abusive relationships and Dean defending his and Sam's relationship

[imogen-lily.livejournal.com]

Hi Everyone

I'm completely new to the Supernatural fandom and I've recently discovered the joys of Wincest, and Jensen/Jared, very late I know! I was wondering if any of you could rec me some stories, as I'm not really sure where to start! I'd definately like Wincest, and I prefer long stories with porn and plot, not PWP. I'd also prefere it if Dean was the 'top' in the relationship. Any ideas?

I was wondering are there are: 

a) Any fics (ideally Wincest) where Sam is in an abusive relationship or abused in general (not Dean) and Dean finds out and gets all protective over Sam. It was be physical, emotional, mental abuse etc. Sam can be in a het or gay relationship, but I'd love him to end up with Dean at the end. 

b) Any fics (with established Wincest) where Dean (or Sam) defends their relationship to people who are anti it. It can be John, a rival love interest, another hunter, demon etc, but I want Dean defending and supporting their relationship. 

Any recs you can give would be really helpful!

thanks
Imogen