"I want you to find an inconspicuous object that you'd like to be spanked with. Leave it lying around your apartment where you'll see it everyday... and make sure to bring it with you next week."
You didn't tell me what you had chosen, but I figured it out almost immediately as you opened your bag. It was a large brush, almost two feet long, with a detachable handle. There was no way I could spank you with it while it was assembled, the head would fly off. The handle was flat and flared at the end to about an inch and a half wide; that would have to do. But being so thin, it might sting a little more than you were used to... I don't think I had spanked you with anything other than my hand at that point.
We spent the day distracted by other things. As the day was drawing to a close, you were probably wondering if I had forgotten about the promised spanking.
You were packing when I walked into the room, wearing only a bra and panties. "It's time." As you turned your head toward me I grabbed you and bent you over the side of the bed. You let out a girlish squeal of delight. One hand on your back, I roughly pulled your panties down. I reached into your bag and found the brush head and handle.
"This may sting a little."
I lightly tapped the fleshy part of your buttcheek and then brought the handle down with a THWACK!
You gasped and I gave you some time to let the feeling sink in. I smacked your other cheek, then again, and again, reducing the time I would wait in between each stroke. I randomly alternated blows all over each cheek so you wouldn't know where the next one was going to hit. The handle left marks wherever it landed, and soon your entire ass was as colored as your vocabulary had become.
I stopped swatting you and lightly rubbed your stinging asscheeks with the hard bristles of the brush head. You were panting and moaning, but knew better than to ask me to fuck you yet. When I was done I'd let you know.
I lightly traced the marks on your ass with the brush handle, then slid it down the crack of your ass and down bewteen your thighs. I tapped the insides of your thighs until you spread your legs. Your pussy was so wet, it had started dripping down the sides of your legs. I rubbed the handle teasingly on the outside of your pussy lips, just enough pressure for it to slide along the juices. You moaned even louder.
"You're such a dirty little slut, just look how wet your pussy is. You like getting spanked, don't you? You dirty, dirty little girl. Stick out your tongue and taste how aroused you are."