, now noticing that she was taller than normal, that she had just grown. Joker thought to himself for a second, and remembered exactly what the Statue of Eris was made for specifically. Joker realized that the statue could only be used by a woman that was just as evil and psychotic as he was. That's why she seemed to be getting bigger. That's when he realized that he really needed Harley. He had to use her to get what he wanted. He ran up to his now slightly bigger girlfriend and hugged her. "Oh happy day!" Joker lied, trying to warm up to Harley for his very recent deeds. "My little pumpkin is now a goddess!" Harley looked at him with a confused look, but before she could ask anything, Joker interrupted her. "Now finally comes the time where we can EXTERMINATE THE BAT!!! ...And his little sidekicks too," he joked. "Now, there isn't much time to waste," he grinned. "In a matter of time, you'll be bigger than Gotham, but before that, I have a great way to kill Batman!" Joker ran over to the other goons and whispered something in their ears. Half of them started bringing building supplies, machinery, and decorations to start making some renovations on the hideout, while the other half took off with Joker to go get the Dark Knight and his sidekick.
While Joker was gone, Harley started to grow again, but this time, she felt it. The goons building looked over at the growing clown as she started to moan softly in pleasure, as her hands rubbed across her body, and as her nipples became erect. As she grew, her costume started to become soaked with her own sweat, and a little with her other womanly fluids. For some reason, her costume was growing with her. As she hit the 10 foot mark, she slowly started to jab her finger into her right nipple, moaning even louder. Some of the other goons started to jack off at the sight. At the 25 foot mark, her ass and boobs had started to become slightly bigger than they were (compared to her). Her feet stretched out to the front of the stage, while her ass stretched out to the back. At 50 feet, Harley had stopped growing, her feet stretching out to the 10th or so row of seats. The goons wanted her to grow more, and more importantly, she wanted to grow more.
What happens now?