You give her a kryptonite surprise

You manage to lead the cat into the bathroom and lock it in there. It’s still hungry, but you don’t care and Power Girl will soon have bigger things to worry about.

You turn on the TV and find a news channel. In the two minutes she’s been gone, Power Girl has already stopped the villain. You turn the TV off and stand in front of the door.

Soon it swings open and Power Girl swaggers in triumphantly. “Well, that didn’t take long. It wasn’t even Vandal Savage, just some loser who is sick enough to enjoy scaring people. A few hours dangling from a flag pole should show him what it’s like to be scared.”

You hold out a small ring box and smile. “I got you something to thank you for making me your sidekick.”

The buxom blonde puts her hands on her hips and smiles snarkily. “It’s a little early for proposing, don’t you think? Do you really think I’d say yes?”

You open the box, revealing a ring with a large stone that glows green. “I think you’re going to be saying ‘yes’ to everything from now on.”

Power Girl collapses on the floor. You take her limp hand and slide the ring on her finger.

“Yeah, the ring is a bit theatrical,” you say. “I could have just used the rock without setting it in a ring. But hey, I like a little style. Don’t worry, you won’t be wearing it long. Just long enough for this to effect your system.” You pull out a small bottle.

“What…” Power Girl stammers, too sick to properly form the words. “What is… that?”

“Just a little formula I developed,” you say as you open the bottle and tip it into her mouth. The purple liquid runs down her throat with no resistance. “I’ve used it on several normal women to make them do what I want, but you’re different. You’ve got that super immunity. That’s why I needed to weaken you first, so it would take affect.”

Power Girl coughs, sending delicious ripples through her overstuffed chest. “You… you’re not a sidekick!”

“That’s right bitch, I’m a villain!”