Here's how setting back and meeting Yuna goes in The Day the Griffin's Came Part 1.
Brian: Everyone, we're going back to Quahog.
[but then Yuna comes out to greet them]
[Everyone stops and looks back]
Brian: Uh, hello, can we help you with something?
Yuna: Yes. Mama told me about you guys. So I came to meet you.
Chris: Oh, my God! She's so cute!
Lois: Look at her. A nice blue coat, a well done mane and tail. And shiny light blue hooves. You're a spitting image of your mother.
Peter: Brian, I think we should stay here for a while.
Brian: Alright then.
[Everyone is having fun with the ponies]
Chris: This is a song, I wrote.
Chris: ♪ Evil Monkey holds the key ♪ ♪ Evil monkey's gonna get me ♪
♪ I'm hiding underneath my sheets for fear he'll point and show his teeth ♪
♪ Evil, evil monkey! ♪
Ponies: ♪ Evil, evil monkey! ♪
Chris: ♪ Evil, evil monkey, OWW!! ♪
[and soon, enough, it was night time]