Horror Erotica: The Merman - Nikita King When I started reading this very short novella, I was expecting to feel like this...But then I read this...Merman's sex organs were a lot like dolphins. They both had a retractable penis that was also prehensile, which meant it could grab swivel, hold and wrap around an object. They could use their penis to explore object like a hand.And...And that my friends sums up the tale of "The Adventures of The Bendy Phallus and Friends"