Futa/Shemale themes, if that's not your cup of tea, you should pass. Thanks!
I was excited as always as my girlfriend Joan took me by the hand and led me down the stone steps into the lower level of the deserted downtown building that she had brought me to. Joan was always finding new and erotic ways of expanding my horizons. I gazed at her tight yet voluptuous ass swaying making her way down the stairs, her black latex pants showing off the curves of her body. I opened the heavy black metal door for her as we came to the bottom of the steps and then followed her inside this mysterious place.
After I entered, she closed the door and locked the door with a steel metal bar from the inside and gave me a brief kiss as I looked into her dark eyes. As I turned to look where we were, I saw that we were in a large stone room lit by torches lined along the walls with a single wooden desk up against the back wall. The desk was covered in different manuals and had multiple instruments laid out along with multiple vials and bottles filled with various indiscernible liquids.
Joan once again took my hand and pulled me towards the middle of the room and positioned me in the middle of a circle that seemed to have been painted onto the floor. There she looked deeply up into my eyes, smiled, and told me, "this night will be the wildest that you have ever experienced". She pressed herself into me as we kissed deeply, her 36-C breasts covered by nothing more than a latex bra.
As we broke our kiss she told me to stay inside the circle. As she walked towards the desk, I looked down and saw that the circle I stood within was connected to a larger circle with a star drawn within it. Joan picked up the large thick book resting on the table and stood in another smaller circle on the opposite side of the larger circle with the star.
She began speaking in some language that I had never heard before and that is when it all started. Suddenly we were surrounded by a blue light emanating from the circles drawn on the floor. Joan continued chanting as I felt the air within the circle become thick. It felt like being submersed in water but easier to move within. The edges of the circle became walls of light that I could no longer penetrate like being confined within a large water tank of some sort. Joan began chanting louder and suddenly stopped and slammed the book shut, her eyes wide looking towards me across the circles.
A large body began to form in between the two of us inside the largest circle. There was a blinding flash of light and suddenly she was before us looking down on me. She was at least 7 foot tall, naked, with large firm breasts and strong yet feminine curves. She had what looked to be rough, purple skin and eyes that glowed the same blue as the color of the light that had previously been coming from the circles on the ground which were no longer there. She stepped towards me and bent down, reached towards me and gently grasped my chin to bring my gaze to her eyes and stated, "you will make a nice play-thing." She then turned and moved towards Jane and said, "and for you, by bringing me such a gift, I will endow you with some of mine."
Joan's eyes then glowed briefly and elaborate artwork the purple color of the creature's skin inscribed itself on her body. Her breasts began suddenly began to grow and her body became impossibly disproportionate, with at least DD breasts, an impossibly small waste and flaring hips. She looked at me and smiled. Both women began walking toward me.