Currently reading "Tokyo Vice" by Jake Adlestein.
Jake was an American reporter who ended up covering crime for the major newspaper in Japan. This might sound semi-interesting on paper (really interesting to a journalist) but it is SORDID. This guy has absolutely no filter and talks at length about having sex with a speed-addicted stripper who was at one point the girlfriend of a Yakuza-related illegal animal importer and gives a Dante's Inferno-esque tour of Tokyo's horrifying, bizarre sex-trade underworld.
When I mean this guy has no filter, I mean he has NO FILTER. He openly talks about getting hj's at some parlor. He also, at one point, becomes an "escort" which are these weird bars where women will go and pay for companionship with the man of their choice -- it's a non-sexual thing but it's still really creepy to an outsider. Then there are all these graphic descriptions of the horrors of Japanese porn and role-playing strip clubs. And he also talks about sex with his wife in sordid detail.
I am not a fan of any sort of smut whatsoever. But for some reason this book is completely riveting. I think it's because 1) It's a great fish-out-of-water story and 2) I'm a reporter and can understand the morality play that becomes his career, even though I've never had to do anything even remotely close to him. I'm pretty sure anyone would be really interested in this book, though.