You know, I am old enough to not be ashamed of the things I like. But there are times and places where you don't necessarily talk about them. That being said... I write fanfiction. I like Yaoi except for the ones in which the older/richer/more powerful partner pursues a guy who doesn't want them, who pleads not to be groped and fondled and the first character does it anyway, endlessly. Sorry me boyos, that's sexual assault, and not what I am looking for in Yaoi. Oh yes, and I write some very adult stuff, too with prose that's downright violet (Purplish, that is, not violent).
I still have an active fantasy life (which helps when it comes to writing), and some of my favorite movies are violently hated by other people, like "Hawk the Slayer", "The League of Extraordinary Gentlemen" and "Dungeons and Dragons: Wrath of the Dragon God". I also like "Scourge of Worlds" the CGI- Animated D&D Feature. And I love to read. A lot. Including what is usually called Kid's Books (in the J Section of the Library I work at), stuff like the Roman Mysteries, The Goddess Girls series. The Edge Chronicles, and the Bartholemew Grimes series.
Moving up to more adult fiction, I read a lot of Sci-Fi and Fantasy, along with Romance and Historical Mysteries, but I'll pick up anything if it looks interesting enough. And Graphic novels, too, though lately, alot of them have been sucking and blowing goats. (I blame you, Marvel and DC!)
The thing I could say I am most ashamed of is being attracted to videogame characters. Somehow, I now have the Sniper and Engineer from Team Fortress 2 taking up space in my head (and I haven't even played the game!), and I just spent most of two days on Deviant Art looking up pictures of them. I may be 43, but I'm still a teenager inside, it seems.
Oh yeah, and I was a nerd before being a nerd was cool. Still love Doctor Who and Babylon 5. I still slightly prefer Babylon 5 to Star Trek or Star Wars. And just to complete my little catalog of "guilty pleasures", I still play Dungeons and Dragons, and have all the books from the first three editions, plus all my modules, with doubles of the ones that are getting awfully careworn (Temple of Elemental Evil, anyone?)