Last friday night, Louis CK was on Leno to discuss making out with his dog.

Oh, and his excellent show Louis. And his upcoming standup special.

BTW, on the flight out to LA to do the Tonight Show, Louis got drunk and went on an epic twitter rant, including some choice words for Sarah Palin. Of course, Jay brought none of this up, despite the fact that Louis was on the same show as Bristol Palin.

Video after the jump.

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