"Easy! "Just work at it slowly and gently, it will slide in."It did, it was a very tight fit and that made the sensations even higher, but I couldn't ...ontrol myself that well, I pressed myself into her and she shrieked as another three inches entered her. I had enough composure to ease out of her a little and slap more Vaseline where it would do most good then eased my cock deeper inside her until, finally, she had a good 6 inches of me inside her.I eased myself gently in and out of her body. Nine or ten inches long and a couple of inches wide, it must have been. Pale, almost platinum in color. Of course -- it had been force-grown from a stem cell culture. And she was rubbing something glistening and creamy on it. Syntholube."The purpose of what comes next is to condition and train your sphincter and rectum for the requirements of a Sex Machine operative. Depending on the assignment, you may be required to have anal intercourse a dozen or more times in a single four-hour work. My brain was taking this all in…not even a glimmer of anything-deviant hit my mind. Instead I was relishing the experience.Moments later Bren stiffened, just as Heidi broke her embrace with Rolf…she grabbed my thigh and squeezed letting out a long squeal.It took a second or two…Heidi was done, she pushed forward. Bren’s still hard cock popped out of her sphincter.What the hell…I reached for Bren’s hard, slippery member and pulled it towards me. The hunger for his dick overcoming any thoughts of. ’ She laughed, and said, ‘Ooo, it’s not just a ride, it’s an adventure.’ I pulled out onto the road and headed for town. ‘Roll down your window if you want a breeze.’ She cranked open the window and inhaled deeply. ‘I can’t remember the last time I rode with the windows down. That’s a major health risk in L.A.. But the air smells so fresh and clean here.’ With one arm on the open window and the other across the back of the seat, Becky leaned her head against the doorframe, and closed her eyes..