I look up at you and say "what is my next task, professor?" You are still looking at me and I can see that your mind is working hard to not simply sprawl me across the desk and fuck me silly. "Please spread your legs wide. As wide as you can, in fact." I oblige, giving you a full view of my bare, shaved pussy, barely shaded by my skirt.
"Now that I have my specimen in view, I'd like you to do a little in-depth investigation for me." you say. "Your next task is to push two of your fingers into your pussy."
As these words leave your lips, heat bursts from my crotch. I reach my up to my mouth, stick two fingers in and suck, covering them in my saliva. I then take them out of my mouth and slowly insert them inside. They slide in easily and I watch you watching me the whole time. You need for me is increasing, I can see it in how you're looking at my fingers. You can see the slickeryness of them and I know you're imagining your own fingers covered in the warmth of me.
"Alright, now that you're examining, I want you to explain your findings to me, in detail. Tell me how does it feel, both upon your fingers and where your fingers are. Explain to me the thoughts running through your mind as you slip them in and out. This," you tell me "is your next task."
I ponder a moment how to word my response. I want to make it as amazingly tormenting for you as possible, but also honest. The words start coming to me slowly and I begin with "On my fingers, it feels wet, warm and electrifying. Like a warm summer night on a beach, walking through the water with the moon shining down." I continue with "Inside of me, it feels like a slight pressure thats building up to an explosion. Its simply waiting for an ignition to explode."
Now to explain my thoughts to you. "Well professor, my thoughts are simply this. I believe that you intended to give me extra credit for my efforts here, but perhaps I can even achieve an A+ for performance. You see, I've gotten myself all kinds of wet, wild and excited while doing your investigation and I think that its about time you come over here and fuck my brains out."
As I say these words, you come forward, biting into my neck and grabbing my breast, still in my bra. Your other hand joins mine between my thighs as your fingertip brushes against my clit. You lean me back on your desk and start to undo your pants. "Yes, you'll definitely get an A+ out of this class, pending the final exam." you say as you pull my hand away and pentrate my waiting pussy.
I grab the edge of the desk as you push into me, pushing back during your inward thrusts. I put my head back as your motions cause waves of lust, desire and pleasure to wash across my skin, penetrating me the way you are now between my legs. Your hands are again at my breasts and playing with the nipples through the material. Your speed increases, as I buck against you, feeling every inch as it fills me again and again.
You come inside me and lay against my stomach and chest. "You've passed the final exam, congratulations." is all you say as you slowly go soft still inside of me.