Do you mind if we join in

Ain't this your sister?

I know it's my sister, though.

Oh, well, um, let me...

Officially, it's not my real sister.

It's my sister-in-law.

Really?

Um, did you want me to suck your dick, too?

Oh, hell yeah.

You wouldn't?

Hey, man, I'm winning, man. Go ahead, man.

Get over there, my dear.

You might...

You get involved in here, too.

Oh, yes.