Both girls looked at the night sky as the moon turned full, that was the moment when Selena proceeded to get undressed to not rip her clothes and use the brush.
The changes were very fast, almost immediately Selena used the tool she felt how her body began to become taller and a little more muscular, black and orange fur began to spread through all of herself but the interesting changes just started. Her chest grew two extra pairs of breast below her original one resulting in six breasted chest, her legs turned skinny with claws and black fur just like a bat legs, her waist to her head was covered in orange fur, her arms extended as her fingers grew larger turning into bat wings, as a secondary effect she grew another pair of black furry arms with claws instead wings, finally her face was completely covered in orange fur, her nose transformed into a black snout, her teeth grew into fangs, her ears were more fox-like and moved above her head as her head extended forward like an anthro fox head, resulting in a fully mixed fox bat anthropomorphic girl.
"What do you think" Selena winked Tatiana extending her wings and showing all her body.
"You turned into a freak, but I love it!" The vampire girl exclaimed, "I thought it was gonna be worse".
"I thought that too, but I feel really powerful right now! And sexier~".
"Awww" Tatiana blushed, "we're gonna have lots of fun my sexy pet!" She giggled.