The two of you are from different worlds, each of which contains an Earth, the bar puts in.
Jenny is not nerdy enough to make a joke about Earth 2. Instead, she glances back at the original napkin before settling herself onto a bar stool. The stuffed unicorn may have its own place on the stool next to hers. (Fancy was hers before he was Anne's, she is allowed to be possessive.) "So, how do beverages work? I don't carry money in my pajamas or anything... And I can't, like, pay you in magic or anything. I am boringly magic-free."
The first drink is free. After that you would need money, although you may open a tab.
"Cute unicorn," Lexi adds.
She picks up Mr. Fancy from his spot next to her and holds him in front of her as she turns to Lexi. "Hello! I am Mr. Fancy! Thank you for saying I am cute!" Her low voice isn't at all believable, but it is also, for duckling reasons, definitely aimed at small children.
Lexi raises an eyebrow at the puppeteering job.
She glances over to see what the napkin says, and splutters slightly. "Er, anything? Geez, I don't know. Something pink?"
Jenny receives a bright pink smoothie with a ribbon of white yogurt in it. There is a straw.
She offers it to Lexi. "Want to try some?"
A second straw appears. Complimentary.
Lexi tastes. "Oh wow, this is so good."
"I am very pleased with the results of my not at all specific order! Thank you, nice bar."
"What happens if I order a whatever-would-be-good?" asks Lexi. Lexi gets something steaming and chocolatey. Sip. "Oh wow. Good things happen if I do that."
"It's chocolatey. And hot. It's not exactly hot chocolate, I think? There might be other stuff in it. Hot... chocolate... eggnog? You can get another straw and taste it, fair's fair."
"I mean, I don't know what eggnog tastes like or anything, but- sure! Thanks." She retrieves a straw from bar and takes a sip. "Awesome. Chocolate!"
The door is engulfed in a golden glow and in trots a small quadrupedal mammal.
"It's a magic bar and you are the cutest tiny unicorn! Hi tiny unicorn!"
"...Hi? Why am I in a magic bar? I did not see this coming," says the tiny unicorn, shifting her weight from hoof to hoof.
"Don't be sad tiny unicorn," urges Lexi, "it's okay, the bar says that when you go out it'll be just where you left."