Recoiling at the taste, Lily drops the empty vial and starts coughing. She immediately started to feel sick and closed her eyes as she panicked, thinking of all the things she may have just drank. Opening her eyes, she noticed her brown hair starting to look lighter in color. She looked at her hand, realizing that it seemed quite pale. She felt a tight feeling in her chest and looked down to see her shirt expanding as her breasts grew larger. Stumbling down to a mirror, Lily took a closer look at herself as the sick feeling started to pass. Who she saw couldn't have been her, yet she knew deep down that it was. Looking back at her were two red eyes the color of rubies. These eyes belonged to a very pale girl with chalk white hair that had a slight wave to it. Opening her two now black lips revealed two of her front teeth that had into small fangs. Her face wasn't the only thing that had changed, however. Her previously B-cup breasts had grown significantly to the point where her shirt no longer comfortably fit, and was probably ruined from being stretched out. Her new breasts were huge, an E-cup at least. Her butt had also gotten slightly larger, but other than that, the rest of her body was much thinner now, and she was already quite small from the start. Alarmed from all of these changes, Lily started to cry again.
"It didn't work", the man said glumly.
With a surprising new rush of speed, Lily grabbed him by the neck and pinned him against the wall. his glasses fell off, revealing glowing red eyes, quite similar to Lily's.
"Didn't work?" she growled. "You made me into a freak! You'd better fix me now!"
With almost superhuman strength, he threw Lily back into the wall.
"What I meant was that the concoction didn't fully work. It was meant to turn humans into vampires, but you only partially transformed. Your body changed, but you can't transform into a bat, and you can't pass the vampire traits by biting. You did drink the potion, however, and for that you can go home." The vampire helped Lily to her feet and opened his door.