The girls stood and watched, transfixed, as Megans panties were pushed aside to reveal a thick tentacle pushing out of her pussy. It was dark purple, almost black and glistened with slime. It seemed to shimmer a deep blue in the light, and moved with a serpentine purposefulness that was almost hypnotic.
With each passing second it grew longer and thicker until the base of it filled Megan's cunt completely, stretching her out as far as she could bear.
Megan felt her cunt stretched to the limit and willed tentacle to cease growing thicker, but to continue to elongate. She was nearly blind with pleasure. As the tentacle pushed out of her she could feel it rubbing along the walls of her pussy, stimulating her in a way a man never could. She had her eyes shut tight, but could almost FEEL her friends watching her. In fact, slowly she realized that she COULD in fact feel them - the tentacle was so sensitive that she could feel the warm air coming from their mouths as they breathed. It washed over her new organ like a warm breeze, she could feel as clear as day where each of them was simply by moving her cunt-tentacle about...
As Megan was becoming more familiar with her new organ, her friends continued to watch as the thick purple tentacle pushed out of her cunt, quickly growing over two meters long and 3 inches thick. Each time it moved they gasped with nervous wonder. It glistened and pulsed in the light as Megan moved it trough the air...