Michelle sat puzzled as Shelby peeled off the flannel shirt she was wearing, and the khaki shorts she had on as well, standing now in the slightly chilly night clad only in her bikini top and bottom.
"Umm, Shelby, what are you doing?" asked Michelle, as the hair on her arms began to stand on end, and a chill of foreboding fear raced down her spine.
"You wanted....to...know..."Shelby began, her voice coming in ragged gasps, a hoarse accent to it that Michelle hadn't ever heard before,"...then.....watch....me.."
Shelby stared at her with eyes that glowed a luminous yellow, and held up her left hand for Michelle to see, illuminated in the firelight, and by the glow of the moon. As Michelle watched, she could see Shelby's false tips be pushed up and then fall off as new, razor sharp black talons sprouted from her cuticles. Michelle gasped, not wanting to comprehend what she was seeing.
Shelby smiled at her, now walking towards her in an odd and unstable gait, every muscle in her body visibly quivering as the transformation began in earnest. Shelby's smile began to widen to an unnatural degree, and sharp fangs began to protrude from her lips. Michelle began to walk backwards, not wanting to be close to whatever her best friend was becoming. The Shelby thing advanced quicker. Michelle quickened her backwards pace, but lost her balance, tripping over the exposed root of an enormous oak tree. The Shelby-thing was suddenly on top of her, pinning her to the ground.
"Soon....you...wolf...sister," it said in a gutteral voice, sounding more bestial with every word, dripping spittle on her face as it spoke. With Shelby on top of her, now Michelle could feel the changes she was undergoing as well as see them. Fine blonde hairs had begun to sprout on her chest, tickling against Michelle's neck. A wet popping sound had begun to accompany the muscle twichings now, and the thing that was her friend Shelby began to shudder violently.
Michelle saw her spine bow sharply upward, accompanied by a sudden spurt of fur on Shelby's back, and a sharp snap as the tie to her bikini top broke. Shelby continued to shudder violently, wrapping her arms around Michelle's shoulders, now grinding against her body in a primal fashion, no longer trying to make words, only a rough "Urrgh..urrrgghh" sound coming from her throat.
"Christ!" Michelle thought, "She's masturbating against me!". Even more disturbing to her though, was the dark subconscious pleasure she was getting from it. Horrified at herself, Michelle summoned all of her strength, and pushed the Shelby-thing off of her, rolling her onto the ground. Michelle struggled to her feet, finally gaining the opportunity to run, but found herself unable to turn away from the final stages of the change.
The Shelby thing looked up at her and snarled. Her whole body had gained around 150 pounds of mass, Michelle estimated.There was a certain dark eroticism in the way the flesh pulsed and bones stretched, she found it almost hypnotic. her already small breasts had sunken in slightly, but the loss of size had been made up for in quantity, as another four quickly sprouted down her torso.
The Shelby-thing raised her haunches into the air, digging her talons into the soft earth. Michelle saw a bulge appearing under the bikini bottoms, that still miraculously were on. Almost as soon as she noticed however, another audible pop, an they fell to the earth, torn by the force of the new tail that had sprouted.
The Shelby thing reched one taloned hand behind itself, and began to massage the spot where her fur grew thickest, growling now louder. Michelle grew acutely aware of the scent of musk, an odor which she didn't entirely find unpleasant. The more it rubbed, the faster the final stages of the change finished; the last few spots of skin grew covered in hair, her ears elongated, and her nose grew leathery and wet. In the final moments of transformation, her face stretched forward into a muzzle, and she let out a howl of triumph.
Michelle turned to run, not sure if she was more terrified of what could only be a werewolf in front of her, or of her still-erect nipples and slightly moist panties, and how her lingering arousal mirrored that of the beast.