On the train, being anally probed makes it harder to hold back the urge to defecate, and the more you try, the stronger the illicit pleasure assaults your anus. As feces shoots out, your body convulses violently, spreading shame fluid throughout the carriage as you reach a perverted orgasm! At the used bookstore I always went to, I accidentally saw this fetish novel. Too embarrassed to buy it... The straight-A student was tormented by guilt but her curiosity got the better of her and she shoplifted it. However, the old man who ran the bookstore wasn't blind. Days later, the girl was called into the warehouse and made to swear an anal slave contract...
