fangirl overload

Hi i'm priyanka, I'm new to wattpad so i had a quick question when we write fan fictions do we always need to do the s "something x Reader " thing or can we simply write it 

Hey guys check out my new books on my other account @thewordlessnerd

My new account is Kayla Needham with a Hermione granger picture

I am getting a new account but will continue this one as well 

@syuceyar48 I do not understand

Thank you for adding my story to your reading list!