SPN meets MFU?

[green_key]

Finally catching up on all the shows on my DVR, all of which are 2-3 eps behind. I've just started watching Monster Movie, the B-movie-style Supernatural episode in b&w. The moment Sam and Dean walked out in dark suits with stark white shirts and long ties, I couldn't help but think 'omg, they're so Napoleon and Illya!'

So the question is, which is Napoleon and which is Illya?

And where is the MFU/SPN crossover that would be so damn fun?