Nancy was understandably distracted as she listened to Joe's offer. What a day I'm having, she thought to herself. First Joe shows up in the office with a dog. That was odd, but nothing compared to finding herself suddenly inside her aquarium with her pet fish! Even that was not as strange as the fact that she had felt perfectly comfortable as a fish, "breathing" with her gills and swimming idly around with the others. She never forgot who she was supposed to be but somehow it just did not seem very important as she nibbled at flakes of fish food.
Now she was on a bed in what must be Joe's bedroom, her slim fingers exploring the line where her soft skin coverted to leathery gold scales. She had been surprised to find her fins converted to hands and at the return of her breasts. Like her first transformation, though, she felt strangely comfortable. She knew that she could live in the water if she wanted and outswim any human and most fish. Not bad for someone who could only dogpaddle this morning, she mused. She knew she should be upset about finding herself only half-human but instead she thought her tail was cute. The color even complimented her dark brown complexion.
With a start she realized that Joe was still waiting for an answer. She gave him her best smile and asked, "Can I see what I look like?"
Joe smiled at that request and waved his hand. Suddenly a large mirror appeared beside the bed. It was tall and long enough that it clearly showed herself and Joe. She gasped at the sight of her altered body. She did not see a woman with a freakish tail, but instead a gorgeous mermaid. She smiled a little as she noticed that her breasts were at least a cup size larger than normal, with very long and thick nipples, and wondered if he even realized he had done that to her.
Nancy took a long look at Joe in the mirror. He was young but not bad looking. He was staring in lust at her altered self and Nancy knew that this body had to be some fantasy of his. So much power in the hands of a boy. I'm lucky he did not make me into some slut. Still...if he can do this, what else could he do? Nancy shuddered a bit at the thought, her tail fluke flipping about on the bed and her nipples hardening. She realized that she knew exactly what she wanted to do.
Nancy reached up and drew Joe down into a kiss. He returned the kiss eagerly and she felt her tail curl a bit in pleasure. "Joe," she said after several kisses. "You don't have to bribe me with wishes, baby." She kissed him again. "I'll bet you have all sorts of things you want to try. Let's have some fun together, ok? I'll be your girlfriend and help you with your new powers!" She kissed him again, teasing him with her tongue. She felt his cock pressing at her scaly side through his clothes and moaned encouragingly when his hand cupped her enlarged breast.
After several long, delicious moments exploring her new body, Joe gave her his answer.