She promises him a fantastic reward for letting her go wild for a night.

Once they’d done all the clothes shopping she’d needed, which ended with a quick bathroom trip so Sarah could change into some sexy new clothes (a crop top and miniskirt combo, both in bright pink), she cuddled up to Tom as they walked through the store towards the entrance, thinking of how she could get what she wanted. “Hey, Daddy? I was thinking...maybe I could go out tonight? By myself?”

He looked down at her, and the reminder of the height difference between them turned her on a little more. “Are you sure that’s a good idea? I thought we were going to have fun with this, you and me.” Ah, he sounded disappointed.

That made Sarah giggle. “Oh, Daddy, you don’t need to worry about me! I’ll be totes okay, and it’s not like we can’t have more fun later, right? I’m like this until you wish me back, remember?” He still didn’t look convinced, so Sarah decided to use her trump card. “I was thinking, if you let me do this, I could pay you back with something nice.”

“Something nice?” Tom asked, his curiosity clearled piqued by the suggestion.

Instead of just saying it out loud, she surreptitiously grabbed one of his hands, brought it up her skirt to her panty-clad ass, and pressed his finger up to her sphincter, through the fabric. They hadn’t tried anal in years, and as much as Tom had been a fan of it, Sarah was always quite vocal about her distaste for it. But for some reason, the idea of him fucking her cute rump was sexy as hell. Some part of her, so quietly she barely registered it, even thought, ‘Even better than regular sex, that way this creep can’t get me preggo.’

Tom still made a show of thinking it over, but she knew he was sold now. Sure enough, he eventually capitulated. “Alright, alright, it’s a deal. But I expect you to deliver on that promise, missy!” She giggled again, laughing internally at the idea of this was part of a deal when she was totally willing to do it anyway. Plus, it was funny how her Daddy was so interested in fucking her butt, what a pervert. “So, where did you want to go for your night on the town, young and sexy?”