tattoos, dragons, angels and bonding

Hey everyone. :)

I was just wondering if any of you could point me in the direction of fics that have anything to do with using tattoos as a form of bonding. I'm looking for either Balthazar, Cas or Gabriel using it as a way to mark Dean. I did read one fic where it was Jensen getting a dragon tattoo, and it was a tattoo of Jared he picked and they were paired up like that. Fics of Jensen, Misha, Richard, Jared and Sebastian would fill that as well.

Thanks in advance.