I need some...Calibration

At this point, you aren't going to question anything. Why would you. If this is for real, you have basically died and gone to heaven.

Kristi immediately drops to her knees in front of you and crosses her arms behind her back.

"Sir, please insert your cock into my mouth to begin calibration testing. You can exit the procedure at any time, or reach orgasm to complete the procedure."

You can't help but laugh out loud while Kristi stares up at you, mouth open, tongue out. This girl, who you just met, has just dropped to her knees and asked for your cock to be inserted into her mouth to begin calibration testing?? Her earlier instructions come rushing back ... as rough as you want ... orally dominated... Orgasm to complete the procedure? While all these impossible thoughts fly around your head, Kristi is still on her knees, waiting.

"Sir? I need your cock in my mouth to continue." before sticking her tongue back out and staring up at you.

You stop laughing and get real serious, real fast. You yank down your pants and take hold of your rapidly growing member. If this were a dream, this is about where you'd wake up. You give your cock a couple quick strokes while shuffling into position over Kristi. Let's fucking calibrate.

Holding your cock in your hands you give Kristi a few good cock slaps on her tongue, feeling yourself harden. She moans encouragingly as you slide your shaft into her warm mouth, slowly, still getting harder. She opens her eyes wide and looks up at you, smiling around your dick while you begin to thrust in an out of this fresh little brunette's mouth. It's all the encouragement you need to switch into high gear. Your natural, perverted tendencies start to take hold and it's almost like Kristi can sense the change coming. You pull out and re-position her back against the desk and decide to fully embrace this amazing situation you find yourself in.

"Kristi, you said earlier that I can be as rough as I want. You should know I have a bit of a penchant for rough oral sex. Are you ready?"

"Sir, you should consider it a challenge to break me. I am your tool to be used."

Holy shit. Your cock visibly twitches. You decide to stop wasting time and test your new tools limits. You take Kristi's head in both your hands, and slam your cock down her throat. Your favorite. No warming up and no warning. She gurgles around your cock as you hold her head in place.

"My tool. My tool to be used. I am going to pull completely out and thrust all the way down your throat, again and again. Do you understand, cunt?"

You pull your dick out of her mouth as she coughs and gasps for air. With your dick hovering just in front of her mouth, she has no chance to respond as true to your word you forcefully ram your cock down her throat. Again, you pull out so the tip of your cock is on her lips, and while holding the back of her head ram your cock down her throat. And again. This time you don't let go as she chokes on the obstruction in her throat.

For the first time her hands fly out from behind her back and try to push you away. What a joke. This tiny slut couldn't push you away if the world depended on it. Again you start to laugh, causing her to lookup in distress, her eyes watering and slobber **** out around her lips at the base of your cock. Talk about pressing your buttons. A little whore in distress, a cock rammed down her throat. You feel that familiar sensation of cum rising up out of your balls, and you just go fucking nuts on Kristi's throat. Head in your hands, you ram her repeatedly down on your cock. Her nose hits your stomach, and you slam the back of her head down further. You release her up the shaft before just brutally slamming her back down. Your cock is covered in a slobbery mess and you decide you are going to plaster this little bitch all over her face.

You pull out completely and let Kristi attempt to catch her breath, her eyes still locked onto yours, her facial expression as easy to read as a children's book. She wants more. She wants more and you are going to give it to her.

As you rub your slobbery mess of a cock all over her face, you let her know exactly what she is, and what she is going to do for you, before sliding deep into her throat for a few last pumps.

"You fucking whore. You little fucking cunt slut. You are going to watch me blow my load all over your pretty face. I used your throat and now I am going to paint your face with my cum."

You look down to a fantastic sight as you pull out of her throat one last time. Still coughing from your **** of her throat, she is looking up at you, eyes open with her tongue out. Your first rope of cum covers her from chin to forehead, a thick string of hot white cum half glazing her right eye. She begs for more as you blow one of the biggest load you can remember onto her face.

"Sirrrr moooore cuuum, pleeeeease, a proper calibration needs moooore cuuuum"

You can barely process what you are hearing as your second thick white rope of cum blasts right down the middle of her face, in her nostrils and between her eyes, covering her nose. She is **** to squint as your third pump, the biggest so far, lands right in her left eye. Huge rivulets of cum are dripping down her face as your forth squirt lands in her mouth. Not just in her mouth, but shoots right down her throat. She unintentionally swallows and starts coughing again, which you take as an opportunity to shove your dick back down her throat. Always hardest right after you cum, you grab her hair and **** her to **** on your still pulsing cock and the load of cum that preceded it. Kristi's face is covered in your cum, and has your cock down her throat.

"Nose to stomach, slut. You wanted cum, you got it."

She murmurs something which you can only assume to be agreement while pulling her head up maybe an inch or two before slamming her back down onto your slowly softening dick. You slam her head down a couple more times before you flop out of her mouth. Trying to recover her breath, she looks up at you and motions for you to hang on. Laboriously, she manages her report:

"Sirrr. Calibration...Complete.

Dick length: Increased.

Hardening period: Decreased.

Cumshot rope length: Increased.
Cumshot rope thickness: Increased.

Refractory period: Decreased.

Start your adventure when ready."

Cum is still dripping onto Kristi's blouse as she squints at you from her knees, seemingly awaiting your next instruction. You are standing there in a daze, wondering how things could possible get any better then this.