At the sound of Jeff's final, decisive *CLICK* Jennifer felt a wave of heat wash over her. "Oh god! What..." she sat straight up on the mattress, her legs sliding down as she frantically fanned her face to try to dissipate the sudden flush suffusing her body. It wasn't helping though, and her previous shyness was apparently forgotten as she gripped her shirt and pulled it off over her head. Her chest was heaving in her modest cotton bra, and Jeff found himself shocked into stillness at the sight of his girlfriend panting topless on his bed.
As the flush finally began to fade, Jennifer slumped back against the wall with a slight thud. "Did I... did anything change? That was INTENSE, Jeff!" Suddenly, she realized could feel her shoulder blades sliding against the cool surface behind her - oh! it had just begun! she was definitely changing! Was Jeff making her older and more mature, like him?
Her feet and legs were tingling, and she hastily undid the clasp of her jeans and pushed them down and off in case she would soon be too curvy for them. Puzzlingly, her hips didn't seem to be expanding though, and her legs, if anything, seemed to be slightly shorter, and ... thinner? Her feet were simultaneously looking more stretched out, and as she watched her big toes slid up the inside of her elongating arches before dwindling to nothing! "What in the worrrld..." she growled, her throat rumbling as her vocal chords reshaped. Reaching down to grasp one of her distorted feet, she realized that they were quickly beginning to resemble the hind paws of an animal! She unconsciously squeezed and felt sharp pricks as her nails scraped over her sensitized skin. Dropping her extremity, she raised her hands in front of her face and flexed her shortening fingers, gaping in amazement as claws slid out of new sheaths where her fingernails had been!
Goosebumps raced over her skin, and as Jennifer watched, short, reddish-gold fur began to push out of every pore, quickly covering her almost-nakedness. Something fluttered in front of her eyes, shifting her focus and forcing her to realize that her nose and mouth were pushing outward, long white whiskers having sprouted from her upper lip as her head reshaped. Her tongue felt raspier, and as she prodded around her mouth she could feel sharper canines and molars filling her new muzzle. Her ears twitched, a tugging sensation signaling their changes as they elongated into points and shifted upward, flicking with new sensitivity as they picked up previously inaudible sounds around the room.
Something squirmed beneath her butt, startling a frightened "Meep!" out of her as a furred appendage pushed its way out of one leg-hole of her panties. Rapidly lengthening, an orange-striped tail flicked back and forth agitatedly as it grew to almost three feet long.
"Ohmrrygod Jeff!" her wide-eyes lifted from her changed form, pupils narrowing to vertical slits as she realized her boyfriend was slumped in his desk chair, his right hand absently rubbing himself through his shorts.