I opened my front door and was shocked to find Serenity standing there! It wasn't just that her prescence there, but the standing part. Impossibly, the mermaid I had met the day before was standing before me on two human legs.
"Serenity!"
"Hello, Melissa. May I come in?"
"Yes, please do."
You shut the door behind her. Her blue and green 'makeup' remained the same as the day before. She was wrapped in a large beach towel and I suspected nothing underneath. With legs she was almost my exact height.
"I see your changes have begun."
"You knew I was going to change! What's happening to me?"
"When we kissed, we made a kind of magical exchange. It allowed my tail to become legs like you have and why your hair, eyes, and nails have changed in a pattern similiar to my own. But neither of our current forms is permament."