Yes, Perth calling Houston onee-sama would be perfect. They do look like daughters of an upper class household after all.
You need to look after yourself.All better. You look as wonderful as ever. Now, good luck.Th-thank you,Houston.You're supposed to call her "Onee-sama"!I don't understand what the girls from this country get so worked up over.Perth, are you about to sortie?Come here for a moment.Your necktie's crooked.