I don't know how SPN can be so serious about some of this stuff when they know the writers know about fandom! It's not like the show itself doesn't have a sense of humor! Oh fans, wtf. Merlin fandom is the epitome of fandom that laughs at its material and that is awesome.

Blood or something! dude maybe! Something tells me futureSam might be addicted to demon's blood? Maybe futureSam sexes up pastSam in the attempt to impart something to him that will change the past? omg what if future sam wants past sam to drink his blood GROSS ewwwww
(you know, them knowing each other's tells, that just means whatever happens is consensual, right?) (HAHA consent between past and future selves! oh so weird.)

NOW I HAVE. I think Castiel/Jensen has definitely occurred to me but I never thought of Dean/Misha, until now, and OMG Lass I think I LOVE IT. Does it exist? saflksfdljk