I hope I don't catch hell from the moderators for posting this blog entry, but as I mention in my profile I have published a lot of erotica under the banner of "Bad Penny Press" on Kindle and Smashwords.
There are some free titles available, so this isn't completely a sales pitch. Anyway, if you're so inclined you can check out my "fapable catalogues" at:
Smashwords.com is a 100% free membership; downloads are available for Kindle, Nook, Apple, .pdf, html and more. My Smashwords catalogue is the source for my incest titles, available in gay, hetero, and bi, and there are over 80 titles of all genres available. (I'm also proud to admit that a number of the gay stories are based in personal experiences! )
For Kindle users, simply search for Bad Penny Press under Erotica on Amazon.com. (Kindle does not publish incest erotica.)