I remember that the story was on a personal website and came with art, but I'm not sure if the author/artist was on LJ as well.


Basically, Dean's possession tattoo had gotten damaged. There were claw marks or something running across it. Breaking the circle made the charm not work, and he got possessed. The demon takes him back to the hotel room where it uses his 'unnatural' feelings towards Sam against him and starts having sex with Sam.


I don't think it was an established relationship fic, though I could be wrong. I do know that Sam wasn't getting raped, though it might have been a little dub-con-ish. The demon wanted to make Sam hurt, and was pissed that Sam wasn't as agonized as he should have been.


Dean kept trying to break through to tell Sam that he was possessed. Sam somehow figures it out and exorcizes Dean. There was artwork to go with that was NSFW. I think that they were naked, and Sam's hand was over Dean's tattoo and it was smoking or something?



I might also have the boys mixed up, but I'm fairly certain it was a possessed Dean.

ETA: FOUND by your_byron . It is Devil Inside by Ponderosa