Problems with a Friend (Non Religious OP)

Backstory: I have this friend who I met over online school a little over a year ago. We will call her N. Ive been texting her since March of this year.

Current Issue: N is a Jehovahs Witness which some may know is very strict. I write fan fictions for Stranger Things and N is the only one who reads them and even knows about them. I recently wrote a story regarding y/n and Robin (who is lesbian). She suggested it be a Robin x Y/N story, a lesbian story. It also had some premarital spicy stuff in it. She seemed fine about it and even gave me the idea for it! Today I got a long text from her saying that her parents read our messages and yelled at her for reading it and exposing herself to that. Am I in the wrong? Teens are supposed to explore but I was fully aware her religion forbids it but she gave me the idea and was so supportive about it. Help!