Rewind to how Ivy finally got the Bat to be hers

Batman had just got a call that Ivy had stolen a diamond from a museum and had now taken over Gotham park. He thought the diamond stealing was unusual as that's normally the sort of thing Catwoman did.

Batman arrived outside the park and grappled over the locked fence. He made his way through the park until finally he arrived at a large rose, which opened up to reveal Poison Ivy sitting inside, clutching the diamond. Batman had a soft-spot for Ivy. She wasn't as bad as the other criminals he had to deal with, and she usually fought for a good cause - it was just her methods that he disagreed with. So he decided to make things easier for her.

"Ivy, give me the diamond and come quietly and you won't get hurt." Batman offered.

Ivy raised her fingers to her chin as if in thought and said "Hmmmm... I don't think so."

Batman was about to run and attack her when all of a sudden, vines appeared behind him and pulled him back. He tried to break free, but they were too strong, and more and more vines were wrapping around him each second.

Ivy stepped off the rose and made her way over to her captive.

"Finally, you're going to be mine" Ivy said as she planted a kiss on his cheek.

"I've resisted your pheromones before Ivy, what makes you think this time will be any different?" Batman retorted.

"Because this time I'm not just using my pheromones," Ivy said "I've created a new spore. One that temporarily diminishes intellect. This spore will make you a dumb, horny jock long enough for you to succumb to my new pheromone plant."

She then held out her hand and blew the spores right in Batman's face.