Megan, resting on her knees, looked up at the faces of her friends. They had just watched her, speechless, as she seemed to orgasm for no reason. Jennifer had a smug look on her face as she said, "I thought you might like that."
"Oh my god Jennifer," Megan smiled, "you have no idea how good this feels."
One of her other friends quietly asked, "What... What's it like?", her curiosity overcoming her fear.
Megan grinned evilly, "I'll show you".
Rising to her feet Megan spread her legs and pulled the front of her cheerleading dress up to reveal her panties - concentrating on her new organ.
Her friends gasped in surprise as they watched something slowly push out into her panties, causing a small wet spot and wriggling behind the fabric.
Megan stood fast against the wave of pleasure she was feeling, even the tinyest of movements was causing her immense pleasure. She didn't realize how sensitive her new organ would be, she could feel every thread in her panties as she ran its tip up and down the inside of her underwear. Not only that, but she could feel the tentacle sliding up and down inside her pussy as she moved it, stimulating her further.
The girls watched in astonishment as the the bulge in Megans panties grew larger and pushed the fabric aside...
Megan could feel every tiny sensation through her new appendage as she pushed aside her panties, willing her cunt-tentacle to grow longer and thicker. She looked at her friends, who stood gaping at her crotch and smiled, this was going to be fun...