Anything in my area of expertise

"I can do anything you want me to, within my area," she replied.

"You kinda said that already, but what does that mean?" Eli replied. "What is your 'area'?"

"Why sex, of course," she replied happily, bouncing in place a little. Seeing Eli's scowl at that answer, she tried again. "Any wish you have, any change you desire, however many changes you want. As long as sex is involved somehow, I can make it so."

"You're kidding," Eli replied, staring at her wide eyed. "Anything anything?"

She giggled again. "Yes, anything. Just remember, it has to involve sex and if it's too big you might have to wait a bit for the next change, and maybe pass out a bit."

"But why sex?" Eli asked. "you can do anything but sex has to be involved? That's kinda weird."

"How should I know?" she added, shrugging. "The rules are the rules. I just know. Not sure how. Most of everything else I know came from you, but the details about that are just kinda there."

"OK leaving aside how weird it is, that is a limit," Eli replied. "How does this work? If I wish wrong I get a penalty? Do you twist it?"

"No, of course not," she replied quickly, emphatically shaking her head (and other parts). "If it's out of my area, nothing happens. At worst you might be in an awkward situation. You could be knocked out for a while if I have to use too much of your Odo at once, but nothing bad otherwise, at least far as me."

"Odo. You mentioned that before. What it is?" Eli asked.

"Energy. Power. Whatever. When I changed my outfit, I used just a drop, so you didn't notice. But when I was created, that used a lot, which is why you were knocked out for an hour," she explained. "It's nothing bad. You have a certain amount, a large amount which was required for me to be created, and normally you don't even use it. If I take a lot it makes you tired, but that's all."

"So the more I ask for, the more... Wait did you say an hour!" Eli replied. He frantically pulled out his phone, to see quite a few missed calls and texts. "Oh man my parents are freaking out! Mom's on the way over, probably to make sure I didn't drop a cabinet on myself or something!"

"I will make sure nothing bad can ever happen to you," she chimed in. "I can always do that, even if it's not about sex."

"That's nice but my mom is gonna kill me when she get here and finds me with a naked girl!"

Inspired by the works of 800lbgorilla, Joe Brolly, BebopJet, NukeEmFromOrbit, and others.