Lips, labia and lingerie are the topics for today.
- Is it true that a person's lip color and shape represent their genitals? And the answer is: of course it isn't! What bunch of sub-morons spread such asinine rumors? But Galko-chan is worried by what Otako said. "They say you can tell what it's like down there by the shape of the lips." Yeah? Who says that? Imbeciles say that! Poor Galko, being so obviously teased and manipulated by the sinister Otako, can now only think of her friends' vaginas when she looks at their lips. Ojou admires Galko and Otako close friendship as they must have obviously examined each others' lady parts to see if they resemble their lips (or they checked this out themselves, but having a friend give an independent comparison sounds better... and hotter/more disturbing).
- Is it true that buying bras is tough if you have big boobs? Yes, some are only in smaller sizes. This is the kind of oppressive mammary discrimination that Japanese society tolerates, not appreciating how onerous and hurtful this is to the poor women with impressive racks. The dejected Galko (she'll wear any underwear as long as it's cute) ended up just buying cheap period panties at the underwear store. Ojou (her underwear collection is lavish, from corsets to thongs) asks if they get custom measured and fitted for underwear by lingerie merchants and designers making house calls. Boy, the wealthy patricians live lives of luxury and opulence far beyond the wildest dreams of the downtrodden peons and plebeians! Otako invites Ojou to go lingerie shopping with her, but she shows up going commando in a kimono (traditionally, one does not wear panties under a kimono). Later, they watch a romance movie at the cinema that had a steamy sex scene. Galko ponders aloud having passionate sex but this proves too forward and embarrassing for the bookish Otako (prefers girly underwear with frills).

How would Yanagi from High School Girls are Funky straighten such shameful discussion out? With swift punches in the face, obviously.

High School Girls are Funky-Uniform and Boys https://youtu.be/_o97cj2LKCQ
Habata - Hey. How do you get a boyfriend? Hey, boyfriends are--
Yanagi [incensed beyond belief] - Why are you talking about something so shameful?!
[Swift and bloody punch in the face] Fin. High School Girls are Funky!