http://www.youtube.com/watch?v=j_QLNmWp2AM

In the episode ["The Red and the Black"](http://x-files.wikia.com/wiki/The_Red_and_the_Black), Krycek kisses Mulder on the cheek.

This scene always had an improvised feel to me.

**Was the kiss scripted or was it improvised on the spot?**