Boy would they ever. I just read those SPN/Grimm fics. Oh my. It’s an interesting idea and I might read more if there’s ever more. But you’re right, they would clash so much. Especially Dean and Nick. Oh my, I can just see it. But it would be rather amusing.

Right? Can you just imagine Nick trying to explain to Dean “if it’s supernatural we kill it” Winchester that he protects a lot of the Wesen he comes across? Or that to date, his social circle consists of his BFF the blutbad, whose wife is a fuchsbau, and their families…along with a couple of repeatedly-enspelled humans, an eisbieber, his boss the half-zauberbiest, and another grimm. And that he’s currently mourning the deaths of his grimm mother and accidental hexenbiest girlfriend while awaiting the birth of his child by another hexenbiest.

Just…picture the look on Dean’s face for a minute.