Supernatural Story Finders

Hey guys, driving me crazy trying to find a specific fic, so please help! The sad thing is I remember it really well, just not the title or author and googling isn't helping. It's been around for a while, so I'm sure someone will recognise it :)

Basically, it starts off that Cas has been infected by an incubus. Sam is freaking out and is all "what are we going to do, Dean? We can't get him a hooker!" and Dean's like "of course we're not going to get him a hooker! I'll take care of it!" and Sam's all "what?" and Cas says "I thought you were going to tell him!" and Dean's all "he already knows!".

We then flash back to five times that Dean and Cas were together right under Sam's nose, but he was too clueless to work out what was going on. So there was one time he caught them in the shower together and Dean told him that he was teaching Cas how to wash. And the first time after they had sex, Cas comes by for breakfast and Sam thinks Dean ditched him at the bar to go sleep with a random chick and he's all outraged, but Cas misunderstands and says "yes, Dean "ditched" me last night, so now we are having breakfast together".

Anyway, it's an awesome fic, really cute and funny and I could basically recite it line by line, but Google hates me and won't find it and I can't remember the author, title or site I found it on. My bookmarks need someone serious work.

But in the meantime, please tell me someone recognises it??