I just realized that I have read TH fic before, back in 2006 the last time I did MMOM. I had never heard of them, and had no idea who they were or what they looked like or anything, but I figured I'd give it a go. I was only just getting into SPN fandom so didn't know about my twincest kink then or even know they were twins until it became obvious in the fic :D

lol now I'm totally going to think of Tom/Bill/Adam threesomes every time Adam mentions Bill!