Without warning, a scaly, serpentine crimson tail burst from the seat of Samantha’s pants, short and whip-like at first, but quickly growing longer and thicker. Stranger yet, her clothes began to turn to mist, dissolving outward from the tail. Her dark hair lengthened, turned strawberry blonde, and began to curl at the ends. Bulges formed behind her shoulders, straining a shirt that was already not long for this world. Her face blanked, the emotion flowing away… and then crimson flames began to pour outward from her eyes.
"WOW that's wierd but amazing, Hey Amanda you should try this"
Amanda got a huge headache and her temperature was still rising. She took her jumper off completely and then took off her tank top.While she was bringing her hands up she noticed that her nails seemed thicker and longer than earlier. She looked closer and saw that they were claws!
Her claws had finished growing and she felt something touching her shoulder. When she felt what it was she realized it was her hair. It was growing a lot and becoming a dark shade of red.
She felt a tingling on her skin, she looked at it to see her skin turning a dark crimson. Amanda got a headach as two horns 8 inches long grew out of her forehead. She didn't notice that she had grown to 6'5".
The final changes to the two of them were that they felt their spines extending, rather painfully, into long and slender tails that had a spade like end. Both of their upper backs also had two new additions as bat like wings sprouted from the shoulder blades and unfurled into a 12 foot wingspan.