Anal Sex

I'm the type who is a 'fiction is fiction' reader. Like I don't care how fucked up the story or the relationship or what not it has never once bothered me (ie shotacon, rape, assault, gore, toxic romance....mind fck)....and no let us be clear I have never once in my entire life have ever thought of wanting to do/experience those fcked up shit I read so please don't start in here, keep it classy okay? :)

As long as I don't hate the characters, I like the story, the plot isn't super badly written (like a really convoluted plot line that doesn't even make any sense or tons of unnecessary drama of misunderstanding) regardless of whatever it was about I just consume it and move on to the next.

What types do you tolerate? What can't you? What stories got past those tolerance, if any?

I am sorry if I sound weird here guys. I am just curious about anal sex. I was wondering if any of you had experience.

Like is there prep needed before you do it? Sorry for saying this, are there a bit of poop sometimes?

Again sorry for being weird because I couldnt sleep and my mind is going places.