"I don't think you can safely drive home" observed Gisela. "You should come back to my hotel room and sleep it off."
Kevin's unsteadiness as he got off the barstool confirmed at least the first part. The two walked arm-in-arm to the hotel next door.
They kissed outside Gisela's room.
"You still don't remember me do you?" she asked as she unlocked the door.
"Do you hold it against me?"
"No, and besides you'll remember soon enough."
She led Kevin into the room, pushing the door shut behind her. As soon as the door was shut, they were making out. First against the door, then on the bed. Hands were soon roaming, but Gisela cut that short by announcing "This room has a hot tub."
She hopped off the bed and beckoned Kevin to follow her.
Flicking on the lights in the spacious bathroom revealed a jacuzzi with room for at least two. The water was already roiling and bubbling.
"Just watch" she instructed.
Gisela walked toward the hot tub and let the sundress fall to the floor, revealing that she was wearing nothing underneath except the necklace.
Stepping into the water, she let out a deep sigh of relief. She turned at sat on the far side of the tub, facing Kevin. Then she removed the necklace, setting on a shelf within reach. Then she laid back and relaxed, her pert breasts enticing across the room.
But Kevin's attention was soon drawn to Gisela's feet - or what had been her feet but which were now changing color and shape and hanging over the side of the hot tub in a way that didn't seem like it should be possible. Her feet soon connected at the heels and flattened out into a golden tailfin.
Kevin took a couple steps closer so he could see into the hot tub, where despite the bubbling water it was clear Gisela's legs were now a golden fishtail. She was a mermaid.
The transformation complete, Gisela let out a soft moan then opened her eyes to look at Kevin.
"Your fantasies have come true. Do you remember me now?"