If you're getting a bunch of crap for aparently copying sombody else's story line, tell them to shove it.
1. They met on a complete different site. Instagram rather than kik.
2. Its Niall Horan and not Harry Styles.
3. You have a complete different writing style than the other girl.
Don't get me wrong, you both are great writers, you just have different styles.
4. Maybe some people want to read a Niall Horan sexting story than a Harry Styles one.
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I do agree that if you use the EXACT same story line then you should stop, but if its different then I think people should shut the hell up and leave you alone. They DONT have to read it.