Joanne never figures it out

"Well, good thing the cart arrived right when I woke up!" Joanne beamed.

"Yeah mom, hope it refreshed you."

"Maybe a little too much," Joanne continued coyly, "I need to use the little girl's room to tinkle!"

"Ugh, gross, mom!" Sam snarled in disgust as Joanne got up past her and jogged to the restroom. Everyone in the seats was staring at the naked woman jogging to the back, but Joanne paid them no mind.

Joanne sat down onto the toilet and decided to check her phone rather than look down to see her naked self. After ten minutes or so of relieving herself and playing Candy Crush on the plane's WiFi, she washed her hands and walked back to her seat, scooching past Sam once again and sitting down.

"Much better!" she told Sam with a smile, "I can't wait to see where we're going!" before sipping on what was left of her Coke.

"I don't fucking believe it!" Sam turned to her sister behind her and whispered. It was then that Lacey noticed that Sam still had a shirt on.

"Neither do I..." Lacey simply agreed without giving more context.

Eventually a voice came over the intercom.

"Ladies and gentlemen, thank you for choosing Gamma Air Lines today. We have about 40 minutes left before landing, so the garbage cart will be coming around to collect any trash you have."

"Oh, I forgot," Joanne said characteristically, "where are we flying again, Sam?"