I am writing this as a task for my Domme.
I straddle your thighs, just below your ass, so that when I lean forward to get closer to you I can feel your ass between my legs. I roll my hips into you as I press my bare chest against your back. My fingertips run from your shoulder, up your arm, and lace with yours. With my other hand, I tangle my fingers into your hair at the nape of your neck, combing it upward to expose the back of your neck. I lean down to kiss the back of your neck and notice the chills that run down your back as I do. I take my time placing kisses all over your shoulders, your sides, your ass, the backs and insides of your thighs. You're squirming under my touch by the time I reach the backs of your knees, but you wait patiently, knowing that I will eventually give you what you want. I kiss the back of your neck again and tell you to wait right there for me.
When I return, I kneel between your legs. I wrap my arms around your waist and chest, pulling you up so that you're kneeling as well right in front of me. I pull you close so that your skin is as flush with mine as possible. You turn your head so that your lips catch mine. You reach your arm back and bury your hand into my hair, pulling me deeper into your lips. I hold on tight to your hips, pulling your ass into me. You gasp a quiet "oh" when you realize why I got up before, not expecting to feel the strap on I was now wearing sitting between your legs. I can't help but smile a bit at your surprise.