I have no idea. I don't remember kink in the cartoon movie.
But I have no desire to see a live version anyway.
The only thing I liked about the animated "The Little Mermaid" film was Pat Carroll's superlative-to-me performance as 'Ursula,' the Sea Witch.
I would much more like to see a version of the tale withe the original story -- with the mermaid dying at the end while she saves her human love. And then she becomes a spirit in the sky. That is beyond beautiful to me. :)
I was fortunate to see an original ballet version with the real story.
The only "kink" I know of from the original was on the original VHS case picture....in the castle. It is now a collectors item. But I also do not remember anything in the movie itself.
None of Disney's movies follow the real story. I did not know that happened in the actual story. :)