j2_recs has Animal Traits (http://j2-recs.livejournal.com/tag/animal%20traits), Knotting (http://j2-recs.livejournal.com/tag/knotting), and Werewolves (http://j2-recs.livejournal.com/tag/werewolves). There's some great ones in here, but they're all J2, and it kinda depends as you dig through as to who's topping. Hopefully this helps a bit though.

If you're looking for werewolf fics, In The Flesh (http://bewaretheides15.livejournal.com/25868.html) is a great one, where Jensen is a shifter and Jared is human... but it's not really explicit. Just a good werewolf fic. &hearts And of course, Cause Sanguine (http://glasslogic.livejournal.com/15206.html) is an AMAZING werewolf fic, in which Dean is human and the unrelated Sam is the shifter. Unf. Great story.

Sorry for intruding but I've heard that " Cause Sanguine " is bottom!dean. Just want to warn you beforehand :)

Is it? I couldn't remember for sure... the sexing wasn't what I focused on. ;o Thanks! *makes notes in her rec list*

There's this http://take-the-knot.livejournal.com/ community. Seems like the right place if you like knotting and animalistic trades.

Hope there will be something for you!

I love this community....thank you sooo much :D

Here is my rec list for these-all have summaries/tags so you can see what they're about(top/bottom not marked):

animal-traits;
http://www.delicious.com/redfoxrose/animal-traits

werewolves:
http://www.delicious.com/redfoxrose/werewolf%21Dean
http://www.delicious.com/redfoxrose/werewolf%21Sam
http://www.delicious.com/redfoxrose/werewolf%21Jensen
http://www.delicious.com/redfoxrose/werewolf%21Jared

http://www.sinful-desire.org/archive/viewstory.php?sid=3451&warning=5
Purrrfect Mate by Virtualpersonal
Summary: Photographer Sam Wesson has made it his life's work to take pictures of 'the unexplained.' Only now, back from a trip to the jungles of the Amazon, he is one of the unexplained - a werepanther. Deciding it changes nothing, he is on the prowl in the nightclubs of miami, searching for the the thing that is selecting and killing young people from the clubs. Dean Winchester is hunting that same creature and runs into Sam, a lot. The heat between them is incredible but is that enough to prevent the hunter from hunting that which is not human?

http://the-miss-lv.livejournal.com/12437.html


Title: Nothing Stands Between Us Here
Summary: Jensen finally has his knot form. It's a big step in a teenagers life, when he becomes a man. But there's a lot of care as well, with the knot comes a huge dose of testosterone, Jensen is aggressive and prone to violence until the hormone levels out. It's also triggers a sexual frenzy. But that's ok, his girlfriend is tucked away safe, forbidden to see him until he's in control. What no one expected was that Jensen's sexual desires weren't for her but his best friend Jared.


http://fatebegins.livejournal.com/46993.html
http://fatebegins.livejournal.com/47516.html
http://fatebegins.livejournal.com/50721.html
Title: Unexpected
Summary: When Jared was abandoned in the woods as a baby, the local werewolf pack found and adopted him after Jensen stumbles upon him. Although Jared wants to fit in, Jared has always been too scared to be turned as changing into a werewolf is a painful process. But when Jared finds himself attracted to the rising Alpha Jensen, Jared has a choice to make and Jensen is anything but patient.

http://take-the-knot.livejournal.com/15897.html
Title: Never Let You Go
Summary: Written for this prompt at the take_the_knot meme: Jared is the son of an Alpha who has thought Jared was a quick money maker since he is one of the rare male Omega breeders and not an Alpha like him. When Jared finally gets of age he sets up an auction to sell his son to the highest bidding Alpha whether Jared wants to or not.
Alpha’s come from all over to try and buy him for his breeding skills; an Alpha just puts up the winning bid when Jensen comes in late and announces that Jared is his mate and therefore cannot be sold. Jared’s dad doesn’t care about legality of the claim and says Jensen will have to outbid or fight to the death since the other man bought him.

Title: Kin and Kind
Summary: They're lost in the rockies, on the run and because their lives weren't complicated enough Sam is in heat.

http://bethskink.livejournal.com/1434.html

I just finished this wonderful fic this morning. It's very moving and well written.

Here's the link : http://lexicale.livejournal.com/6231.html

The author's summary is below.

Title: Let Not the Sun Go Down
Rating: Most chapters PG-13, but NC-17 overall
Genre/pairing: Jensen/Jared, Misha Collins/Julie McNiven, Katie Cassidy/Genevieve Cortese
Characters: Jensen, Jared, Alona Tal, JDM, Misha Collins, Julie McNiven, Adrianne Palicki, and some OCs
Word count: 98,544 - COMPLETE
Summary: In the foothills of the Blue Ridge Mountains, against the edge of the churning Nantahala, there lives a pride of creatures called the ailure -- ailuranthropes, cats with the ability to take the shape of a man. Their alpha, Jensen, has suffered a great loss, and is losing his sense of self and his direction. Not too far from them, another werecat, a human-raised runaway named Jared, is still trying to understand who, and what, he is. Grief has the ability to tear us apart, tear us down, but the ability to climb our way back out is always there, and the desire to leave behind our burdens is more than merely human.

I just finished this one too. Very hot :) Werewolf & Mpreg.


http://highermagic.livejournal.com/32884.html

Title: 28 Days

Summary: Dean gets bitten by the Alpha werewolf, and gets turned. The wolf inside of him starts looking at Sam as way more than a brother and tension mounts until Dean is forced to take the situation into his own hands. But, being a Winchester, it's just never that simple.

OMG thank you everyone, I didn't think there'd be sooooo much :D I appreciate all the help guys. Thanks again.

Great lists here as well:
http://take-the-knot.livejournal.com/9822.html

http://www.delicious.com/Knotting_meme

I too only read bottom!Sam and Jared! high five! ;D
here's a couple of my favs:

Title: In the Shadow of the Moon (http://omg-fics.livejournal.com/9527.html)
Author: albydarned
Pairing: Sam/Dean
Rating: NC-17
Summary: Sam finds himself caught between his obligations as a hunter - as a Winchester - and to his brother, his protector and all he has left in the world.

Title: Stop Shot (http://legion-of-zelda.livejournal.com/823.html)
Author: legion_of_zelda
Summary: Wereanimal!Jensen has been on his mating quest since he didn't find his mate within his pack. It's getting to a critical point where Jensen might go feral and claim his mate where ever and when ever he finds him. Jared is Jensen mate and "unfortunately" for both of them Jensen finds him in a packed college bar, at least there's a pool table in the back.