<cue 70’s porn music>
Bam Chicka Wow Wow.
linkage below.
J.K. Rowling to write Adult fiction.
I can already hear all the late night comic jokes about the word “Adult”. However, it’s not to be related to the Potter world.
Wait and see I suppose 
Ahh, godd to see that you had an after-thought using this thread title. 
Yes, I’m sure there’s a small hillock’s worth of fanfic that covers the “alternate meaning” implied here.