Season 9, Episode 12: "The Reverse Peephole"

So you're sleeping with Silvio's wife?

Well, there's very little sleeping going on.

Well, why didn't you tell me about this?

I don't see how it's any of your business.

Well, it's my business now.

Look, I stuck up for you.

Man, if he catches you, we're both out.

Hey, what is that up that tree?