Dan's skin felt very odd. He scratched at his forearm, and was horrified to see his skin flaking off. His pale skin then began to turn a more concentrated colour, a sort of orangey-gold, and he tore his clothes off. New flaps of skin began to grow from his body, resembling fish-fins, and his lips began to inflate.
His skin now scales and his lungs now gills, Daniel had been turned into an anthro-goldfish! An odd choice in theory, but then again, it was a pretty practical form to take. For Kat, anyway.
"Soon you'll begin to struggle for air". Kat flashed up a large bowl filled with water. Dan ran over and dived in. As he did this, his scaly legs began to merge, forming a long tail. His arms were as normal, but his hands were webbed and his skin was scaled.
"Now, let's have some fun..."