That book started out the same with me leaving my wife but for the rest it was all fantasy. Unlike what I am publishing now on Literotica which is a true story about me and my new love partner.
That story was about a nunnery taking me in for a few nights because I was temporarily homeless. To my surprise the fifty, mostly young, nuns had an active mutual and depraved sex life. And I was their God given toy boy. Of course the number of fifty nuns supported the title Fifty Shades of Brown. And quite literally too because after some initiations I was given a treatment of confinement in my bathroom where one by one came and took a dump on my face. So fifty shades of brown poo.
The experience lasted a full day. Most of the nuns had to go in the early morning. Last one to open my bathroom door was at 9 PM and she had the runs. Nice to top off the whole pile on my face.
Then, the most kinky nun came in and smeared the whole pile of shit over my head and body. Then sat on my face and rode my face till she came. Then, without a trace of disgust, she put my cock into her mouth and gave me a ferocious blow job.
Other experiences I wrote down were being woken up in the morning with poo and pee for breakfast. Every day. And they took turns every day. So around fifty days of different filthy breakfasts.
Also they tied me up naked outside to a tree, sitting down in the grass and a bunch of them came by and flung their waste at me from a small distance. Most of their shit was landing on my face and slowly oozing down my neck and torso eventually piling up in my lap. That felt really good on my dick. Also here at the end the kinkiest nun came when they were all done and gave me a blow job therefore needing to bury her face deep in the piled up shit in my lap. After the blow job she french kissed me and that did not bother me at all. At that moment I really enjoyed the taste of shit mixed with my own cum.
Another time I was tied on top of a table and shaven from head to toe. After that they also took turns defiling me with their waste, poo and pee. A day later they took me to their communal shower room and plastered me with pie, whipped cream, chocolate sauce and every oozy component of cakes you can think of. And a few of them then licked me clean and were putting my cock in their mouths by turn.
They threw a dice to decide in whose face I would be allowed to cum. And boy, did I cum! The face of the lucky nun was completely covered in my sperm. Had to lick that clean myself.