Disclaimer: All of the following characters are over 18.
It's late. You hear knocking at your office door. It's me, surprising you at work. You told me earlier that day, that it's a boring shift today and I thought you'd like some company. You let me in, leaving the door open. I have a huge grin on my face, my eyes sparkle. You don't know that I'm almost naked under my dress, yet. The tiny thong is almost nonexistent. No bra to be found on by body.
I kiss you hello, place my hands on your chest, slowly pushing you backwards until we reach your desk. Without words I tell you to sit down, and you follow my wish. You sit down, legs spread a little. I kiss you again, let my tongue slide into your mouth, bite your lower lip gently. You growl. I spin myself around and begin to wiggle my ass against your crotch. I can feel that you're already rock-hard for me.
I let my hips move around to a rhythm that's only in my head. Your hands find my hips "Nuh uh," I say teasingly... no touching allowed yet... you grunt, but behave. Your hands grab the chair. I start to move my hips again, going down, grinding on your crotch. I pull my dress up. Slowly, so slowly. I can hear you gasping as I expose my bare ass in front of you. You let out a long moan and I spy over my shoulder. Your head is fallen into your neck, your eyes are closed tightly. Your hands grab the chair so heavily that your knuckles must hurt. My head spins around again and my hands find your thighs as I move myself up and down, back and forth between your spread legs. I shake my head, spin it around and wave my hair as I grind myself on your hard crotch.