Galko's skin got really dark as a result of tanning.
Otako comments that since Galko's skin has tanned so much, her nipples must be dark as well. Along with Ojou, Otako yells that Galko has dark nipples.
Oh, yeah! You smell really sweet!
تفوح منكِ رائحة جميلة حقاً
Ja, du riechst wirklich süß.
Es verdad, hueles dulce.
C’est donc ça qui sent si bon !
Ah! Infatti hai davvero un profumo dolcissimo!
Ah, realmente, o cheiro é bem doce!