Peter arrives right on time on his first day to pick up Lara Jean and her sister.

He HONKS the car horn to announce his arrival when he sees the girls on the porch.

He opens the door and stands up.

"Hey. Y'all ready?"

Lara Jean's little sister responds with a resounding "Oh hell yes!"

The girls get into the car and everyone starts to settle in for the ride.

Lara Jean straps herself in.

As Peter pulls his seat belt over himself, he sees something liquid-y in Lara Jean's little sister hands. In his car…

"Hey, little LJ, what is that?"

The girl looks unamused by his clever nickname.

"A Korean yogurt smoothie? And my name, thanks for asking, is Katherine Song Covey. Kitty to my friends. You can call me Katherine."

She was not to be messed with and nothing like Lara Jean in personality.

"Yes, ma'am." Peter looks to Lara Jean, impressed by his formal introduction to the Covey Clan.

"She's feisty!" Lara Jean smirks as she nods, fully aware of her sister and her antics.

"Kitty, put on your seat belt."

Kitty reaches for her seat belt. "So how exactly do you know my sister again?"

Peter chuckles, "Uh, well I guess I'm her boyfriend."

Peter faces Kitty to see how she takes that answer when Lara Jean almost does a legit spit take in his front seat.

I guess she hasn't told her family.

"Can I have some of that?" Peter did his best to seem nonchalant.

Kitty offers him the unopened treat, "Sure."

Peter opens it and takes a sip. It's delicious.

He looks to Lara Jean, surprised. "Oh wow. That is really good."

"Hey, what do I have to do to get you to bring me one of these tomorrow?"

Kitty's face lights up. "You're driving us again?"

"Yeah, of course."

"Okay, you can call me Kitty!" She takes the opened drink and sits back.

Peter leans over to Lara Jean, whispering albeit sort of loudly, "Progress."

She offers him a hard earned smirk.

He had passed the Kitty test.