The merman held you close. There was no way to escape his grasp. He made sure that your head was just above the water, so you could breathe. He was planning on doing something to you. And there was no way out of it.

You wake up on an empty beach at night. You assumed it was all a dream. But you soon realized that you were naked. Your swimming suit layed out next to you. You quickly pack up and head home, feeling very un easy. It had to have been a dream. Right?