"I wonder what it would be like to go all the way" Mary thought as she drank a few more drops from the "rat" vial. It still had the same nasty taste, but for some reason, she didn't mind. She then went to the kitchen sink to wash her dishes, but something instantly didn't feel right. As she dragged her tail to the sink, she felt a tiny prickling all over her skin. "What the...." she said. Mary then writhed in pain as she realized what she had just done to herself.
Small pores erupted from her flesh as white fur emerged. Mary started scratching herself because the itch was too much to ignore, but by then the fur was rapidly spreading all over her body. "Okay, this is just too unreal" Mary thought to herself. "I must go back to the way I used to be." She used every ounce of her energy to resist the changes, but nothing happened. Her tail remained there, and her D-cup breasts were shrinking. The pain of the fur sprouting had become too much to bear. She clutched her chest in an attempt to reverse the process. The fur had grown long enough to tickle her clothes, but Mary was unable to do anything because her arms were shortening. They were being sucked into her body as she watched helplessly. "Must......become........human.........agaEEEEEEEK" as her vocal cords disappeared. "What am I going to do now?" Mary thought. Her legs also shrank as the kitchen sink seemed to loom tall over her. The soft skin on her breasts turned squishy and then white as the fur swarmed over her. Meanwhile, as she shrank, she slid out of her tight top and her skirt. But because her legs were shrinking, she couldn't stand erect anymore. She fell face first onto the ground as the fur continued to grow on her. "What's going on?" she thought as her formerly human brain transformed into the mind of a rat.
Her face bulged out in a sickening matter as her nose shrank into a pink dot. Mary felt an awful pain in her face as whiskers erupted from underneath her nose. Her ears were moving up the side of her head and her eyes were shrinking, narrowing her field of vision. Her knees reversed direction as she struggled to grasp her last moments as a human. Everything she worked hard to get in her life was going to end because she foolishly drank the rat vial and her body had painfully transformed into a rat. "Goodbye, world" she thought as her new brain took over, pushing aside her human memories.