Katy's moans of pleasure started to become howls as she collapsed onto all fours. Her fingers started to fuse, nails lengthen she started to scratch madly at her clothes ripping them to shreds as her breasts shrunk along with her body. Her bouncy b cup breasts became like mosquitoes bites as other sets of nipples appeared along her stomach. A tail appeared out of her butt as she tried to yank the collar off her arms were to short become forelegs.
Bones cracked as her body changed into a dog, she tried to then kick the collar using her legs but it was too late she was now a full size German Shepard bitch. The only sign of who she was were the traces of her auburn colored hair in her otherwise black fur.
"Holy Shit!" Cal had turned his sister into a dog.