Nurse Joe (Patreon)

He is a story inspired by a caption image by Becky.  She has always been happy for me to  use her caps: "feel free to use any of my captions to re-create or add to a story, i love what you've done".  I have also helped Becky to write her first full story on Fictionmania.  But in the last week on that site I have been accused of plagiarism for what I do - something I vigorously deny.  You be the judge.  Here is my story and the cap that inspired it.  Am I passing off the work of another as my own?