As Jenny arrived at her room, the cramps she got intensified. Getting ready for whatever awaited her, she hastily threw all her clothes onto the ground, before falling onto her bed. Suddenly she felt the pain concentrate at her back, just above her ass. Suddenly a fleshy lump was pushing itself out of her back end, the pain intensifying as new bones formed, giving her tailbone a new purpose. Staring at the mirror, she saw long strands of fur grow out of her tail, and her blonde hair darkened, taking on a deeper shade of yellow, just short off orange. The hair on her tail grew very voluminous, reminding her off the one she saw on the Kitsune. The tip of her tail was a very pretty white, reminding her of the snow you'd see on a mountain.
As her tail reached it's full beauty, the pain returned, this time on top of her head. She panicked, as all of the sudden she could no longer hear her surroundings. The worst headache imaginable set in, as her skull slightly reformed to move her ear canals to the top of her head. A pressure built up atop her skull, as new furred fox ears grew in, connecting to her ear canals. Suddenly, she felt like she could hear everything more sharply and knew where the sounds where coming from. Her ears almost moved automatically, picking up even the slightest noises around her.
As if to snap her out of her amazement, she felt her hips, bust and ass grow. Previously she had B-Cups and a fit but slim butt. Her chest swelled as her chest grew, nearing D, but stopping just short of it. Likewise, her ass and hips expanded to better fit in with her now full yet nice looking chest.
Just as she was happy about her new form, the last and ultimately most important part about her transformation set in - she was still a futanari who had the Itch. She felt plenty of new sensation on her average 5 inch penis, this time it wasn't painful, but instead felt pleasurable. Her balls slightly increased in size, reaching the new size of a pair of tennis balls. A light pelt formed on her balls, covering them up to look rather soft.
Next, she felt her dick starting to lengthen, following suit. As it slowly grew, giving off ab erotic sensation, the foreskin slowly retreated, as her dick became highly sensitive. Before disappearing completely, the skin thickened and became a sheath, growing a pelt in very similar appearance to her ball sack. Her pink dick kept lengthening, the tip growing to be less bulging, instead becoming pointier. Meanwhile the base of her penis became even bigger in diameter than her sheath, forming a canine knot, pulsing and awaiting action. At last, small barbs formed along her penis, increasing the pleasure she'd get from it enormously. Her dick finished with a knot of a inch length, and the rest of her dick going in at 11 inches, totaling an impressive 12 inches, resembling a combination of canine and feline genital.
As her changes finished, the new fox futanari began stroking her new massive member, with one hand groping her full balls. She could feel the barbs rubbing against her hand, slightly bending as her bare dick came closer and closer to the edge. After a lot of loving strokes, her dick started spurting a considerable amount of cum on the mirror, thankfully making the clean up easy.
Her changes were vastly different from other girls with the Itch. How will her story progress?