I didn't much appreciate his brusque manner, or the way he demanded that the procedure be done with me naked. ("If you're going to be showing your bit... to everyone, you'd damned better be ready to do it in a doctor's office." I bit my tongue, rather than tell him that he could at least ask nicely.)At least he was efficient. The procedure may be new, but the equipment for it all is already in place, and he knew his way around it. After he pronounced me in good health, he implanted an enhanced. Two weeks later, I woke up to slaps and her sitting on my chest without a piece of cloth on her body. That was how she had decided to wake me.She: Strip and get on all fours like a dog.Me: Yes, Mistress.She: Do you remember on the first day I told you that I wanted to see how far it will go? Today, I am going to test your limit. I will go to the bathroom and you’ll follow me on all fours.Me: Yes, Mistress. (Not knowing what I was agreeing to.)I watched as she packed her ass to the bathroom and. His head snapped up from her tits to her face.“I’m serious. Go ahead. You’re going to jerk off to them, you may as well have a picture of them.”Please don’t wake up, he thought, assuming it all had to be a dream. There’s no way he could get so lucky. She had to be old enough to be in college, and he couldn’t get the time of day from girls his own age. He lifted his butt, in order to reach his phone in his back pocket.Sarah’s eyes suddenly dropped to his crotch, and she drew in a gasp. “Oh. Soon, she was twitching and she squirted all over my face and I had my mouth open.We layed still on the bed, both of us waiting for her to get back to normal.I went back to my initial position to continue kissing her.Once the sensation passed a little, she said "I cannot leave you like that, with the blue balls, especially after having done something that noone has ever done to me." She undressed herself while I did too and she took my dick in her hands.Stroking it slowly until it reached rock.