She stays and becomes a full-time nudist.

(This chapter was originally made by user CaptainPulse at Writing.com )

With everything that had happened in the past week, Mackenzie had found herself happier than she had in a long time. She had grown accustomed to her naked state, and even liked the feeling of freedom that came with it. Her new friends were nice and she never had to worry about them playing mean pranks on her. She didn't have to feel embarrassed any more.

So, Mackenzie made a decision. She had written a letter to her family explaining where she'd been, and that they didn't have to worry about her. She was happy where she was, and was choosing to stay. When the delivery truck came, she asked the man behind the wheel to send it to the post office along with a request to send her personal belongings to the resort's address… minus her clothes, of course.

Mackenzie was now a true nudist, and was proud of it.