Jewels. Watches. Designer bags. You craved just about anything that shined. Not that you couldn't afford some of those nice things, but stealing them just gave such a thrill.
You'd started out as just a petty thief, stealing small, inexpensive bracelets off women who'd walk by you on the busy streets of Gotham. But, as you can imagine, that got boring pretty easily. So, slowly, you'd worked your way up to bigger and better things.
Expensive necklaces. Diamond earrings. Sapphire rings. Auction paintings. You couldn't just waltz right in to thievery the way you walked into men's hearts with your charm and looks, so of course an alter ego and costume had to be made.
In and out, like a black cat is what they always said about you. And thus, Catwoman was created. After all, maybe you could use that leather paried with your looks and charm to your advantage. With the Bat, you certainly could.
You and Bruce played the same little game almost weekly. You'd steal some pretty jewel. He'd chase and confront you. You'd suggest a compromise of sorts and get frisky. Then, you'd get let off the hook if you promised to behave. But, we all know you never did.
"Cat." The Dark Knight's voice rumbles amongst the wind of the city's night sky as he appproaches from behind. You could practically hear the dissapointment, albeit laced with an unferlying hint of excitement, while he approaches you from behind on the rooftop.
You hadn't even stolen anything that valuable this time! Just a pretty ruby necklace from one of 'Gotham's Elites' who could probably afford to buy plenty more of them, anyway.