David and Stevie (the female motel desk clerk) wind up in bed. Later, they are shopping for a bottle of wine to bring to a dinner party.
Stevie: "So, just to be clear, I'm a red wine drinker".
David: "That's fine."
Stevie: "I only drink red wine."
Stevie: "And up until last night, I was under the impression that you, too, only drank red wine. But I guess I was wrong?"
David: "I see where you're going with this. I do drink red wine. But I also drink white wine. And I've been known to sample the occasional rose. And a couple summers back, I tried a merlot that used to be a chardonnay, which got a bit complicated.
Stevie: "So yes, you're just open to all wines."
David: "I like the wine and not the label."
Then, just to make it clear to the audience, the father, Johnny Rose, talks to the mayor of the town, Roland Schitt:
Johnny: "My son is pansexual"
Roland: "I've heard what that is, that's the cookware fetish."
Johnny: "No no, he loves everybody. Men, women, women who become men, men who become women. I'm his father, I always wanted his life to be easy. But, you know, pick just one gender and maybe everything would have been less ... confusing."
Roland: "Well, Johnny, when it comes to matters of the heart, we can't tell our kids who to love."
Later, the father talks to David and Stevie:
Johnny: "David, I just want you to know that I support this. And not the fact that you're sleeping with a girl, which is great, but I'd be just as happy if you were to bring home one of your guy friends"
Johnny: "David, I just want you to know that I endorse all your sexual encounters."
I was impressed that they never made any attempt to make people's orientation part of the humour - all of the laughs are directed at people's awkwardness.