"Cool!" said Andrew. He looks gleefully at your transformed body. "I've always wondered what a werewolf would look like in real life."
You had always wondered the same thing, and now you know from firsthand experience. You bound around the room, enjoying your new body.
"Hey, can you still talk?" says Andrew.
You stop for a moment and try to speak through your muzzle. Then you get an idea. Giving Andrew a wolfish grin, you say one thing:
"Meow."
"Hey!" yells Andrew in surprise, as a jolt goes through his body. He starts to itch as you see course black hairs start to sprout all over him. He looks at you and chuckles, as his irises start to turn yellow. "Oh, ha-ha..." He grins, revealing his canines growing into fangs.
You step back as Andrew hunches over, a long, black tail ripping through the seat of his pants. As the fur covers his face, his ears reshape into points and move to the top of his head. Finally, he growls as his face elongates into a feline muzzle.
Andrew briefly took in his new body before looking at you. You look back. It was time to have some fun...