Not very dark, but she does want Bella to suffer

"Bella," Peyton said with an evil smile. "Bark like a dog. On all fours."

"Woof!" Bella barked as she got to all fours. "Arf! Arf!"

"Now, I want you to go out and fuck...ten men. Have one cum on your face, two on your tits, two in your pussy, three in your ass, and the last two in any hole they want. When you go up to them, say 'I'm Bella the horny doggie! Please fuck me!' and howl like a she-wolf upon orgasm. And one more thing: crawl everywhere."

"Arf!" Bella said as she crawled out of the office.

Peyton giggled to herself, then turned to you.

"That made me horny..." she said. "Wanna fuck and maybe I can take you to dinner tonight?"

You were surprised at that. You were going to use yournpowers to fuck Peyton anyways, but she just outright asked you herself. A secret fetish for dominance, perhaps? Furthermore, she also asked to take you out to dinner...

"Sure," you said. "I have a spare bedroom in my office. We can fuck there. And I get off work at 7 for dinner. Does that work?"

Peyton nodded and giggled. "Sure does."

You take her to your office bedroom and you both strip naked.