Otako explains that girls with big boobs also have big areolae.
Galko denies it, thinking she's talking about her.
You can read the original comic here! http://info.nicovideo.jp/seiga/book_anime/#m1_gyaruko
Official Galko-chan Nico Nico Page and List of Episodes: http://ch.nicovideo.jp/channel/ch2617618
Episode 2 - "Is It True That You're a Rich Girl?" : watch/1453955050