This bratty is the boss's stepniece. You are sick of her behaviour. She comes to your office with a document one hour late, and comes in even though you are on the phone with your wife. But you can't help but staring at her ass, it looks delicious in those jeans. She caugh you staring! Now you can see the devil in her eyes, but just leaves with a cheeky smile.
After a while she comes back with a petition, she wants vacations and a raise. But before you can answer she jumps on top of you to grab your dick. It gets hard instantly. She touches it and grind her ass on top of it for a bit while she starts taking pictures of everything.
Now she has power over you. She makes clear you better relax and enjoy, she is gonna give you a nice blowjob in exchange for everything she asked, but if you say no, she will send all the pics to your wife.... I think you know what you wanna do...
Spoiler, you'll fill up her mouth with your load.