Interesting thread idea, OP
Lolita is an absolutely marvelous book which couldn't be more highly recommended as a novel, but I don't know that it explores the wherefore of unorthodox sexual attraction.
In my view the ultimate place to find your answer is in de Sade's Juliette or Vice Amply Rewarded. There's gazillions of translations but most are crappy hard/soft core porn and there's only one decent English translation readily available by Austryn Wainhouse Grove Press NY 1968.
Juliette is a tale of degradation - it starts of relatively mildly and then descends by degree to depths of depravity unsurpassed. It's a big volume, but perhaps one third is "eyes out on stalks" sex scenes interleaved with "philosophy", the why what's going on is happening. It's about the process of addiction and what it does to its host, and addictions require ever higher dose levels to achieve the needed satiation. No one having read this book will ever see the world the same again.
Freud - I haven't read much other than The Interpretation of Dreams when I was a highschool boy but my memory is that it was very dry and not really for the general reader. I consider his significance to be in the way his ideas influenced sociologists, like Bernays. And I've never read Bataille. Sorry.
