With Jess distracted by her impending change, Mary was able to search through the vials to find a away to reverse her chocolate state and restore her missing hand. In the meantime..
Jess had fallen to the floor as the changes began to overtake her. The first thing the noticed was that she was unable to move her legs. Then suddenly her arms ceased to function. She could still feel them somewhat but she was unable to move them at all. Her limbs were as limp as wet noodles as she struggled and writhed on the floor.
"What did you give me?" Jess asked as she rolled over onto her back.
Mary did not answer as she was still searching for the proper vial to restore herself.
Jess tilted her head to look down at her body as she lay helpless on the floor. Her arms and legs became totally numb while the rest of her body seemed fine, for the moment. She heard a soft thump and looked down to her feet. One of her shoes had fallen off and lay on the floor beside her foot. Suddenly the other fell off aswell. Jess noticed her socks had become loose and her legs seemed to be getting shorter.
"What's happening?" Jess moaned as she looked over at her motionless arms. They too were getting shorter, and thinner. Within moments her fingers had disappeared and her arms were gone up to her wrists. Her watch had fallen off with nothing to hold it any longer.
She looked back down to her legs and noted that her feet were gone, her socks had fallen off as they had nothing filling them. Her legs were gone halfway up her shins.
"What am I becoming? Mary help!" Jess shouted in a paniced voice.
Mary ignored her as she frantically tried to find the vial she desperated needed to save herself.
Now Jess' arms and legs were totally gone, disappeared into her own body somehow. Her body began to convulse, her back arched pushing her chest upwards and breasts outwards. She let out a long moan as her hips began to collapse in on themselves. Her shorts started to slip down her narrowing hips. With no thighs below that her shorts quickly found themselves empty on the floor. Her panties slipped off aswell, her pubic hair had fallen out now and her vagina had shrank but was still there.
Her chest heaved and she began to sweat. Her nipples hard with arousal as she arched her back again and cried out in passion. Jess' chest began shrink, her remaining torso was becomming thinner, her breasts deflating. Within a few moments her body had become as thin as her neck. Her spine lengthened and her body turned green. Scales developled all over what remained of her torso. Now looking like a snake with a human head Jess turned over onto her belly and slithered out of her shirt and empty bra.
"What did you do to me.. you've turned me into a ssssss.. a sssssna... sss" Jess was unable to finish her sentence as her tounge suddenly thinned and split at the tip into a forked serpents tounge. Her teeth fell out of her mouth, replaced by narrow fangs. Her eyes became slitted and her hair fell out of her scalp. The changes finished with her head shrinking and flattening, stretching and widening until she had completely turned into a snake. All that remained of Jess' humanity was a pile of clothes and hair on the floor.