Beautiful, Slightly Out-of-Character, Non-IJ/LJ Snupin fics
I really hope this is alright to post, seeing as I have one rec that's a WIP and probably will never get finished. If it's not okay, I'm so sorry. Please tell me and I'll delete this post right away.
These two are Wolf!Remus sex, at least in parts:
Collar and Leash by adultfanfiction.net's Akinaria (she's on LJ too). (NC-17) The sex is mind-numbingly hot. I don't think it's very in-character, this fic, but it's definitely got a special place in my heart.
True Joy by Jill Vaughan. (NC-17) Snape is forced to be Remus's servant for a year. Great H/C factor, because of something that almost happened to Snape when he was younger.
An emasculation snupin; probably the only of its kind:
Another Akinaria fic unlike anything I've since seen in the Harry Potter world, Manhood. (NC-17) Warnings for this include a brutal emasculation in the first chapter. This fic is unfinished, and I'm not sure she's ever going to finish it, but I find the sex and H/C to be the best parts anyway.
These two deal with Abusive!Sirius, which I feel is an out-of-character plot device, because I don't think he'd ever do it:
Black by Black Bludger. (NC-17) This fic is a part of the Thin Line archive, an archive for Snape/any of the Blacks, but this particular fic ends up being a Snupin. A fic of Abused!Snape and comforting!Remus.
Conversely, from the Master and Wolf FQF, there is When the Shadows Cry by Draconn Malfoy. (R) It's a fic of abused!Remus and comforting!Snape.
I believe all of these are well worth the read. They're the kind of fics that stay with you for a long time after you read them. Congrats to these 4 wonderful authors and their fics.