This is about 90% true, with just a couple of incriminating details obfuscated just in case.

She said she wanted to go shopping. She had been a brat the night before, and even though she had taken her punishment like a champ, I was still disinclined to be generous.

I made her promise she had to be extra good. I told her that if she wasn't I was finally going to take that little round ass of hers. She was terrified of anal, beyond any sense of reason. So even though it was the hardest of hard limits, the threat of it was especially useful to keep her in line.

She promised.

In the parking structure of the mall I made her take off her panties and ride me. I didn't allow her to cum, I said that was for later. I just wanted her to feel that thrill of being exposed. Oh so that I could cum onto the crotch of her panties and make her put them back on. She had been a brat after all, and humiliation is Daddy's prerogative.

Eventually, after several stores, I told her she had to go sit in the food court as straight as she could, and that she wasn't allowed to talk to anyone but me.

Once I could see she had complied I went back to a couple of shops and purchased a black lace bra, matching panties, a sheer blouse, and a skit. I took them back to her and told her to go to the restroom and change into her new clothing. We were going to go out to dinner and I wanted her to look good for her Master. I told her I needed something from the apartment, so she drove back worried we might be late. As soon as I got her in the door, I hooked my hands into the gap between buttons and flung my hands open. Buttons flew everywhere and the blouse had already torn.

My hand went into my pocket and returned with a knife. A flick and it was open and to her throat.

"Who owns you slut?" I asked.

"You do, Sir" she replied, the call and response complete.

I kicked her legs apart and my blade went between her legs and cut the crotch out of her brand new panties. The honorary fabric now serving none of its supposed purpose.

I flung her over the table, forcing my cock into her pussy and felt it get wet around me. It was hard and fast, fucking and not making love, but she came quickly in shuddering waves making guttural sounds that were beyond words.

I pulled her back up to her feet, told her to get a new blouse, but that she wasn't to change her panties. We had to hurry, and I wanted her cunt exposed for the end of the meal...