My friend saw what type of fanfiction I read

I like to read fanfiction to get off and a while ago I found one that involved monster fucking on Tumblr. On Tumblr people you follow can see posts you've ❤️'d and my friend could see that post. She brought it up recently and I was mortified. We talk about naughty stuff all that time but idk I was specifically embarrassed about that story. Can't even remember the story fully