Katy had fallen asleep nude and trembling from the weird, even by her standards, she rolled over and was unable to sleep. Something seemed to be protruding into her back, above her buttocks. A small numb, then she realized it was a tail!
She ran and stood in front of the full length mirror a two inch long numb with hair was protruding from the small of her back. Her teeth had grown sharper, particularly her canines. She also noticed that she had her normal breasts but also small numbs in two lines went down her stomach. Her nose was somewhat brown and wet.
The tips of her ears protruded above her hair. Cal reported similar problems with his chest hair and his "big guy". Worse the bite marks from Sarah had somehow scared over leaving a messy, ugly wound on her forearm and on Cal's ankle. Together they plotted their revenge against their adopted sister.