"I have a better idea." you say. you then walk up to Tiffany and grab the bottom of her shirt and pull it up, leaving you topless, you take Tiffany's hands and then take them to your boobs, letting her hold and grope them, as you let her pleasure you, you reach to the hem of her pants/panties and pull them both of, leaving her completely naked, you do the same to yourself and then you feel a sudden lurch in your body and you tell the girls something. "Guys, there's something you should know. today, when I was shopping I found this cool serum collection, probably just drugs, but, they are supposed to take affect at night so, let's see if they work." suddenly, fur grows over your boobs and vagina, then you sprout a large fox tail and grow fox ears, your lower legs also grow fur and your hands become paws. "It worked!" you squeal. "The serum is a permanent effect and it takes effect every night, I got four different serums, so you can all try. What do ya say?"