Don't get greedy.

You decide to quit while you're "ahead." Well, quit while you're getting head, at least.

"Are you ready to receive $5500 and my load, Kayla?" she responds by deepthroating your dick, making delicious gagging noises, with drool pooling around your balls. You feel them tighten up, and you clap a hand to the back of her head.
"Here it comes..." you almost whisper as your cock begins to pulse... "ahooohooah....." she's making swallowing motions with her throat, and it's rubbing your cock head as you pulse a sizable load into her. She gags a little, but swallows the cum almost as it emerges, as if your dick is a straw. The gulping noises are absolutely obscene. Jesus....Frank never stood a chance against this girl. No wonder he was going to leave his second wife for her. In this moment, you can't clearly say that you wouldn't.
She finishes up, busily redressing, and she gives a lewd little burp.
"Guess I don't need my lunch, now." she winks. "So...you'll..."
"Yeah I'll transfer the funds tonight."
"And...this was a one-time.."
"Yeah, totally."
You stare at her perfect ass as she leaves, though. Maybe she'll get greedy, and then you can take a stab at more.

You head home in the Javelin, contemplating your illicit deeds. Maybe you really are Frank's son in more ways than one. The thought fills you with a mixture of emotions. Exploiting Kayla for a little dirty blowjob had been so easy. You hope, somehow, that it doesn't get easier to do things like this.

You return home, cursing the amount of time you've wasted at the office as you hit an unexpected traffic jam. You're going to be late getting home, now. Jenna's gonna be hella pissed. Even worse, you realize that you didn't gas up, so you spend another twenty minutes trying to maneuver your way into a busy gas station. By the time all is said and done, you pull into your driveway to the sight of everyone on the lawn, hugging and greeting each other. God fucking damn it. You had wanted to be home when they got here.