"I got one, but.." You hesitate. "But what?" She asked kindly. "Please don't laugh, but I want to be a five year old mer child. I want to grow up learning the ways of the ocean and stuff." He said. Surprisingly, she didn't laugh. "Of course I can grant that, just sit down." She said said in a maternal voice.
You sit close, striping butt naked as The mermaid began chanting. Soon you felt yourself getting younger until you reached five. Then your legs fused into a sea green tail that you twist and turn with a childish grin. "I got a nother request, can I call you Mommy?" You ask the Mermaid. She smiled sweetly as she kissed your forehead. "Of course my child." She said, hugging you close.