Dark and twisted HET? I know one of them, kinda...

A woman targets Dean, but they soon find out who is the more dangerous predator. Oneshot.
http://www.fanfiction.net/s/3585735/1/
One Night In Pasadena by Tempestt

Alley

Yay!! Thanks!

Totally glad you liked Sleepless road so much. ;-) Made of awesome.
I just rec you some of my fave Jess-fics since these are like the only het-fics I´ve read in the fandom.

http://stephanometra.livejournal.com/272955.html
Sam/Jess-kinky porn and it´s hot.

http://kellifer-fic.livejournal.com/73967.html
Not sure, if I already recommended this one ... Dean&Jess interaction.

http://kajikia.livejournal.com/5829.html
Sam/Dean/Jess kinda ...

http://kroki-refur.livejournal.com/72426.html
I didn´t read it yet, but I hear it´s pretty awesome and the author is rec-worthy anyway. (Summary: On October 2, 2005, Sam Winchester walked out of the apartment he shared with his girlfriend Jess in the middle of the night and didn't come back.)

http://niz4.livejournal.com/23581.html
Jess/Sam, Dean

http://poisontaster.livejournal.com/tag/transmutation
http://poisontaster.livejournal.com/168654.html
Sam/Dean/Jess - Transmutation-verse.

http://thenyxie.livejournal.com/464875.html
Dean/Jess in a weird weird way. Dark and disturbing.

Hope you enjoy. =)

Ooooooh!!! Goodie!!! Thanks so much! Can't wait to read ...

I can't possibly list all of my favorites, so here's my delicious het (http://del.icio.us/ninhursag/Het) tag.

Awesome! Thank you!!!

dean/ofc, longfic, dean has amnesia:
http://casspeach.livejournal.com/19940.html

girlDean/Sam - I would also recommend the rest in this 'verse too:
http://community.livejournal.com/lightontheblue/19580.html

sam/jess/ofc
http://mickeym.livejournal.com/1005721.html

sam/dean/ofcs - a series of threesomes that are unbelievably hot. they cause my underear to spontaneously combust.
http://thenyxie.livejournal.com/399665.html

sam/jess/dean - this one's more dark and twisted
http://thenyxie.livejournal.com/407640.html

actually, any het by thenyxie is good.

Yay!!! Thanks so much!!

If you don't mind a self-rec, I wrote a het story once. :P (Yes, just once.)

It's Sam/Ruby and vaguely dark and twisted, but mostly just because it's Sam sleeping with Ruby:

Nothing I Won't Give (http://annabeth-fics.livejournal.com/33805.html).

Self-recs are love! :-) Thanks so much!

I also have a bunch of het on my del.icio.us (http://del.icio.us/azephirin/spn%2Bhet).

Yay!!! Thanks!

My favorite dark het is Mockingbird by Author:hiyacynth-
Summary: Dean frowned and shook his head. Even if he wanted to, how could he start to explain what Sam was these days? He wasn't sure himself. He knew what Sam had been before the war. He had a pretty good idea of what Sam'd been during. And he knew Sam wasn't either of those things anymore.
http://hiyacynth.livejournal.com/218645.html

My favorite sweet het story is - by Maya Perez- it's called Jess-
College life was proving far different than what Jessica had expected. Then she meets a mysterious reclusive scholar and soon nothing would be the same.
http://www.fanfiction.net/s/3691074/1/Jess

And if you don't mind self recs- I co-wrote a dark onesided het -
Every Breath You Take- by sendingtheclowns and gidgetgal- summary-
A move puts fifteen year old Sam in danger when their apartment manager turns out to be a psychic vampire. Will her addiction to Sam, destroy the Winchesters?
http://www.fanfiction.net/s/4078625/1/Every_Breath_You_Take

Yay!! Thanks so much! And self recs are love! :-)

I always feel weird leaving self-recs, especially with girl!Sam fic since it's not everyone's cuppa even if it is het, but I recently wrote a girl!Sam/Dean/OFC fic: Driving With Their Eyes Closed (http://salinasfic.livejournal.com/12039.html) (the first part is only girl!Sam/Dean, but the threesome is in part two). Just thought I'd throw it out there. :)

And a handful of my favorite het fics are linked here (http://del.icio.us/salinasvalley/het) at my del.icio.us account, but I don't really use the account religiously for recs so it's kind of sparse, sorry haha.