A certain costume caught Jenny's eye. It looked mostly human, unlike the others, which were animals or strange other things. The mermaid costume was the most human looking one. She pulled it off the rack.
There were actually more parts to the costume than she had thought. There was the tail, of corse, but it also had a second skin. The skin of the costume was very pale. The breasts in the costume were at least G cups and the hair was very long and full. Jenny touched the blue-black hair. It felt like real hair.
"Maybe it IS made of real hair." Thought Jen. "I've heard of some wigs like that. This must be quite an expensive costume."
Luckily, before she started putting on the suit, she saw a sign on the inside of her closet.
It read:
FOR A BETTER COSTUME EXPERIENCE, PLEASE TAKE OFF ALL CLOTHING BEFORE WEARING THE COSTUME
Jenny complied, dropping her bathrobe to the floor. She slipped her legs into the tail, running her hands along the dark blue scales. The inside of the costume was slick but comfortable. She sat down once she had the full tail on, finding it hard to stand with it in. She pulled on the rest, except the mask. She zipped up the back and folded the piece of material over it. Then she put on the mask. She looked in the mirror. Her face was beautiful, with full, naturally red lips and smooth skin. She examined her large breasts and fish tail. She ran her fingers through her blue-black hair, noticing that it felt so real, it could've been her real hair. She slipped into the lagoon.
After swimming and splashing around for a bit, Jenny decided to go to bed. She dragged herself out of the lagoon and dried off. She fumbled behind her head for the seam but couldn't find it. She looked at her back in the mirror and still couldn't find it. She was starting to panic.
"Why isn't it there?" Said Jenny, panicking. "What's going on?!"
She looked for a way out of the costume for several minutes before she gave up. She sighed and took a few deep breaths.
"Well, if I'm stuck like this, I might as well have fun with it." She said. "But what could I do..."